10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

(Mark One)

x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended October 29, 2011

or

¨ TRANSITION REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from             to             

Commission file number: 000-30877

Marvell Technology Group Ltd.

(Exact name of registrant as specified in its charter)

Bermuda	77-0481679
(State or other jurisdiction of	(I.R.S. Employer
incorporation or organization)	Identification No.)

Canon’s Court, 22 Victoria Street, Hamilton HM 12, Bermuda

(441) 296-6395

(Address, including Zip Code, of principal executive offices and

registrant’s telephone number, including area code)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    x  Yes    ¨  No

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    x  Yes    ¨  No

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated filer	x	Accelerated filer	¨
Non-accelerated filer	¨  (Do not check if a smaller reporting company)	Smaller reporting company	¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    ¨  Yes    x  No

The number of common shares of the registrant outstanding as of November 25, 2011 was 583.5 million shares.

TABLE OF CONTENTS

		Page
PART I. FINANCIAL INFORMATION
Item 1.	Financial Statements:
	Unaudited Condensed Consolidated Balance Sheets as of October 29, 2011 and January 29, 2011		2
	Unaudited Condensed Consolidated Statements of Operations for the three and nine months ended October 29, 2011 and October 30, 2010		3
	Unaudited Condensed Consolidated Statements of Cash Flows for the nine months ended October 29, 2011 and October 30, 2010		4
	Notes to Unaudited Condensed Consolidated Financial Statements		5
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations		22
Item 3.	Quantitative and Qualitative Disclosures About Market Risk		28
Item 4.	Controls and Procedures		30
PART II. OTHER INFORMATION
Item 1.	Legal Proceedings		31
Item 1A.	Risk Factors		31
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds		44
Item 6.	Exhibits		44
Signatures			45
Exhibit Index			46

1

PART I: FINANCIAL INFORMATION

Item 1. Financial Statements

MARVELL TECHNOLOGY GROUP LTD.

UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS

(in thousands)

	October 29, 2011			January 29, 2011
ASSETS
Current assets:
Cash and cash equivalents	$	850,944		$	1,847,074
Short-term investments		1,573,754			1,082,956
Accounts receivable, net		451,108			459,406
Inventories		309,968			245,448
Prepaid expenses and other current assets		52,124			66,945
Deferred income taxes		9,617			10,818
Total current assets		3,247,515			3,712,647
Property and equipment, net		373,628			358,440
Long-term investments		23,218			26,226
Goodwill		2,009,662			2,004,833
Acquired intangible assets, net		102,432			124,631
Other non-current assets		110,920			111,380
Total assets	$	5,867,375		$	6,338,157
LIABILITIES AND SHAREHOLDERS’ EQUITY
Current liabilities:
Accounts payable	$	355,404		$	332,007
Accrued liabilities		82,671			85,994
Accrued employee compensation		154,448			146,524
Deferred income		69,244			76,161
Total current liabilities		661,767			640,686
Non-current income taxes payable		132,096			136,262
Other long-term liabilities		34,213			39,340
Total liabilities		828,076			816,288
Commitments and contingencies (Note 10)
Shareholders’ equity:
Common stock		1,179			1,317
Additional paid-in capital		3,790,169			4,805,588
Accumulated other comprehensive income (loss)		(295	)		1,092
Retained earnings		1,248,246			713,872
Total shareholders’ equity		5,039,299			5,521,869
Total liabilities and shareholders’ equity	$	5,867,375		$	6,338,157

See accompanying notes to unaudited condensed consolidated financial statements.

2

MARVELL TECHNOLOGY GROUP LTD.

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(In thousands, except per share amounts)

	Three Months Ended					Nine Months Ended
	October 29, 2011		October 30, 2010			October 29, 2011		October 30, 2010
Net revenue	$	950,417	$	959,327		$	2,650,339	$	2,711,380
Operating costs and expenses:
Cost of goods sold		412,100		390,808			1,124,692		1,101,475
Research and development		266,255		218,420			758,396		665,742
Selling and marketing		40,500		39,751			119,042		115,037
General and administrative		29,021		29,576			77,436		78,124
Amortization of acquired intangible assets		11,155		21,770			36,634		65,533
Total operating costs and expenses		759,031		700,325			2,116,200		2,025,911
Operating income		191,386		259,002			534,139		685,469
Interest and other income (expense), net		7,729		(1,665	)		9,575		(1,205	)
Income before income taxes		199,115		257,337			543,714		684,264
Provision for income taxes		3,994		1,605			9,340		2,988
Net income	$	195,121	$	255,732		$	534,374	$	681,276
Net income per share:
Basic	$	0.32	$	0.39		$	0.87	$	1.05
Diluted	$	0.32	$	0.38		$	0.85	$	1.01
Weighted average shares:
Basic		600,504		649,782			615,987		646,246
Diluted		613,499		674,789			631,257		676,023

See accompanying notes to unaudited condensed consolidated financial statements.

3

MARVELL TECHNOLOGY GROUP LTD.

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(in thousands)

	Nine Months Ended
	October 29, 2011			October 30, 2010
Cash flows from operating activities:
Net income	$	534,374		$	681,276
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization		66,653			68,991
Stock-based compensation		88,446			87,126
Amortization of acquired intangible assets		36,634			65,533
Facilities impairment		—			1,140
Other (income) expense, net		11,411			9,568
Fair market value adjustment to aquired inventory sold		—			(2,391	)
Excess tax benefits from stock-based compensation		(99	)		(669	)
Deferred income taxes		3,169			(6,486	)
Changes in assets and liabilities:
Accounts receivable		8,298			(111,179	)
Inventories		(63,967	)		15,856
Prepaid expenses and other assets		31,060			(3,718	)
Accounts payable		4,193			63,935
Accrued liabilities and other		(18,030	)		17,948
Accrued employee compensation		6,924			26,965
Deferred income		(6,917	)		28,820
Net cash provided by operating activities		702,149			942,715
Cash flows from investing activities:
Purchases of marketable securities		(1,582,892	)		(1,021,950	)
Purchases of strategic investments		(3,503	)		(1,750	)
Sales and maturities of investments		1,083,214			678,738
Cash paid for acquisition, net		(18,760	)		(20,679	)
Purchases of technology licenses		(9,593	)		(12,649	)
Purchases of property and equipment		(62,330	)		(63,267	)
Net cash used in investing activities		(593,864	)		(441,557	)
Cash flows from financing activities:
Repurchase of common stock		(1,154,396	)		(60,594	)
Proceeds from employee stock plans		50,393			97,673
Principal payments on capital lease obligations		(511	)		(1,440	)
Excess tax benefits from stock-based compensation		99			669
Net cash provided by (used in) financing activities		(1,104,415	)		36,308
Net increase (decrease) in cash and cash equivalents		(996,130	)		537,466
Cash and cash equivalents at beginning of period		1,847,074			1,105,428
Cash and cash equivalents at end of period	$	850,944		$	1,642,894

See accompanying notes to unaudited condensed consolidated financial statements.

4

MARVELL TECHNOLOGY GROUP LTD.

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

Note 1. The Company and Basis of Presentation

The Company

Marvell Technology Group Ltd., a Bermuda company (the “Company”), is a leading global semiconductor provider of high-performance application specific standard products. The Company’s core strength of expertise is the development of complex System-on-a-Chip devices leveraging its extensive technology portfolio of intellectual property in the areas of analog, mixed-signal, digital signal processing and embedded ARM-based microprocessor integrated circuits. The Company develops platforms that it defines as integrated hardware and software that incorporate digital computing technologies designed and configured to provide an optimal computing solution compared to individual components. The Company’s broad product portfolio includes devices for data storage, enterprise-class Ethernet data switching, Ethernet physical-layer transceivers, handheld cellular, Ethernet-based wireless networking, personal area networking, Ethernet-based PC connectivity, control plane communications controllers, video-image processing and power management solutions.

Basis of presentation

The Company’s fiscal year is the 52- or 53-week period ending on the Saturday closest to January 31. In a 52-week year, each fiscal quarter consists of 13 weeks. The additional week in a 53-week year is added to the fourth quarter, making such quarter consist of 14 weeks. Fiscal 2012 and fiscal 2011 are comprised of 52-week periods.

The unaudited interim condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and notes required by GAAP for annual financial statements. In the opinion of management, all adjustments consisting of normal and recurring entries considered necessary for a fair statement of the results for the interim periods have been included in the Company’s balance sheet as of October 29, 2011, the results of its operations for the three and nine months ended October 29, 2011 and October 30, 2010, and its cash flows for the nine months ended October 29, 2011 and October 30, 2010. The January 29, 2011 condensed consolidated balance sheet data was derived from audited consolidated financial statements included in the Company’s Annual Report on Form 10-K for the fiscal year ended January 29, 2011 but does not include all disclosures required for annual periods. Certain reclassifications have been made to conform to the current period’s presentation.

These condensed consolidated financial statements and related notes are unaudited and should be read in conjunction with the Company’s audited financial statements and related notes included in the Company’s Annual Report on Form 10-K for the fiscal year ended January 29, 2011 as filed on March 28, 2011 with the Securities and Exchange Commission. The results of operations for the three and nine months ended October 29, 2011 are not necessarily indicative of the results that may be expected for any other interim period or for the full fiscal year.

Use of estimates

The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates, judgments and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses, and related disclosure of contingent assets and liabilities. On an on-going basis, the Company evaluates its estimates, including those related to performance-based compensation, revenue recognition, including provisions for sales returns and allowances, inventory excess and obsolescence, investment fair values, goodwill and other intangible assets, income taxes, litigation and other contingencies. In addition, the Company uses assumptions when employing the Monte Carlo simulation and Black-Scholes valuation models to calculate the fair value of stock-based awards granted. The Company bases its estimates of the carrying value of certain assets and liabilities on historical experience and on various other assumptions that are believed to be reasonable under the circumstances when these carrying values are not readily available from other sources. Actual results could differ from these estimates, and such differences could affect the results of operations reported in future periods.

Principles of consolidation

The unaudited condensed consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All intercompany accounts and transactions have been eliminated. The functional currency of the Company and its subsidiaries is the United States dollar.

Note 2. Recent Accounting Pronouncements and Accounting Changes

In May 2011, the Financial Accounting Standards Board (“FASB”) issued additional guidance on fair value measurements and related disclosures. The new guidance clarifies the application of existing guidance on fair value measurement for non-financial assets and requires the

5

MARVELL TECHNOLOGY GROUP LTD.

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

disclosure of quantitative information about the unobservable inputs used in a fair value measurement. This guidance is effective on a prospective basis for interim and annual periods beginning after December 15, 2011. The adoption of this guidance during the first quarter of fiscal 2013 will not have any impact on the Company’s financial statements.

In June 2011, the FASB issued an amendment to the guidance regarding the presentation of comprehensive income. The amended guidance gives an entity the option to present the total of comprehensive income, the components of net income, and the components of other comprehensive income either in a single continuous statement of comprehensive income or in two separate but consecutive statements. The amended guidance eliminates the option to present the components of other comprehensive income as part of the statement of changes in stockholders’ equity. The amended guidance also requires presentation of adjustments for items that are reclassified from other comprehensive income to net income in the statement where the components of net income and the components of other comprehensive income are presented. This guidance is effective on a retrospective basis for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2011.

In September 2011, the FASB issued an amendment to the guidance regarding the testing of goodwill for impairment. The amended guidance will allow an entity to first assess qualitative factors to determine whether it is necessary to perform the two-step quantitative goodwill impairment test. An entity no longer will be required to calculate the fair value of a reporting unit unless the entity determines, based on a qualitative assessment, that it is more likely than not that its fair value is less than its carrying amount. The amended guidance is effective for annual and interim goodwill impairment tests performed for fiscal years beginning after December 15, 2011, with early adoption permitted. The Company does not expect to early adopt the amended guidance.

Note 3. Investments

The following tables summarize the Company’s investments (in thousands):

	As of October 29, 2011
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
Short-term investments:
Available-for-sale:
Corporate debt securities	$	812,965	$	2,607	$	(1,676	)	$	813,896
U.S. government and agency securities		758,804		1,334		(280	)		759,858
Total short-term investments	$	1,571,769	$	3,941	$	(1,956	)	$	1,573,754
Long-term investments:
Available-for-sale:
Auction rate securities	$	24,550	$	—	$	(1,332	)	$	23,218
Total long-term investments	$	24,550	$	—	$	(1,332	)	$	23,218
Total investments	$	1,596,319	$	3,941	$	(3,288	)	$	1,596,972

	As of January 29, 2011
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
Short-term investments:
Available-for-sale:
Corporate debt securities	$	648,278	$	3,208	$	(213	)	$	651,273
U.S. government and agency securities		431,174		561		(52	)		431,683
Total short-term investments	$	1,079,452	$	3,769	$	(265	)	$	1,082,956
Long-term investments:
Available-for-sale:
Auction rate securities	$	27,850	$	—	$	(1,624	)	$	26,226
Total long-term investments	$	27,850	$	—	$	(1,624	)	$	26,226
Total investments	$	1,107,302	$	3,769	$	(1,889	)	$	1,109,182

6

MARVELL TECHNOLOGY GROUP LTD.

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

As of October 29, 2011, the Company’s investment portfolio included $24.6 million in par value of auction rate securities. Beginning in February 2008, liquidity issues in the global credit markets resulted in a failure of auction rate securities, as the amount of securities submitted for sale in those auctions exceeded the amount of bids. To estimate the fair value of the auction rate securities since that time, the Company used a discounted cash flow model based on estimated timing and amount of future interest and principal payments, credit quality of the underlying securities and liquidity considerations, the collateralization of underlying security investments, the credit worthiness of the issuer of the securities, the probability of full repayment and other considerations. As of October 29, 2011, the fair value of the auction rate securities was $1.3 million less than the par value and was recorded in long-term investments.

Based on the Company’s assessment of its cash flow projections, a balance of approximately $2.4 billion in cash, cash equivalents and short-term investments and the fact that the Company continues to generate positive cash flow from operations on a quarterly basis, the Company does not anticipate having to sell these securities below par value in order to operate its business. The Company does not have the intent to sell these auction rate securities until recovery. Thus, the Company considers the impairment to be temporary and recorded the unrealized loss to accumulated other comprehensive income (loss), a component of shareholders’ equity.

The contractual maturities of available-for-sale securities at October 29, 2011 and January 29, 2011 are presented in the following table (in thousands):

	October 29, 2011				January 29, 2011
	Amortized Cost		Estimated Fair Value		Amortized Cost		Estimated Fair Value
Due in one year or less	$	601,692	$	602,491	$	560,190	$	560,999
Due between one and five years		970,077		971,263		519,262		521,957
Due over five years		24,550		23,218		27,850		26,226
	$	1,596,319	$	1,596,972	$	1,107,302	$	1,109,182

The following table shows the investments’ gross unrealized losses and fair value, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position (in thousands):

	October 29, 2011
	Less than 12 months					12 months or more					Total
	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
Corporate debt securities	$	250,560	$	(1,676	)	$	—	$	—		$	250,560	$	(1,676	)
U.S. government and agency securities		286,030		(280	)		—		—			286,030		(280	)
Auction rate securities		—		—			23,218		(1,332	)		23,218		(1,332	)
Total securities	$	536,590	$	(1,956	)	$	23,218	$	(1,332	)	$	559,808	$	(3,288	)

	January 29, 2011
	Less than 12 months					12 months or more					Total
	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
Corporate debt securities	$	113,081	$	(213	)	$	—	$	—		$	113,081	$	(213	)
U.S. government and agency securities		91,962		(52	)		—		—			91,962		(52	)
Auction rate securities		—		—			26,226		(1,624	)		26,226		(1,624	)
Total securities	$	205,043	$	(265	)	$	26,226	$	(1,624	)	$	231,269	$	(1,889	)

7

MARVELL TECHNOLOGY GROUP LTD.

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

Note 4. Supplemental Financial Information (in thousands)

Inventories

	October 29, 2011		January 29, 2011
Work-in-process	$	173,899	$	156,108
Finished goods		136,069		89,340
Inventories	$	309,968	$	245,448

Property and equipment, net

	October 29, 2011			January 29, 2011
Machinery and equipment	$	471,973		$	435,900
Computer software		80,358			74,966
Furniture and fixtures		24,044			23,498
Leasehold improvements		35,618			34,142
Buildings		144,596			144,596
Building improvements		42,029			41,200
Land		69,246			69,246
Construction in progress		8,476			8,469
		876,340			832,017
Less: Accumulated depreciation and amortization		(502,712	)		(473,577	)
Property and equipment, net	$	373,628		$	358,440

Other non-current assets

	October 29, 2011		January 29, 2011
Technology and other licenses	$	54,355	$	51,642
Deferred tax assets		25,703		27,671
Investments in privately held companies		6,073		3,950
Deferred compensation		4,956		6,169
Prepayments for foundry capacity		4,725		5,289
Severance fund		2,608		4,819
Other		12,500		11,840
Other non-current assets	$	110,920	$	111,380

Accrued liabilities

	October 29, 2011		January 29, 2011
Accrued rebates	$	25,956	$	32,405
Accrued royalties		14,109		14,018
Accrued legal expense		12,646		8,551
Technology license obligation		6,410		4,850
Customer advances for NRE services		2,377		3,515
Accrued fees for tax, audit and other professional services		1,757		2,125
Income tax payable		1,719		—
Accrued sales/goods and services tax		1,349		3,679
Other		16,348		16,851
Accrued liabilities	$	82,671	$	85,994

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MARVELL TECHNOLOGY GROUP LTD.

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

Other long-term liabilities

	October 29, 2011		January 29, 2011
Technology license obligation	$	12,134	$	19,218
Long-term accrued employee compensation		9,752		9,258
Facilities consolidation		2,233		3,271
Accrued severance		1,990		3,226
Other		8,104		4,367
Other long-term liabilities	$	34,213	$	39,340

Net income per share

The Company reports both basic net income per share, which is based upon the weighted average number of common shares outstanding and diluted net income per share, which is based on the weighted average number of common shares outstanding and dilutive potential common shares. The computations of basic and diluted net income per share are presented in the following table (in thousands, except per share amounts):

	Three Months Ended				Nine Months Ended
	October 29, 2011		October 30, 2010		October 29, 2011		October 30, 2010
Numerator:
Net income	$	195,121	$	255,732	$	534,374	$	681,276
Denominator:
Weighted average common shares outstanding		600,504		649,782		615,987		646,246
Effect of dilutive securities:
Common share options and other		12,995		25,007		15,270		29,777
Weighted average shares — diluted		613,499		674,789		631,257		676,023
Net income per share:
Basic	$	0.32	$	0.39	$	0.87	$	1.05
Diluted	$	0.32	$	0.38	$	0.85	$	1.01

Options to purchase 23.8 million common shares at a weighted average exercise price of $18.26 have been excluded from the computation of diluted net income per share for the three months ended October 29, 2011 because including them would have been anti-dilutive. Options to purchase 17.1 million common shares at a weighted average exercise price of $19.84 have been excluded from the computation of diluted net income per share for the three months ended October 30, 2010 because including them would have been anti-dilutive.

Options to purchase 20.4 million common shares at a weighted average exercise price of $18.92 have been excluded from the computation of diluted net income per share for the nine months ended October 29, 2011 because including them would have been anti-dilutive. Options to purchase 12.5 million common shares at a weighted average exercise price of $21.29 have been excluded from the computation of diluted net income per share for the nine months ended October 30, 2010 because including them would have been anti-dilutive.

In addition, as of October 29, 2011, options to purchase 3.1 million shares that contain a market condition for vesting have been excluded from the computation of diluted net income per share for the three and nine months ended October 29, 2011, as the market value of the Company’s shares as of October 29, 2011 was lower than the required market condition. Refer to “Note 12 – Stock-Based Compensation” for additional details.

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MARVELL TECHNOLOGY GROUP LTD.

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

Comprehensive income

The changes in the components of other comprehensive income were as follows (in thousands):

	Three Months Ended					Nine Months Ended
	October 29, 2011			October 30, 2010		October 29, 2011			October 30, 2010
Net income	$	195,121		$	255,732	$	534,374		$	681,276
Other comprehensive income
Net unrealized gain (loss) on marketable securities		(3,515	)		1,939		(1,519	)		3,795
Net unrealized gain on auction rate securities		248			181		292			234
Net unrealized gain (loss) on cash flow hedges		(2,895	)		951		(160	)		460
Change in other		115			—		—			(2	)
Total comprehensive income	$	189,074		$	258,803	$	532,987		$	685,763

The components of accumulated other comprehensive income (loss) were as follows (in thousands):

	October 29, 2011			January 29, 2011
Unrealized gain on marketable securities	$	1,985		$	3,504
Unrealized loss on auction rate securities		(1,332	)		(1,624	)
Unrealized loss on cash flow hedges		(953	)		(793	)
Other		5			5
Accumulated other comprehensive income (loss)	$	(295	)	$	1,092

Note 5. Derivative Financial Instruments

The Company manages some of its foreign currency exchange rate risk through the purchase of foreign currency exchange contracts that hedge against the short term impact of currency fluctuations. The Company’s policy is to enter into foreign currency forward contracts with maturities generally less than 12 months that mitigate the impact of rate fluctuations on certain local currency denominated operating expenses. All derivatives are recorded at fair value in either prepaid expenses and other current assets or accrued liabilities. The Company reports cash flows from derivative instruments in cash flows provided by operating activities. The Company uses quoted prices to value its derivative instruments.

As of October 29, 2011 and January 29, 2011, the notional amounts of outstanding forward contracts were as follows (in thousands):

	October 29, 2011				January 29, 2011
	Buy Contracts		Sell Contracts		Buy Contracts		Sell Contracts
Israeli shekel	$	67,361	$	—	$	56,360	$	—
Euro		—		—		—		3,698
	$	67,361	$	—	$	56,360	$	3,698

Cash Flow Hedges. The Company designates and documents its foreign currency forward exchange contracts as cash flow hedges for certain operating expenses denominated in Israeli shekels. The Company evaluates and calculates the effectiveness of each hedge at least quarterly. The effective change is recorded in accumulated other comprehensive income and is subsequently reclassified to operating expense when the hedged expense is recognized. Ineffectiveness is recorded in interest and other income (expense), net.

Other Foreign Currency Forward Contracts. The Company enters into foreign currency forward exchange contracts to hedge certain assets and liabilities denominated in various foreign currencies that it does not designate as hedges for accounting purposes. The maturities of these contracts are generally less than 12 months. Gains or losses arising from the remeasurement of these contracts to fair value each period are recorded in interest and other income (loss), net.

The fair value of foreign exchange contract derivatives was not significant as of any period presented.

10

MARVELL TECHNOLOGY GROUP LTD.

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

Note 6. Fair Value Measurements

Fair value is an exit price representing the amount that would be received in the sale of an asset or paid to transfer a liability in an orderly transaction between market participants. As such, fair value is a market-based measurement that should be determined based on assumptions that market participants would use in pricing an asset or a liability. As a basis for considering such assumptions, the accounting guidance establishes a three-tier value hierarchy, which prioritizes the inputs used in the valuation methodologies in measuring fair value:

Level 1 - Observable inputs that reflect quoted prices (unadjusted) for identical assets or liabilities in active markets.

Level 2 - Include other inputs that are directly or indirectly observable in the marketplace.

Level 3 - Unobservable inputs that are supported by little or no market activity.

The fair value hierarchy also requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value.

The Company measures its cash equivalents and marketable securities at fair value. The Company’s cash equivalents and marketable securities are primarily classified within Level 1 with the exception of its investments in auction rate securities, which are classified within Level 3. Cash equivalents and marketable securities are valued primarily using quoted market prices utilizing market observable inputs. The Company’s investments in corporate debt securities are classified within Level 2 as the market inputs to value these instruments consist of market yields, reported trades and broker/dealer quotes. In addition, foreign currency contracts are classified within Level 2 as the valuation inputs are based on quoted prices and market observable data of similar instruments. The Company’s investments in auction rate securities are classified within Level 3 because there are no active markets for the auction rate securities and therefore the Company is unable to obtain independent valuations from market sources. Therefore, the auction rate securities were valued using a discounted cash flow model. Some of the inputs to the cash flow model are unobservable in the market. The total amount of assets measured using Level 3 valuation methodologies represented 0.4% of total assets as of October 29, 2011.

The tables below set forth, by level, the Company’s financial assets that were accounted for at fair value as of October 29, 2011 and January 29, 2011. The tables do not include assets and liabilities that are measured at historical cost or any basis other than fair value (in thousands):

	Level 1		Level 2		Level 3		Portion of Carrying Value Measured at Fair Value at October 29, 2011
Items measured at fair value on a recurring basis:
Assets
Cash equivalents:
Money market funds	$	19,242	$	—	$	—	$	19,242
U.S. government and agency securities		13,000		—		—		13,000
Corporate debt securities				11,499		—		11,499
Time deposit		132,441		—		—		132,441
Short-term investments:
U.S. government and agency securities		759,858		—		—		759,858
Corporate debt securities		—		813,896		—		813,896
Long-term investments:
Auction rate securities		—		—		23,218		23,218
Other non-current assets:
Severance pay fund		868		1,740		—		2,608
Total assets	$	925,409	$	827,135	$	23,218	$	1,775,762
Liabilities
Accrued liabilities:
Forward contracts	$	—	$	797	$	—	$	797
Total liabilities	$	—	$	797	$	—	$	797

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NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

	Level 1		Level 2		Level 3		Portion of Carrying Value Measured at Fair Value at January 29, 2011
Items measured at fair value on a recurring basis:
Assets
Cash equivalents:
Money market funds	$	1,230,616	$	—	$	—	$	1,230,616
U.S. government and agency securities		106,487		—		—		106,487
Corporate debt securities		—		9,797		—		9,797
Time deposit		159,938		—		—		159,938
Short-term investments:
U.S. government and agency securities		431,683		—		—		431,683
Corporate debt securities		—		651,273		—		651,273
Long-term investments:
Auction rate securities		—		—		26,226		26,226
Prepaid expense and other current assets:
Forward contracts		—		166		—		166
Other non-current assets:
Severance pay fund		2,425		2,394		—		4,819
Total assets	$	1,931,149	$	663,630	$	26,226	$	2,621,005
Liabilities
Accrued liabilities:
Forward contracts	$	—	$	804	$	—	$	804
Total liabilities	$	—	$	804	$	—	$	804

The following tables summarize the change in fair value for Level 3 items during the nine months ended October 29, 2011 and October 30, 2010 (in thousands):

	Level 3
Changes in fair value during the nine months ended October 29, 2011 (pre-tax):
Beginning balance at January 30, 2011	$	26,226
Purchases		—
Sales, redemption and settlement		(3,300	)
Unrealized gain included in accumulated other comprehensive income (loss)		292
Ending balance at October 29, 2011	$	23,218

	Level 3
Changes in fair value during the nine months ended October 30, 2010 (pre-tax):
Beginning balance at January 31, 2010	$	39,281
Purchases		—
Sales, redemption and settlement		(8,516	)
Realized loss on sale		(134	)
Unrealized gain included in accumulated other comprehensive income (loss)		234
Ending balance at October 30, 2010	$	30,865

Assets measured and recorded at fair value on a non-recurring basis as of October 29, 2011 and January 29, 2011 were not significant.

Note 7. Business Combination

In April 2011, the Company acquired the PHY business of a company, which specializes in the design of networking devices. Under the purchase method of accounting, the total purchase price was determined to be $16.3 million and was allocated to tangible asset for $1.1 million, intangible assets for $13.6 million and goodwill for $1.6 million.

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MARVELL TECHNOLOGY GROUP LTD.

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

Note 8. Goodwill and Acquired Intangible Assets, Net (in thousands):

Goodwill

The following table summarizes the activity related to the carrying value of goodwill:

Balance at January 29, 2011	$	2,004,833
Additions due to business combinations		4,829
Balance at October 29, 2011	$	2,009,662

Acquired Intangible Assets, Net

		October 29, 2011							January 29, 2011
	Range of Useful Lives	Gross Carrying Amounts		Accumulated Amortization and Write-Offs			Net Carrying Amount		Gross Carrying Amounts		Accumulated Amortization and Write-Offs			Net Carrying Amount
Purchased technology	1 - 7 years	$	739,605	$	(708,691	)	$	30,914	$	726,040	$	(698,877	)	$	27,163
Core technology	1 - 8 years		212,650		(172,222	)		40,428		212,650		(155,359	)		57,291
Trade name	1 - 5 years		350		(328	)		22		350		(299	)		51
Customer contracts	4 - 7 years		187,200		(166,673	)		20,527		187,200		(156,774	)		30,426
In-process research and development	*		10,541		—			10,541		9,700		—			9,700
Total intangible assets, net		$	1,150,346	$	(1,047,914	)	$	102,432	$	1,135,940	$	(1,011,309	)	$	124,631

* Upon completion of the project, the related in-process research and development (“IPR&D”) assets will be amortized over its estimated useful life. If any of the projects are abandoned or the forecast of the project indicates that the fair value is less than the carrying amount, the Company will be required to impair the related IPR&D asset.

Based on the identified intangible assets recorded at October 29, 2011, the future amortization expense excluding IPR&D for the next five fiscal years is as follows (in thousands):

Fiscal year
Remainder of fiscal 2012	$	11,140
2013		41,436
2014		26,753
2015		5,351
2016		2,587
Thereafter		4,624
	$	91,891

Note 9. Restructuring

During the nine months ended October 30, 2010, as a result of the anticipated sale of one of its facilities, the Company classified the carrying value of the building as held for sale within prepaid expenses and other current assets. This resulted in a charge of $1.1 million to write-down the carrying value to fair value in research and development. During the nine months ended October 29, 2011, the Company completed the sale of the building held for sale to an independent third party for $6.8 million, equal to the revised carrying value of the building.

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MARVELL TECHNOLOGY GROUP LTD.

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

In addition, the Company continued to make payments and incur on-going operating expenses from its previously vacated facilities during the three and nine months ended October 29, 2011.

During the nine months ended October 30, 2010, the Company subleased two of its previously vacated facilities and thus recorded an adjustment to the restructuring liabilities.

The following table sets forth an analysis of the components of the restructuring charges and the payments made (in thousands):

	Three Months Ended						Nine Months Ended
	October 29, 2011			October 30, 2010			October 29, 2011			October 30, 2010
Restructuring liabilities, beginning of period	$	3,209		$	4,842		$	3,306		$	5,397
Facilities and related charges		105			395			1,291			2,741
Equipment and other related charges		—			94			—			94
Non-cash adjustment		(96	)		185			(491	)		(1,272	)
Net cash payments		(301	)		(1,650	)		(1,189	)		(2,993	)
Adjustments to previous assumptions		—			(230	)		—			(331	)
Restructuring liabilities, end of period	$	2,917		$	3,636		$	2,917		$	3,636

The following table presents details of restructuring charges by functional line item (in thousands):

	Three Months Ended				Nine Months Ended
	October 29, 2011		October 30, 2010		October 29, 2011		October 30, 2010
Research and development	$	1	$	187	$	308	$	1,686
Selling and marketing		—		—		—		—
General and administrative		104		72		983		818
	$	105	$	259	$	1,291	$	2,504

The remaining facility lease charges included in the restructuring liabilities will be paid out through fiscal 2018.

Note 10. Commitments and Contingencies

Purchase commitments

Under the Company’s manufacturing relationships with its foundry partners, cancellation of all outstanding purchase orders are allowed but require payment of all costs and expenses incurred through the date of cancellation. As of October 29, 2011, these foundries had incurred approximately $293.5 million of manufacturing costs and expenses relating to the Company’s outstanding purchase orders.

Intellectual property indemnification

The Company has agreed to indemnify certain customers for claims made against the Company’s products, where such claims allege infringement of third party intellectual property rights, including, but not limited to, patents, registered trademarks, and/or copyrights. Under the aforementioned indemnification clauses, the Company may be obligated to defend the customer and pay for the damages awarded against the customer under an infringement claim as well as the customer’s attorneys’ fees and costs. The Company’s indemnification obligations generally do not expire after termination or expiration of the agreement containing the indemnification obligation. In certain cases, there are limits on and exceptions to the Company’s potential liability for indemnification. Although historically the Company has not made significant payments under these indemnification obligations, the Company cannot estimate the amount of potential future payments, if any, that it might be required to make as a result of these agreements. The maximum potential amount of any future payments that the Company could be required to make under these indemnification obligations could be significant.

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MARVELL TECHNOLOGY GROUP LTD.

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

Contingencies

IPO Securities Litigation. In 2001, two putative class action lawsuits were filed in the United States District Court for the Southern District of New York concerning certain alleged underwriting practices related to the Company’s initial public offering (the “IPO”) on June 29, 2000. The actions were consolidated and a consolidated complaint was filed, naming as defendants certain investment banks that participated in the IPO, the Company, and two of its officers, one of whom is also a director. Plaintiffs claim that defendants violated certain provisions of the Securities Act of 1933, as amended, and the Securities Exchange Act of 1934, as amended (the “Exchange Act”), by allegedly failing to disclose that the underwriters received “excessive” and undisclosed commissions and entered into unlawful “tie-in” agreements with certain of their clients. The consolidated complaint seeks unspecified damages, interest and fees. In addition, this case has been coordinated with hundreds of other lawsuits filed by plaintiffs against underwriters and issuers for approximately 300 other IPOs. Defendants in the coordinated proceedings moved to dismiss the actions. In February 2003, the trial court granted the motions in part and denied them in part, allowing certain claims to proceed.

The parties have reached a global settlement of the coordinated litigation. Under the settlement, the insurers will pay the full amount of settlement share allocated to the Company, and the Company will bear no financial liability. The Company and other defendants will receive complete dismissals from the case. In 2009, the district court issued an order of final approval of the settlement. Certain objectors filed appeals, a number of which were dismissed by agreement or by the appellate court. The current matter on appeal is the district court’s August 2011 ruling that the remaining appellate was not a class member with standing to object to the settlement. If for any reason the settlement does not become effective, the Company believes it has meritorious defenses to the claims against it and intends to defend the action vigorously.

Section 16(b) Litigation. On October 9, 2007, a purported shareholder of the Company filed a complaint for violation of Section 16(b) of the Exchange Act, which prohibits short swing trading, against the Company’s IPO underwriters. The complaint Vanessa Simmonds v. The Goldman Sachs Group, et al., Case No. C07-1632 filed in District Court for the Western District of Washington, seeks the recovery of short swing profits. The Company is named as a nominal defendant only, and no recovery is sought from the Company. In March 2009, the district court granted a motion to dismiss filed by the underwriter defendants, which caused the case against the Company to be dismissed. The plaintiff appealed to the U.S. Court of Appeals for the Ninth Circuit, and in December 2010, the Ninth Circuit reversed the dismissal and remanded to the district court. On January 25, 2011, the Ninth Circuit entered an order staying the mandate pending the filing of petitions for writ of certiorari in the United States Supreme Court by the underwriter defendants. No discovery has taken place. Both sides have filed petitions for writ of certiorari to the United States Supreme Court. The Supreme Court denied plaintiff’s writ, but granted the underwriters’ writ, which argued that the case should have been dismissed on statute of limitations grounds. A decision is expected during the on-going term of the court, which ends in June 2012. If the Supreme Court reverses the Ninth Circuit, the case will be concluded. If the Supreme Court affirms the Ninth Circuit, the case will be remanded to the District Court for further proceedings.

Jasmine Networks Litigation. On September 12, 2001, Jasmine Networks, Inc. (“Jasmine”) filed a lawsuit in the Santa Clara County Superior Court alleging claims against Marvell Semiconductor, Inc. (“MSI”) and three of its officers for allegedly improperly obtaining and using information and technologies during the course of the negotiations with its personnel regarding the potential acquisition of certain Jasmine assets by MSI.

The case proceeded to trial on September 20, 2010. On November 24, 2010, a Santa Clara County jury returned a verdict in favor of MSI on all claims. On January 7, 2011, the court entered judgment in MSI’s favor. Pursuant to California Civil Procedure provisions, Jasmine filed motions for a new trial and for a judgment notwithstanding the verdict. These motions were heard by the court on February 25, 2011 and denied in written orders. Jasmine has appealed and MSI is contesting the appeal vigorously.

Wage and Hour Class Action. On October 18, 2006, Dan Holton (“Holton”), a former employee of MSI, filed a civil complaint in Santa Clara County Superior Court. Holton alleges that MSI misclassified him as an exempt employee. Holton claims that due to its misclassification MSI owes him unpaid wages for overtime, penalties for missed meal periods, and various other penalties under the California Labor Code, as well as interest. Holton also pursues a cause of action for unfair business practices under the California Business & Profession Code. Holton brought his complaint as a class action. On July 8, 2009, the court granted certification of the following class: “All Individual Contributor Engineers who held the title of PCB Designer, Associate Engineer, Engineer, Staff Engineer and Senior Engineers, who at any time during the class period while holding these positions did not have a degree above a baccalaureate degree nor a degree above a baccalaureate degree in a field of science related to the work performed, and worked for MSI in California, at any time from October 19, 2002 through the present.” MSI disputes all of plaintiff’s class claims. On June 23, 2011, MSI filed a motion for decertification of the class, which was heard by the court on August 25, 2011. On September 6, 2011 the court granted decertification of the plaintiffs’ meal period claims and denied the remainder of MSI’s motion for decertification of the class. On September 19, 2011 the parties attended a mediation and subsequently agreed in principal to settle this matter. On November 23, 2011, the parties executed a settlement agreement and plaintiffs filed their motion for preliminary approval of the settlement. The anticipated settlement amount has been recorded in the Company’s financial statements for the three months ended October 29, 2011 and is not significant to the results of operations for the three and nine months ended October 29, 2011.

15

MARVELL TECHNOLOGY GROUP LTD.

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

Carnegie Mellon Litigation. On March 6, 2009, Carnegie Mellon University (“CMU”) filed a complaint in the United States District Court for the Western District of Pennsylvania naming MSI and the Company as defendants and alleging patent infringement. CMU has asserted two patents (U.S. Patent Nos. 6,201,839 and 6,438,180) purportedly relating to read-channel integrated circuit devices and the hard disk drive products incorporating such devices. The complaint seeks unspecified damages and an injunction. On June 1, 2009, MSI and the Company filed their answers and MSI filed counterclaims to the complaint seeking declaratory judgments of non-infringement and invalidity as to both of the asserted patents. The claim construction hearing was held on April 12 and 13, 2010, and a ruling was issued on October 1, 2010. On April 29, 2010, MSI and the Company filed their amended answers and counterclaims. The Company and MSI filed a motion for partial summary judgment of invalidity on December 22, 2010, which was denied on September 28, 2011. MSI and the Company filed a second motion for partial summary judgment of invalidity on November 2, 2011. The court has scheduled oral argument on that motion for December 6, 2011. Trial is set for November 26, 2012. MSI and the Company believe that they do not infringe any valid and enforceable claims of the asserted CMU patents and intend to contest this action vigorously.

Xpoint Patent Litigation. On August 21, 2009, Xpoint Technologies, Inc. filed a complaint in the United States District of Delaware, which names the Company, MSI and 36 other companies as defendants. The complaint alleged infringement of U.S. Patent No. 5,913,028, which purportedly relates to data traffic delivery. The complaint seeks unspecified damages and an injunction. A first amended complaint was filed on September 18, 2009 and a second amended complaint was filed on August 20, 2010. On October 28, 2009, the Company was dismissed from the lawsuit. On April 20, 2011, MSI was dismissed from the lawsuit.

USEI Litigation. On October 9, 2009, U.S. Ethernet Innovations, LLC (“USEI”) filed a complaint in the Eastern District of Texas, in which USEI has accused a number of system manufacturers, including the Company’s customers, of patent infringement (the “USEI litigation”). Specifically, USEI has asserted that these customers infringe U.S. Patent Nos. 5,307,459, 5,434,872, 5,732,094 and 5,299,313 (collectively, the “USEI patents in suit”), which purportedly relate to Ethernet technologies. The complaint seeks unspecified damages and an injunction.

On May 4, 2010, MSI filed a motion to intervene in the USEI litigation, which was granted on May 19, 2010. On July 13, 2010, the court issued an order granting the Defendants’ motion to transfer the action to the Northern District of California; the case was formally transferred on August 23, 2010. On October 21, 2011, the court conducted a claim construction hearing. The court has not yet set dates for trial. MSI believes that it does not infringe any valid and enforceable claim of the USEI patents in suit, and intends to litigate this action vigorously.

Lake Cherokee Patent Litigation. On June 30, 2010, Lake Cherokee Hard Drive Technologies, L.L.C. filed a complaint in the United States District Court in the Eastern District of Texas. The complaint names MSI and seven other defendants, and alleges infringement of U.S. Patent Nos. 5,844,738 and 5,978,162 (collectively, the “Lake Cherokee patents in suit”). The Lake Cherokee patents in suit purportedly relate to read-channel integrated circuit devices, and allegedly, to certain unspecified hard disk drive products incorporating such devices. The complaint seeks unspecified damages and a permanent injunction. MSI filed its answer and counterclaims to the complaint on September 13, 2010. Defendants filed a motion to transfer on April 1, 2011. Lake Cherokee filed an amended complaint on April 21, 2011. MSI filed its answer and counterclaims to the amended complaint on May 9, 2011. A Markman hearing is scheduled for May 23, 2012, and trial is set for August 5, 2013. MSI intends to vigorously defend this action.

APT Patent Litigation. On January 18, 2011, Advanced Processor Technologies, LLC, a subsidiary of Acacia Research Corp., filed a complaint in the United States District Court in the Eastern District of Texas. The complaint names MSI and eight other defendants and alleges infringement of U.S. Patent Nos. 6,047,359 (“’359 patent”) and 5,796,978 (“’978 patent”). The asserted patents purportedly relate to microprocessor technologies. The complaint seeks unspecified damages and a permanent injunction. A first amended complaint was filed on January 26, 2011. The first amended complaint continues to assert the ‘359 patent against MSI, but appears to no longer assert the ‘978 patent against MSI. MSI filed its answer and counterclaims on April 15, 2011. MSI intends to vigorously defend this action. A claim construction hearing is scheduled for December 4, 2013, and jury selection is set for July 7, 2014.

LAMD Patent Litigations. On October 11, 2010, Marvell International Ltd. (“MIL”) filed a complaint against Link-A-Media Devices Corporation (“LAMD”) in the United States District Court for the District of Delaware. The complaint asserts that LAMD infringes its U.S. Patent Nos. 7,328,395, 7,751,138, 7,099,411 and 7,228,485. On June 30, 2011, MIL filed a motion to amend its complaint to add U.S. Patent Nos. 6,903,448 and 7,528,013. The complaint seeks unspecified damages and a permanent injunction. A claim construction hearing is scheduled for October 2012, and trial is set for January 2013.

On February 10, 2011, LAMD filed a complaint against MSI in the United States District Court for the Northern District of California. The complaint asserts that MSI infringes LAMD’s U.S. Patent No. 7,590,927. The complaint seeks unspecified damages and a permanent injunction. MSI filed its answer and counterclaims on May 3, 2011. MSI believes that it does not infringe any valid and enforceable claim of the LAMD patent in suit. A claim construction hearing is scheduled for June 2012, and trial is set for February 2013.

On November 21, 2011, MIL and MSI obtained a favorable settlement with LAMD relating to the Delaware and California cases, and expect that the cases will be dismissed soon.

16

MARVELL TECHNOLOGY GROUP LTD.

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

MOSAID Litigation. On March 16, 2011, MOSAID Technologies Inc. filed suit in the United States District for the Eastern District of Texas against MSI and 16 other companies. The complaint alleges that defendants’ products, which operate in compliance with the IEEE 802.11a, 802.11b, 802.11g, and 802.11n standards, infringe the six asserted patents (U.S. Patent Nos. 5,131,006; 5,151,920; 5,422,887; 5,706,428; 6,563,768; 6,992,972). MSI filed its answer and counterclaims on June 9, 2011. A claim construction hearing is scheduled for February 18, 2014, and jury selection is set for August 4, 2014. MSI intends to vigorously defend this action.

Azure Networks Litigation. On March 22, 2011, Azure Networks LLC and Tri-County Excelsior Foundation filed suit in the Eastern District of Texas against MSI and eight other companies. The suit alleges that MSI’s Bluetooth products infringe its U.S. Patent No. 7,756,129. MSI filed its answer and counterclaims on July 20, 2011. A claim construction hearing is scheduled for November 29, 2012, and trial is set for November 12, 2013. MSI intends to vigorously defend this action.

Power Management Systems Litigation. On August 22, 2011, Power Management Systems LLC, a subsidiary of Acacia Research Corp., filed a complaint against MSI and three other defendants, in the federal district court for the District of Delaware. The complaint asserts U.S. Patent No. 5,504,909, which purportedly relates to a power management apparatus, against various products. The complaint seeks unspecified damages. MSI intends to vigorously defend this action.

HSM/TPL Litigation. On September 1, 2011, HSM Portfolio, LLC and Technology Properties Limited, LLC filed a complaint against the Company and its subsidiary, Marvell Semiconductor, Ltd. (“MSL”), in the federal district court for the District of Delaware. The complaint also named numerous other defendants. The complaint asserts U.S. Patent No. 5,030,853, purportedly relating to high speed logic and memory circuitry, against various products. The complaint seeks unspecified damages. The Company and MSL intend to vigorously defend this action.

General. The Company is also party to various other legal proceedings and claims arising in the normal course of business. The legal proceedings and claims described above could result in substantial costs and could divert the attention and resources of the Company’s management. Although the legal responsibility and financial impact with respect to each of these proceedings and claims cannot currently be ascertained, an unfavorable outcome in any of such actions could have a material adverse effect on the Company’s cash flows. As to each of the ongoing legal matters mentioned above, the Company is currently unable to estimate a possible loss or range of loss, if any. Litigation is subject to inherent uncertainties and unfavorable rulings could occur. An unfavorable ruling in litigation could require the Company to pay damages or one-time license fees or royalty payments and could prevent the Company from manufacturing or selling some of its products or limit or restrict the type of work that employees involved in such litigation may perform for the Company, any of which could adversely affect financial results in future periods. The Company believes that it competes lawfully and that its marketing, business and intellectual property benefit is customers and shareholders, and it will continue to conduct a vigorous defense in these proceedings. There can be no assurance that these matters will be resolved in a manner that is not adverse to the Company’s business, financial condition, results of operations or cash flows.

Indemnities, Commitments and Guarantees

During its normal course of business, the Company has made certain indemnities, commitments and guarantees under which it may be required to make payments in relation to certain transactions. These indemnities include intellectual property indemnities to the Company’s customers in connection with the sales of its products, indemnities for liabilities associated with the infringement of other parties’ technology based upon the Company’s products, indemnities to various lessors in connection with facility leases for certain claims arising from such facility or lease, and indemnities to directors and officers of the Company to the maximum extent permitted under the laws of Bermuda. In addition, the Company has contractual commitments to various customers, which could require the Company to incur costs to repair an epidemic defect with respect to its products outside of the normal warranty period if such defect were to occur. The duration of these indemnities, commitments and guarantees varies, and in certain cases, is indefinite. The majority of these indemnities, commitments and guarantees do not provide for any limitation of the maximum potential future payments that the Company could be obligated to make. The Company has not recorded any liability for these indemnities, commitments and guarantees in the accompanying Consolidated Balance Sheets. The Company does, however, accrue for losses for any known contingent liability, including those that may arise from indemnification provisions, when future payment is probable.

Note 11. Shareholders’ Equity

Stock plans

During the three months ended April 30, 2011, the Company issued 3.1 million stock options with a market price condition for a group of senior employees. The Company believes that such awards better align the interests of those employees with the interests of its shareholders. If the market price condition is not met within five years from the date of grant, the options automatically expire.

17

MARVELL TECHNOLOGY GROUP LTD.

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

Activity under the Company’s stock option plans for the nine months ended October 29, 2011 is summarized below (in thousands, except per share amounts):

	Time-Based Options					Market-Based Options					Total
	Options Outstanding			Weighted Average Exercise Price		Options Outstanding			Weighted Average Exercise Price		Options Outstanding			Weighted Average Exercise Price
Balance at January 29, 2011		56,325		$	11.96		—		$	—		56,325		$	11.96
Granted		3,234		$	15.42		3,149		$	15.43		6,383		$	15.42
Canceled/Forfeited		(1,325	)	$	14.68		(25	)	$	15.43		(1,350	)	$	14.69
Exercised		(3,166	)	$	7.85		—		$	—		(3,166	)	$	7.85
Balance at October 29, 2011		55,068		$	12.33		3,124		$	15.43		58,192		$	12.50
Vested or expected to vest at October 29, 2011		54,077		$	12.31		2,646		$	15.43		56,723		$	12.46
Exercisable at October 29, 2011		42,054		$	12.55		—		$	—		42,054		$	12.55

The aggregate intrinsic value and weighted average remaining contractual term of time-based stock options vested and expected to vest at October 29, 2011 was $190.5 million and 4.7 years, respectively.

The aggregate intrinsic value and weighted average remaining contractual term of market-based stock options vested and expected to reach the end of the vesting period at October 29, 2011 was $0 and 9.5 years, respectively.

The aggregate intrinsic value is calculated based on the Company’s closing stock price as reported on the NASDAQ Global Select Market for all in-the-money options as of October 28, 2011.

As of October 29, 2011, compensation costs related to stock options and restricted stock units not yet recognized amounted to $176.2 million.

The unamortized compensation expense for time-based and market-based stock options will be amortized on a straight-line basis and is expected to be recognized over a weighted-average period of 1.9 years and 2.2 years, respectively. The unamortized compensation expense for restricted stock units will be amortized on a straight-line basis and is expected to be recognized over a weighted-average period of 1.6 years. Historically, the Company issued new shares to satisfy stock option exercises.

Included in the following table is activity related to the non-vested portion of the restricted stock units as follows (in thousands, except for prices):

	Restricted Stock Units Outstanding			Weighted Average Grant Date Fair Value
Balance at January 29, 2011		5,486		$	18.75
Granted		6,477		$	15.91
Released		(1,320	)	$	19.62
Canceled/Forfeited		(566	)	$	16.88
Balance at October 29, 2011		10,077		$	16.91

Employee stock purchase plan

The 2000 Employee Stock Purchase Plan, as amended and restated on October 22, 2009 (the “Purchase Plan”), had 20.7 million common shares reserved for issuance thereunder as of October 29, 2011.

During the three and nine months ended October 29, 2011, the Company issued none and 2.4 million shares at a weighted-average price of $12.57, respectively, under the Purchase Plan. During the three and nine months ended October 30, 2010, the Company issued none and 5.4 million shares, respectively, at a weighted-average price of $5.17 under the Purchase Plan. As of October 29, 2011, there was $1.7 million of unrecognized compensation cost related to the Purchase Plan.

On October 31, 2011, the Company amended and restated the Purchase Plan (the “Restated Purchase Plan”). Pursuant to the terms of the Restated Purchase Plan, the offering period for the stock purchase was changed from six months to 24 months. This change will be effective for the offering beginning in December 2011 and is applicable for each successive offering period thereafter. Offering and purchase periods will

18

MARVELL TECHNOLOGY GROUP LTD.

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

continue to begin on December 8 and June 8 of each year. Participants enrolled in the new 24-month offering periods will continue in an offering period until the earlier of the end of the offering period or in the event the offering period is reset. A reset occurs if the fair market value of the Company’s common shares on any purchase date is less than it was on the first day of the offering period. Participants in the new 24-month offering periods will be granted the right to purchase common shares at a price per share that is 85% of the lesser of the fair market value of the shares at (i) the participant’s entry date into the two-year offering period or (ii) the end of each six-month purchase period within the offering period.

Stock Repurchase Program

In August 2010, the Company announced that its board of directors had authorized a stock repurchase program of up to $500 million of the Company’s common shares in open market, privately negotiated or block transactions. In March 2011, the Company announced that its board of directors authorized the Company to repurchase up to an additional $500 million, for a total of $1 billion, of its outstanding common shares. In July 2011, the Company announced that its board of directors authorized the Company to repurchase up to an additional $500 million of its outstanding common shares under its share repurchase program, for a total of $1.5 billion. The repurchase program is subject to market conditions and other factors and does not obligate the Company to repurchase any dollar amount or number of its common shares. The program may be extended, modified, suspended or discontinued at any time.

The Company repurchased 15 million shares for $215.2 million in cash during the three months ended October 29, 2011 and repurchased 74.3 million shares for $1.2 billion in cash during the nine months ended October 29, 2011. The Company repurchased 3.6 million shares for $60.6 million in cash during the three and nine months ended October 30, 2010. The repurchased shares were retired immediately after the repurchases were completed.

As of October 29, 2011, the Company had completed share repurchases totaling $1.24 billion under this stock repurchase program, with $258.1 million remaining available for repurchase under the program. Subsequent to the third fiscal quarter and through November 25, 2011, the Company repurchased an additional 8.5 million shares for $119.5 million at an average price per share of $14.10, bringing its total repurchases under the repurchase program to $1.36 billion.

Note 12. Stock-Based Compensation

The following table presents details of stock-based compensation expenses by functional line item (in thousands):

	Three Months Ended				Nine Months Ended
	October 29, 2011		October 30, 2010		October 29, 2011		October 30, 2010
Cost of goods sold	$	1,940	$	1,818	$	5,551	$	5,746
Research and development		21,905		19,795		63,626		60,735
Selling and marketing		3,402		3,208		9,263		8,778
General and administrative		3,364		4,720		10,006		11,867
	$	30,611	$	29,541	$	88,446	$	87,126

Stock-based compensation of $1.5 million was capitalized in inventory as of October 29, 2011 and January 29, 2011.

Valuation Assumptions

The following weighted average assumptions were used for each respective period to calculate the fair value of each time-based equity award on the date of grant using the Black-Scholes option pricing model and of each market-based equity award using a Monte Carlo simulation model:

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MARVELL TECHNOLOGY GROUP LTD.

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

Time-based Stock Options

	Three Months Ended						Nine Months Ended
	October 29, 2011			October 30, 2010			October 29, 2011			October 30, 2010
Estimated fair value	$	5.97		$	7.40		$	6.08		$	9.34
Volatility		49	%		53	%		43	%		53	%
Expected term (in years)		4.8			4.7			4.8			4.7
Risk-free interest rate		1.0	%		1.4	%		2.0	%		2.2	%
Dividend yield		—			—			—			—

Market-based Stock Options

	Three and  Nine Months Ended
	October 29, 2011
Estimated fair value	$	5.08
Expected Volatility		42	%
Risk-free interest rate		0.85 - 3.59	%
Dividend yield		—

The fair value of each market-based option award is estimated on the date of grant using a Monte Carlo simulation model that uses the assumptions noted in the above table, including the same volatility applied to the Company’s time-based options. Because a Monte Carlo simulation model incorporates ranges of assumptions for inputs, those ranges are disclosed where applicable. The Company uses historical data to estimate employee termination within the valuation model. The expected term of options granted of 2.66 years was derived from the output of the valuation model and represents the period of time that options granted are expected to be outstanding.

Employee Stock Purchase Plan

	Three and Nine Months Ended
	October 29, 2011			October 30, 2010
Estimated fair value	$	4.09		$	5.14
Volatility		46	%		53	%
Expected term (in years)		0.5			0.5
Risk-free interest rate		0.2	%		0.2	%
Dividend yield		—			—

The expected volatility for awards granted during the three and nine months ended October 29, 2011 is based on an equally weighted combination of historical stock price volatility and implied volatility derived from traded options on the Company’s stock in the marketplace. The expected volatility for awards granted during the three and nine months ended October 30, 2010 is based solely on historical stock price volatility. The calculation of expected volatility for previous periods was also based solely on historical stock price volatility. The Company believes that the combination of historical volatility and implied volatility provides a better estimate of future stock price volatility.

Note 13. Income Tax

During the three months ended October 29, 2011 and October 30, 2010, the Company’s effective tax rate was an income tax provision of 2.0% and 0.6%, respectively. During the nine months ended October 29, 2011 and October 30, 2010, the Company’s effective tax rate was an income tax provision of 1.7% and 0.4%, respectively. The income tax provision for these periods was affected by non-tax-deductible expenses such as stock-based compensation expense and the amortization of acquired intangibles.

During the three months ended October 29, 2011, the provision for income taxes consisted of the current income tax liability of $6.0 million, and $0.8 million consisting mostly of a tax provision-to-tax return adjustment. These amounts were partially offset by a net reduction of $2.8 million in unrecognized tax benefits. The reduction in unrecognized tax benefits was driven by $4.6 million due to expiration of the statute of limitations in a non-U.S. jurisdiction, offset by new unrecognized tax benefits of $1.8 million due to current year estimates. During the three months ended October 30, 2010, the provision for income taxes was impacted by the current income tax liability of $5.4 million, a reduction of unrecognized tax benefits for $2.0 million due to the expiration of the statute of limitations in a non-U.S. jurisdiction, an increase in unrecognized tax benefits of $1.9 million due to current year estimates, $3.4 million income tax benefit due to release of valuation allowance from the completion of an audit, $1.8 million benefit for a ruling denial related to our supply chain structure and a $1.5 million increase in a U.S. subsidiary due the defeat of a state proposition.

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MARVELL TECHNOLOGY GROUP LTD.

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

During the nine months ended October 29, 2011, the provision for income taxes consisted of the current income tax liability of $14.3 million, a reduction of unrecognized tax benefits of $11.5 million due to the expiration of the statute of limitations in multiple jurisdictions, an increase in unrecognized tax benefits of $5.5 million, $0.8 million consisting mostly of a tax provision-to-tax return adjustment and a settlement of a non-U.S. audit for $0.2 million. During the nine months ended October 30, 2010, the provision for income taxes was impacted by the current income tax liability of $12.5 million, a reduction of unrecognized tax benefits of $10.7 million due to the expiration of the statute of limitations in multiple jurisdictions, an increase in unrecognized tax benefits of $5.4 million dollars, a decrease in deferred tax asset of $1.5 million related to employee stock options for a non-U.S. subsidiary, $1.0 million withholding tax on the disposition of an investment, $3.4 million income tax benefit due to release of valuation allowance from the completion of an audit, $1.8 million benefit for a ruling denial related to our supply chain structure and a $1.5 million increase in a U.S. subsidiary due to the defeat of a state proposition.

During the next 12 months, it is reasonably possible that the amount of unrecognized tax benefits could decrease due to potential settlement with tax authorities and the expiration of applicable statutes of limitations. However, the amount cannot be reasonably estimated as the company will have negotiations with various tax authorities throughout the year.

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Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

This Quarterly Report on Form 10-Q contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended (the “Securities Act”), and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), which are subject to the “safe harbor” created by those sections. These statements involve known and unknown risks, uncertainties and other factors, which may cause our actual results to differ materially from those implied by the forward-looking statements. Words such as “anticipates,” “expects,” “intends,” “plans,” “believes,” “seeks,” “estimates,” “can,” and similar expressions identify such forward-looking statements. We make a number of forward-looking statements that relate to future periods and include statements relating to our anticipation that the rate of new orders and shipments may vary significantly from quarter to quarter; our expectations regarding industry trends; our expectations regarding the impact of the flooding in Thailand; our expectations regarding our inventory levels; our expectations regarding the amount of our future sales in Asia; our expectations regarding TD handset growth in China; our expectations regarding competition; our expectations relating to the protection of our intellectual property; our expectations regarding the amount of customer concentration in the future; our plans and expectations regarding our auction rate securities; our expectations regarding acquisitions, investments, strategic alliances and joint ventures; our expectations regarding net revenue, cost of goods sold as a percentage of revenue and operating expenses for the fourth quarter ending January 28, 2012 compared with the third quarter ended October 29, 2011; our expectations regarding the impact of legal proceedings and claims; our expectations regarding the adequacy of our capital resources, capital expenditures, investment requirements and commitments to meet our capital needs for the next 12 months; our ability to attract and retain highly skilled personnel; our expectations regarding the growth in business and operations; our plan regarding forward exchange contracts and the effect of foreign exchange rates; our expectations regarding unrecognized tax benefits; the effect of recent accounting pronouncements and changes in taxation rules; our expectation regarding the effectiveness of our hedges of foreign currency exposures; our expectations that quarterly operating results will fluctuate from quarter to quarter; our expectations regarding the current economic environment; our expectations regarding arrangements with suppliers; our expectations regarding our ability to develop and introduce new products and achieve market acceptance of our products; our expectations regarding pricing; our expectations regarding demand for our products and the impact of seasonality on demand; our expectations regarding defects; our expectations regarding the implementation and improvement of operational and financial systems, as well as the implementation of additional procedures and other internal management systems; our expectations regarding gross margin and the events that may cause gross margin to fluctuate; our expectations to transition our semiconductor products to increasingly smaller line width geometries; our expectations regarding the portion of our operations and sales outside of the United States; our expectations regarding the adequacy of our internal control over financial reporting; our expectations regarding future impairment review of our goodwill and intangible assets; and the anticipated features and benefits of our technology solutions. These forward-looking statements are subject to risks and uncertainties that could cause actual results to differ materially from those indicated in the forward-looking statements. Factors that could cause actual results to differ materially from those predicted, include but are not limited to, the impact of international conflict and continued economic volatility in either domestic or foreign markets; our dependence upon the hard disk drive and mobile and wireless markets, which are highly cyclical; the impact of the flooding in Thailand; our ability to successfully compete in the markets in which we serve; our ability to scale our operations in response to changes in demand for existing or new products and services; our maintenance of an effective system of internal controls; our dependence on a small number of customers; our ability and our customers’ ability to develop new and enhanced products; our success in integrating businesses we acquire and the impact such acquisitions may have on our operating results; our ability to estimate customer demand and future sales accurately; the success of our strategic relationships; our reliance on independent foundries and subcontractors for the manufacture, assembly and testing of our products; our ability to manage future growth; the development and evolution of markets for our integrated circuits; our ability to protect our intellectual property; the impact of any change in our application of the United States federal income tax laws and the loss of any beneficial tax treatment that we currently enjoy; the impact of changes in international financial and regulatory conditions; the impact of lengthy and expensive product sales cycles; and the outcome of pending or future litigation and legal proceedings. Additional factors which could cause actual results to differ materially include those set forth in the following discussion, as well as the risks discussed in Part II, Item 1A, “Risk Factors,” and other sections of this Quarterly Report on Form 10-Q. These forward-looking statements speak only as of the date hereof. Unless required by law, we undertake no obligation to update any forward-looking statements.

Overview

We are a leading global semiconductor provider of high-performance application-specific standard products. Our core strength of expertise is the development of complex System-on-a-Chip (“SOC”) devices leveraging our extensive technology portfolio of intellectual property in the areas of analog, mixed-signal, digital signal processing and embedded ARM-based microprocessor integrated circuits. We also develop platforms that we define as integrated hardware and software that incorporate digital computing technologies designed and configured to provide an optimized computing solution compared to individual components. Our broad product portfolio includes devices for data storage, enterprise-class Ethernet data switching, Ethernet physical-layer transceivers, handheld cellular, Ethernet-based wireless networking, personal area networking, Ethernet-based PC connectivity, control plane communications controllers, video-image processing and power management solutions. Our products serve diverse applications used in carrier, metropolitan, enterprise and PC-client data communications and storage systems. Additionally, we serve the consumer electronics market for the convergence of voice, video and data applications. We are a fabless integrated circuit company, which means that we rely on independent, third party contractors to perform manufacturing, assembly and test functions. This approach allows us to focus on designing, developing and marketing our products and significantly reduces the amount of capital we need to invest in manufacturing products.

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An increasing number of our products are being incorporated into consumer electronics products, including smartphones, printers, gaming devices and tablets, which are subject to significant seasonality and fluctuations in demand. Due to holiday and back to school buying trends, we expect these seasonal demand patterns generally will negatively impact our results in the first and fourth quarter and positively impact our results in the second and third quarter of our fiscal years.

A portion of our sales have historically been made on the basis of purchase orders rather than long-term agreements. The sales cycle for our products is long, which may cause us to experience a delay between the time we incur expenses and the time revenue is generated from these expenditures. We anticipate that the rate of new orders may vary significantly from quarter to quarter. Consequently, if anticipated sales and shipments in any quarter do not occur when expected, expenses and inventory levels could be disproportionately high, and our operating results for that quarter and future quarters may be adversely affected.

Our fiscal year is the 52- or 53-week period ending on the Saturday closest to January 31. In a 52-week year, each fiscal quarter consists of 13 weeks. The additional week in a 53-week year is added to the fourth quarter, making such quarter consist of 14 weeks. Fiscal 2012 and fiscal 2011 are comprised of 52-week periods. In this Quarterly Report on Form 10-Q, we refer to the fiscal year ended January 30, 2010 as fiscal 2010, the fiscal year ended January 29, 2011 as fiscal 2011 and the fiscal year ending January 28, 2012 as fiscal 2012.

Critical Accounting Policies and Estimates

The preparation of financial statements in conformity with accounting principles generally accepted in the United States (“GAAP”) requires management to make estimates, judgments and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses and related disclosure of contingent assets and liabilities. Actual results could differ from these estimates, and such differences could affect the results of operations reported in future periods. For a description of our critical accounting policies and estimates, please refer to the “Critical Accounting Policies and Estimates” section of our Management’s Discussion and Analysis of Financial Condition and Results of Operations contained in our Annual Report on Form 10-K for the year ended January 29, 2011.

Results of Operations

During the three months ended October 29, 2011, our net revenue grew six percent sequentially, with growth driven by our mobile and wireless end markets, primarily as a result of the continued adoption of the TD mobile standard in China. During our third fiscal quarter, we also recorded our first revenues related to the products designed into customers’ WCDMA handsets targeted at several of the emerging markets around the world. We believe that these two areas represent significant growth opportunities for us. Although our storage business was impacted in our third fiscal quarter and will continue to be impacted for the next several quarters by the floods that occurred throughout parts of Thailand, we feel we are very well positioned in these markets for the long term.

We have strong market share of the HDD industry, and have executed well in our SSD development, and therefore we believe we are well positioned regardless of the future industry changes. Fiscal 2012 has been challenging, not only for us, but also for the entire semiconductor industry. Even through these difficult times, we have been extremely focused on developing new products which have led to a significant number of new design wins. We are just starting to see the benefits of the investments we have made. With respect to our cellular product offerings, a year ago, we had just one customer with a few products. Today, we have multiple customers ramping handsets with our products. This in itself is a significant transformation for us in a short timeframe. In storage, we have continued to gain market share over the last 12 months and we believe the impact of the floods in Thailand are likely to accelerate the move to advanced HDD technologies, such as 500G per platter, where we are the clear leader. We also expect to double our SSD revenues in our fourth fiscal quarter as compared to the year ago period. In networking, we have won many additional designs with new products and platforms such as PON and 10G. We expect to deliver more new products like these in existing and new markets in the coming year.

As a sign of our continued confidence in the business, during the three months ended October 29, 2011, we repurchased and retired an additional 15 million common shares under our share repurchase program. Under the program, over the past five quarters, we have repurchased and retired over 79 million shares, or approximately 12%, of our outstanding common shares.

As we look forward to the three months ending January 28, 2012, we will clearly have to deal with the significant impacts of the flooding in Thailand. We also expect to continue to face challenges to our gross margins. First, gold prices have increased dramatically over the past two years, and the surcharges paid to our assembly vendors have risen as a result. While we are in the process of transitioning our designs to copper instead of gold, this will take some time. Secondly, wafer price discounts have been less than normal and have not kept pace with the price discounts we provide to our customers. Thirdly, we are now bringing to market more products at more expensive new process nodes resulting in a temporary impact to gross margins. Finally, we are also expecting an increase in sales of some lower-margin products especially in high-volume end markets, which is lowering our overall gross margin.

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The following table sets forth information derived from our unaudited condensed consolidated statements of operations expressed as a percentage of net revenue:

	Three Months Ended						Nine Months Ended
	October 29, 2011			October 30, 2010			October 29, 2011			October 30, 2010
Net revenue		100.0	%		100.0	%		100.0	%		100.0	%
Operating costs and expenses:
Cost of goods sold		43.4			40.7			42.4			40.6
Research and development		28.0			22.8			28.6			24.6
Selling and marketing		4.3			4.1			4.5			4.2
General and administrative		3.0			3.1			2.9			2.9
Amortization of acquired intangible assets		1.2			2.3			1.4			2.4
Total operating costs and expenses		79.9			73.0			79.8			74.7
Operating income		20.1			27.0			20.2			25.3
Interest and other income (expense), net		0.9			(0.2	)		0.3			(0.0	)
Income before income taxes		21.0			26.8			20.5			25.3
Provision for income taxes		0.5			0.2			0.3			0.1
Net income		20.5	%		26.6	%		20.2	%		25.2	%

Three and Nine months Ended October 29, 2011 and October 30, 2010

Net Revenue

	Three Months Ended				% Change			Nine Months Ended				% Change
	October 29, 2011		October 30, 2010					October 29, 2011		October 30, 2010
	(in thousands, except percentage)
Net revenue	$	950,417	$	959,327		(0.9	)%	$	2,650,339	$	2,711,380		(2.3	)%

Net revenue during the three months ended October 29, 2011 declined slightly compared to the three months ended October 30, 2010. Lower revenue in our mobile and wireless end markets was mostly offset by higher revenue in our storage end market. Within our mobile and wireless end markets, the decline was driven by product shift at our leading mobile handset customer to more 2G and 2.5G devices addressing several of the emerging markets around the world, which has impacted the demand for our 3G solutions. This decline was partially offset by the ramp of our mobile SOC products for the TD handset market in China, which were introduced during the first quarter of this fiscal year and have ramped up over the course of the year. Within our storage end markets, our revenue increased as a result of the both a significant new customer that has ramped up over the last year along with existing customers gaining market share versus their competition. These increases were partially offset by the transition of the enterprise drive business at an existing customer to a competitor and the initial impacts of the flooding in Thailand, which has impacted the supply chain for some of our significant customers. Within our networking end markets, our revenue increased moderately as demand increased with our largest customer along with the ramp of our PON products during the current year.

Net revenue during the nine months ended October 29, 2011 declined by 2% compared to the nine months ended October 30, 2010, driven by our mobile and wireless end markets, which were negatively impacted by the product shift at our largest mobile customer partially offset by the ramp up of our products for the TD market in China.

We currently expect overall net revenue for the three months ending January 28, 2012 to decline significantly as compared to the three months ended October 29, 2011 largely driven by the impact of the floods in Thailand on our hard drive business and seasonality in our consumer businesses.

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Historically, a relatively small number of customers have accounted for a significant portion of our net revenue. No distributors accounted for more than 10% of our net revenue for the three and nine months ended October 29, 2011 and October 30, 2010. The following table sets forth revenue attributable to end customers comprising 10% or more of our net revenue for the periods indicated:

	Three Months Ended						Nine Months Ended
Customer	October 29, 2011			October 30, 2010			October 29, 2011			October 30, 2010
A		21	%		20	%		21	%		22	%
B		*			18	%		*			14	%

* Less than 10% of net revenue

Because we sell our products to many OEM manufacturers who have manufacturing operations located in Asia, a significant percentage of our sales are made to customers located outside of the United States. Sales to customers located in Asia represented 90% and 78% of our net revenue for the three months ended October 29, 2011 and October 30, 2010, respectively, and represented 87% and 82% of our net revenue for the nine months ended October 29, 2011 and October 30, 2010, respectively. We expect that a significant portion of our net revenue will continue to be represented by sales to our customers in Asia.

Cost of Goods Sold

	Three Months Ended						% Change			Nine Months Ended						% Change
	October 29, 2011			October 30, 2010						October 29, 2011			October 30, 2010
	(in thousands, except percentage)
Cost of goods sold	$	412,100		$	390,808			5.4	%	$	1,124,692		$	1,101,475			2.1	%
% of net revenue		43.4	%		40.7	%					42.4	%		40.6	%

The increase in cost of goods sold as a percentage of net revenue for the three and nine months ended October 29, 2011 compared to the three and nine months ended October 30, 2010 was primarily driven by declines in the average selling prices of our products, which outpaced the cost reductions received from our manufacturing partners, the volume and costs of new product tapeouts in advanced technology nodes, as well as higher commodity costs in the assembly of our products. Specifically, the cost of gold has increased significantly over the past year. Our cost of goods sold as a percentage of revenue may fluctuate in future periods due to, among other things, changes in the mix of products sold; the timing of production ramps of new products; increased pricing pressures from our customers and competitors, particularly in the consumer product markets that we are targeting; charges for obsolete or potentially excess inventory; changes in the costs charged by our foundry; assembly and test subcontractors; product warranty costs; changes in commodity prices such as gold; and the margin profiles of our new product introductions.

We currently expect cost of goods sold as a percentage of net revenue for the three months ending January 28, 2012 to be higher than for the three months ended October 29, 2011. High commodity prices, especially gold, continues to pose challenges to our gross margin in the near-term. We have undertaken various measures such as moving to copper wiring and using multiple foundries to help mitigate the impact to our gross margin but these measures will take some time.

Research and Development

	Three Months Ended						% Change			Nine Months Ended						% Change
	October 29, 2011			October 30, 2010						October 29, 2011			October 30, 2010
	(in thousands, except percentage)
Research and development	$	266,255		$	218,420			21.9	%	$	758,396		$	665,742			13.9	%
% of net revenue		28.0	%		22.8	%					28.6	%		24.6	%

The increase in research and development expense for the three months ended October 29, 2011 compared to the three months ended October 30, 2010 of $47.8 million was primarily due to a $36.7 million increase in personnel-related costs as a result of increased headcount, contractor services and other professional services, and a $2.1 million increase in stock-based compensation expenses. The three months ended October 29, 2011 also included $4.2 million in assessments related to payroll taxes in certain jurisdictions. This is in addition to a $8.0 million increase in various other research and development expenses to support our larger organization. The overall increase was partially offset by a $3.2 million decrease in depreciation expense.

The increase in research and development expense for the nine months ended October 29, 2011 compared to the nine months ended October 30, 2010 of $92.7 million was primarily due to a $82.0 million increase in personnel-related costs as a result of increased headcount, contractor services, and other professional services, and a $4.8 million increase in the cost of intellectual property licenses. This is in addition to a $12.1 million increase in various other research and development expenses to support our larger organization. The overall increase was partially offset by a $6.2 million decrease in depreciation expense.

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We currently expect that research and development expense for the three months ending January 28, 2012 will decrease slightly from the level of expense reported for the three months ended October 29, 2011.

Selling and Marketing

	Three Months Ended									Nine Months Ended
	October 29, 2011			October 30, 2010			% Change			October 29, 2011			October 30, 2010			% Change
	(in thousands, except percentage)
Selling and marketing	$	40,500		$	39,751			1.9	%	$	119,042		$	115,037			3.5	%
% of net revenue		4.3	%		4.1	%					4.5	%		4.2	%

Selling and marketing expense for the three months ended October 29, 2011 increased slightly compared to the three months ended October 30, 2010. This included a $1.9 million increase in contractor services and other professional services, partially offset by lower general selling and marketing expenses, such as trade show and public relations expenses.

The increase in selling and marketing expense for the nine months ended October 29, 2011 compared to the nine months ended October 30, 2010 of $4.0 million was primarily due to a $7.2 million increase in personnel-related costs, primarily driven by contractor services and other professional services. The increase was partially offset by a $3.1 million decrease in general selling and marketing expense, such as trade show and public relations expenses.

We currently expect that selling and marketing expense for the three months ending January 28, 2012 will be approximately flat from the level of expense reported for the three months ended October 29, 2011.

General and Administrative

	Three Months Ended									Nine Months Ended
	October 29, 2011			October 30, 2010			% Change			October 29, 2011			October 30, 2010			% Change
	(in thousands, except percentage)
General and administrative	$	29,021		$	29,576			(1.9	)%	$	77,436		$	78,124			(0.9	)%
% of net revenue		3.0	%		3.1	%					2.9	%		2.9	%

General and administrative expense for the three months ended October 29, 2011 decreased slightly compared to the three months ended October 30, 2010. This included a $4.5 million decrease in legal expenses, primarily due to the conclusion of a legal case in the prior fiscal year, and a $1.4 million decrease in stock-based compensation, primarily due to adjustments recorded on certain grants connected to performance targets that we no longer expect to be achieved. Partially offsetting the decrease were expenses related to legal settlements.

General and administrative expense for the nine months ended October 29, 2011 decreased slightly compared to the nine months ended October 30, 2010. This included a $2.7 million decrease in legal expenses, primarily due to the conclusion of a legal case in the prior fiscal year, and a $1.9 million decrease in stock-based compensation, primarily due to adjustments recorded on certain grants connected to performance targets that we no longer expect to be achieved. Partially offsetting the decrease were expenses related to legal settlements.

We currently expect that general and administrative expense for the three months ending January 28, 2012 will be essentially flat from the level of expense reported for the three months ended October 29, 2011.

Amortization of Acquired Intangible Assets

	Three Months Ended									Nine Months Ended
	October 29, 2011			October 30, 2010			% Change			October 29, 2011			October 30, 2010			% Change
	(in thousands, except percentage)
Amortization of acquired intangible assets	$	11,155		$	21,770			(48.8	)%	$	36,634		$	65,533			(44.1	)%
% of net revenue		1.2	%		2.3	%					1.4	%		2.4	%

The decrease in amortization of acquired intangible assets for the three and nine months ended October 29, 2011 compared to the three and nine months ended October 30, 2010 was due to intangible assets from certain acquisitions becoming fully amortized.

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Interest and Other Income (expense), Net

	Three Months Ended									Nine Months Ended
	October 29, 2011			October 30, 2010			% Change			October 29, 2011			October 30, 2010			% Change
	(in thousands, except percentage)
Interest and other income (expense), net	$	7,729		$	(1,665	)		(564.2	)%	$	9,575		$	(1,205	)		(894.6	)%
% of net revenue		0.9	%		(0.2	)%					0.3	%		(0.0	)%

The increase in interest and other income (expense), net, for the three months ended October 29, 2011 compared to the three months ended October 30, 2010 was primarily due to revaluation of our foreign currency denominated tax reserves. This was partially offset by losses from write-downs of equity investments.

The increase in interest and other income (expense), net, for the nine months ended October 29, 2011 compared to the nine months ended October 30, 2010 was primarily due to higher interest income on our investments due to a higher rate of return, gains from sales of investments, and lower currency translation losses during the nine months ended October 29, 2011.

Provision for Income Taxes

	Three Months Ended									Nine Months Ended
	October 29, 2011			October 30, 2010			% Change			October 29, 2011			October 30, 2010			% Change
	(in thousands, except percentage)
Provision for income taxes	$	3,994		$	1,605			148.8	%	$	9,340		$	2,988			212.6	%
% of net revenue		0.5	%		0.2	%					0.3	%		0.1	%

During the three months ended October 29, 2011 and October 30, 2010, our effective tax rate was an income tax provision of 2.0% and 0.6%, respectively. During the nine months ended October 29, 2011 and October 30, 2010, our effective tax rate was an income tax provision of 1.7% and 0.4%, respectively. The income tax provision for these periods was affected by non-tax-deductible expenses such as stock-based compensation expense and the amortization of acquired intangibles.

During the three months ended October 29, 2011, the provision for income taxes consisted of the current income tax liability of $6.0 million, and $0.8 million consisting mostly of a tax provision-to-tax return adjustment. These amounts were partially offset by a net reduction of $2.8 million in unrecognized tax benefits. The reduction in unrecognized tax benefits was driven by $4.6 million due to expiration of the statute of limitations in a non-U.S. jurisdiction, offset by new unrecognized tax benefits of $1.8 million due to current year estimates. During the three months ended October 30, 2010, the provision for income taxes was impacted by the current income tax liability of $5.4 million, a reduction of unrecognized tax benefits for $2.0 million due to the expiration of the statute of limitations in a non-U.S. jurisdiction, an increase in unrecognized tax benefits of $1.9 million due to current year estimates, $3.4 million income tax benefit due to release of valuation allowance from the completion of an audit, $1.8 million benefit for a ruling denial related to our supply chain structure and a $1.5 million increase in a U.S. subsidiary due the defeat of a state proposition.

During the nine months ended October 29, 2011, the provision for income taxes consisted of the current income tax liability of $14.3 million, a reduction of unrecognized tax benefits of $11.5 million due to the expiration of the statute of limitations in multiple jurisdictions, an increase in unrecognized tax benefits of $5.5 million, $0.8 million consisting mostly of a tax provision-to-tax return adjustment and a settlement of a non-U.S. audit for $0.2 million. During the nine months ended October 30, 2010, the provision for income taxes was impacted by the current income tax liability of $12.5 million, a reduction of unrecognized tax benefits of $10.7 million due to the expiration of the statute of limitations in multiple jurisdictions, an increase in unrecognized tax benefits of $5.4 million dollars, a decrease in deferred tax asset of $1.5 million related to employee stock options for a non-U.S. subsidiary, $1.0 million withholding tax on the disposition of an investment, $3.4 million income tax benefit due to release of valuation allowance from the completion of an audit, $1.8 million benefit for a ruling denial related to our supply chain structure and a $1.5 million increase in a U.S. subsidiary due to the defeat of a state proposition.

During the next 12 months, it is reasonably possible that the amount of unrecognized tax benefits could decrease due to potential settlement with tax authorities and the expiration of applicable statutes of limitations. However, the amount cannot be reasonably estimated as we will have negotiations with various tax authorities throughout the year.

Liquidity and Capital Resources

Our principal source of liquidity as of October 29, 2011 consisted of approximately $2.4 billion of cash, cash equivalents and short-term investments. We believe that our existing cash, cash equivalents and short term investments, together with cash generated from operations, will be sufficient to cover our working capital needs, capital expenditures, investment requirements and commitments for at least the next 12 months.

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Net Cash Provided by Operating Activities

Net cash provided by operating activities was $702.1 million for the nine months ended October 29, 2011. The cash inflows from operations for the nine months ended October 29, 2011 were primarily due to $740.6 million of net income adjusted for non-cash items, offset by changes in assets and liabilities of $38.5 million.

Significant working capital changes driving cash outflows for the nine months ended October 29, 2011 included an increase in inventory of $64.5 million. Working capital changes driving cash inflows included an increase in accounts payable of $23.4 million and a decrease in prepaid expenses and other current assets of $14.8 million.

Net cash provided by operating activities was $942.7 million for the nine months ended October 30, 2010. The cash inflows from operations in the nine months ended October 30, 2010 were primarily due to $904.1 million of net income adjusted for non-cash items. Increases in working capital during the nine months ended October 30, 2010 included an increase in accounts payable of $68.9 million, due primarily to higher levels of purchasing. Deferred income increased by $28.8 million, due primarily to our distributors increasing inventory levels in anticipation of increased sales to their end customers. These increases were partially offset by an increase in accounts receivable of $111.2 million, due to higher levels of revenue and seasonal patterns.

Net Cash Used in Investing Activities

Net cash used in investing activities was $593.9 million for the nine months ended October 29, 2011 compared to $441.6 million for the nine months ended October 30, 2010. The net cash used in investing activities in the nine months ended October 29, 2011 was primarily due to net purchases of investments of $503.2 million. In addition, we paid $62.3 million for the purchase of property and equipment, $18.8 million for acquisitions and $9.6 million for technology licenses.

The net cash used for the nine months ended October 30, 2010 was primarily due to the net purchase of investments of $345.0 million, payment of $20.7 million for an acquisition, purchases of property and equipment of $63.3 million and purchases of technology licenses for $12.6 million.

Net Cash Provided by (Used in) Financing Activities

Net cash used in financing activities was $1.1 billion for the nine months ended October 29, 2011 compared to net cash provided by financing activities of $36.3 million for the nine months ended October 30, 2010. For the nine months ended October 29, 2011, net cash used in financing activities was primarily attributable to repurchases under our stock repurchase program of 74.3 million shares of our outstanding common shares. The cash outflow was partially offset by $50.4 million of proceeds from the issuance of common shares under our stock option and employee stock purchase plans. For the nine months ended October 30, 2010, net cash provided by financing activities was primarily attributable to proceeds from the issuance of common shares under our stock option and employee stock purchase plans, partially offset by repurchases under our stock repurchase program.

Off-Balance Sheet Arrangements

As of October 29, 2011, we did not have any material off-balance sheet arrangements, as defined in Item 303(a)(4)(ii) of SEC Regulation S-K, other than the indemnification, commitments and guarantee arrangements discussed in “Note 10 – Commitments and Contingencies” in Part I, Item 1 of this Form 10-Q.

Recent Accounting Pronouncements and Accounting Changes

See “Note 2 – Recent Accounting Pronouncements and Accounting Changes” in Part 1, Item 1 of this Form 10-Q.

Contractual Obligations

We presented our contractual obligations at January 29, 2011 in our Annual Report on Form 10-K for the fiscal year then ended. There has been no material changes outside the ordinary course of business in those obligations during three months ended October 29, 2011.

Item 3. Quantitative and Qualitative Disclosures About Market Risk

Interest Rate Risk. Our interest rate risk relates primarily to our fixed income short-term investment portfolio as we did not have any outstanding debt as of October 29, 2011. We maintain an investment policy that requires minimum credit ratings, diversification of credit risk and limits the long-term interest rate risk by requiring maturities of less than five years. We invest our excess cash primarily in highly liquid

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debt instruments of the U.S. government and its agencies, time deposits, money market mutual funds, and corporate debt securities. These investments are generally classified as available-for-sale and, consequently, are recorded on our balance sheets at fair market value with their related unrealized gain or loss reflected as a component of accumulated other comprehensive income in shareholders’ equity. Investments in both fixed rate and floating rate interest earning securities carry a degree of interest rate risk. Fixed rate securities may have their fair market value adversely impacted due to a rise in interest rates, while floating rate securities may produce less income than predicted if interest rates fall.

To provide an assessment of the interest rate risk associated with our investment portfolio, we performed a sensitivity analysis to determine the impact that an adverse change in interest rates would have on the value of the investment portfolio. Based on investment positions as of October 29, 2011, a hypothetical 100 basis point increase in interest rates across all maturities would result in a $15.3 million incremental decline in the fair market value of the portfolio. Due to our positive cash flow from operations, the relatively short-term nature of our investment portfolio and our ability to hold investments to maturity, such change in fair market value would likely not have resulted in any cash flow impact.

As of October 29, 2011, our investment portfolio included $24.6 million in par value of auction rate securities. Beginning in February 2008, liquidity issues in the global credit markets resulted in a failure of auction rate securities, as the amount of securities submitted for sale in those auctions exceeded the amount of bids. To estimate the fair value of the auction rate securities since that time, we have used a discounted cash flow model based on estimated timing and amount of future interest and principal payments, credit quality of the underlying securities and liquidity considerations, the collateralization of underlying security investments, the credit worthiness of the issuer of the securities, the probability of full repayment and other considerations. As of October 29, 2011, the fair value of auction rate securities was $1.3 million less than par value and recorded in long-term investments.

Based on our balance of approximately $2.4 billion in cash, cash equivalents and short-term investments and the fact that we continue to generate positive cash flow on a quarterly basis, we do not anticipate having to sell these securities below par value in order to operate our business. We do not have the intent to sell these auction rate securities until recovery and it is more likely than not that we will not be required to sell the auction rate securities prior to recovery. Thus we consider the impairment to be temporary and recorded the unrealized loss to accumulated other comprehensive income (loss), a component of shareholders’ equity.

Investment Risk. We invest in equity instruments of privately held companies for strategic purposes. We account these investments under the cost method when we do not have the ability to exercise significant influence or control over the operations of these companies and under the equity method when we have the ability to exercise significant influence, but do not have control. Carrying value of these equity investments was $6.1 million at October 29, 2011, and was included in other non-current assets in our balance sheets. We monitor these investments for impairment and make appropriate reductions in carrying value when an impairment is deemed to be other-than-temporary.

Commodity Price Risk. We are subject to risk from fluctuating market prices of certain commodity raw materials, particularly gold, that are incorporated into our end products. Supplies for such commodities may from time-to-time become restricted, or general market factors and conditions may affect the pricing of such commodities. Over the past few years, the price of gold increased significantly and certain of our supply chain partners assess surcharges to compensate for the rising commodity prices. We are currently restructuring certain manufacturing processes to use copper instead of gold in our products. While we continue to attempt to mitigate the risk of similar increases in commodities-related costs, there can be no assurance that we will be able to successfully safeguard against potential short-term and long-term commodities price fluctuations. We do not enter into formal hedging arrangements to mitigate against commodity risk.

Foreign Currency Exchange Risk. Substantially all of our sales and the majority of our expenses are denominated in U.S. dollars. Since we operate in many countries, we pay certain payroll and other operating expenses in local currencies and these expenses may be higher or lower in U.S. dollar terms. Furthermore, our operation in Israel represents a large portion of our total foreign currency exposure. We may also hold certain assets and liabilities, including potential tax liabilities in local currency on our balance sheet. These tax liabilities would be settled in local currency. Therefore, foreign exchange gains and losses from remeasuring the tax liabilities are recorded to other income and expense. The related effects of foreign exchange fluctuations on local currency expenses are recorded to operating expenses. Significant fluctuations in exchange rates in countries where we incur expenses or record assets or liabilities in local currency could affect our business and operating results in the future. There is also a risk that our customers may be negatively impacted in their ability to purchase our products priced in U.S. dollars when there has been significant volatility in foreign currency exchange rates.

We engage in hedging transactions to help mitigate some of the volatility to forecasted cash flows due to changes in foreign exchange rates, and in particular hedge a portion of the forecasted Israeli shekel expenses. We enter into certain short-term forward exchange contracts, typically less than 12 months in duration, to hedge exposures for expenses and purchases denominated in foreign currencies when the currency exposure is significant and there is a high certainty of the underlying cash flow. We do not enter into derivative financial instruments for trading or speculative purposes. We may choose not to hedge certain foreign exchange exposures due to immateriality, offsetting exposures, prohibitive economic cost of hedging a particular currency, and limited availability of appropriate hedging instruments. To the extent our foreign currency hedges are effective, the results of the hedge activities offset the underlying expense within the operating expense. De-designated hedges or hedges deemed ineffective are recorded in interest and other income (expense), net. We do not hedge our tax liabilities denominated in local currency on our balance sheet as the timing of these tax liabilities becoming cash flows is not deemed to be certain.

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To provide an assessment of the foreign currency exchange risk associated with our foreign currency exposures within operating expense, we performed a sensitivity analysis to determine the impact that an adverse change in exchange rates would have on our financial statements. If the U.S. dollar weakened by 10%, our operating expense could increase by 3%. We expect our hedges of foreign currency exposures to be highly effective and offset a significant portion of the short-term impact of changes in exchange rates.

Item 4. Controls and Procedures

Management’s Evaluation of Disclosure Controls and Procedures

Our management, with the participation of our Chief Executive Officer and our Chief Financial Officer, has evaluated the effectiveness of our disclosure controls and procedures (as defined in Rule 13a-15(e) of the Exchange Act). Our disclosure controls and procedures are designed to ensure that information required to be disclosed is recorded, processed, summarized and reported within the time periods specified in the rules and forms of the Securities and Exchange Commission (“SEC”) and that such information is accumulated and communicated to management, including the Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosure. Based on this evaluation, our Chief Executive Officer and Chief Financial Officer concluded that, as of October 29, 2011, our disclosure controls and procedures were effective to provide reasonable assurance.

Changes in Internal Control Over Financial Reporting

There were no changes in our internal control over financial reporting during the three months ended October 29, 2011 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

Limitation on Effectiveness of Controls

It should be noted that any system of controls, however well designed and operated, can provide only reasonable, and not absolute, assurance that the objectives of the system are met. The design of any control system is based, in part, upon the benefits of the control system relative to its costs. Control systems can be circumvented by the individual acts of some persons, by collusion of two or more people, or by management override of the control. In addition, over time, controls may become inadequate because of changes in conditions, or the degree of compliance with the policies and procedures may deteriorate. In addition, the design of any control system is based in part upon certain assumptions about the likelihood of future events.

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PART II. OTHER INFORMATION

Item 1. Legal Proceedings

The information set forth under “Note 10 – Commitments and Contingencies” of our notes to unaudited condensed consolidated financial statements, included in Part I, Item 1, is incorporated herein by reference. For additional discussion of certain risks associated with legal proceedings, see Part II, Item 1A, “Risk Factors,” immediately below.

Item 1A. Risk Factors

Before deciding to purchase, hold or sell our common shares, you should carefully consider the risks described below in addition to the other cautionary statements and risks described elsewhere and the other information contained in this Quarterly Report on Form 10-Q and in our other filings with the SEC, including our Annual Report on Form 10-K for the year ended January 29, 2011 and subsequent reports on Forms 10-Q and 8-K. Many of these risks and uncertainties are beyond our control, including business cycles and seasonal trends of the computing, semiconductor and related industries.

Our financial condition and results of operations may vary from quarter to quarter, which may cause the price of our common shares to decline.

Our quarterly results of operations have fluctuated in the past and could do so in the future. Because our results of operations are difficult to predict, you should not rely on quarterly comparisons of our results of operations as an indication of our future performance.

Fluctuations in our results of operations may be due to a number of factors, including, but not limited to, those listed below and those identified throughout this “Risk Factors” section:

• changes in general economic and political conditions and specific conditions in the markets we address, including the continuing volatility in the technology sector and semiconductor industry, and current general economic volatility;

• our ability to develop and introduce new and enhanced products in a timely and effective manner;

• cancellations, rescheduling or deferrals of significant customer orders or shipments;

• our dependence on a few customers for a significant portion of our revenue;

• our ability to scale our operations in response to changes in demand for our existing products or demand for new products requested by our customers;

• gain or loss of a key customer or design win;

• seasonality in sales of consumer devices in which our products are incorporated;

• our ability to maintain a competitive cost structure for our manufacturing and assembly and test processes;

• increases in assembly costs due to commodity price increases, such as the price of gold;

• failure to qualify our products or our suppliers’ manufacturing lines;

• our ability to exercise stringent quality control measures to obtain high yields;

• our ability to anticipate and adapt to changes in technology and evolving industry standards and our customers’ changing demands;

• our ability to successfully transition to smaller geometry process technologies or achieve higher levels of design integration;

• our ability to attract and retain highly skilled managerial, engineering, sales and marketing personnel;

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• failure to protect our intellectual property;

• impact of a significant natural disaster, including earthquakes, floods and tsunamis; and

• any current and future litigation that could result in substantial costs and a diversion of management’s attention and resources that are needed to successfully maintain and grow our business.

Due to fluctuations in our quarterly results of operations and other factors, the price at which our common shares will trade is likely to continue to be highly volatile. Accordingly, you may not be able to resell your common shares at or above the price you paid. In future periods, our stock price could decline if, amongst other factors, our revenues or operating results are below our estimates or the estimates or expectations of public market analysts and investors. As a result of stock price volatility, we may be subject to securities class action litigation. Any litigation could result in substantial costs and a diversion of management’s attention and resources that are needed to successfully maintain and grow our business.

Our business, financial condition and results of operations may be adversely impacted by global economic conditions, which may cause a decline in the market price of our common shares.

We operate in the semiconductor industry, which is cyclical and subject to rapid change and evolving industry standards. From time to time, this industry has experienced significant demand downturns. These downturns are characterized by decreases in product demand, excess customer inventories and sometimes accelerated erosion of prices. These factors could cause substantial fluctuations in our net revenue, gross margin, cash flows and results of operations. In addition, during these downturns some competitors may become more aggressive in their pricing practices, which would adversely impact our gross margin. Any downturns in the current environment may be severe and prolonged, and any failure of the markets in which we operate to fully recover from downturns could seriously impact our revenue and harm our business, financial condition and results of operations. The semiconductor industry is also subject to periodic increases in demand and supply constraints, which may affect our ability to ship products. Accordingly, our results of operations may vary significantly as a result of the general conditions in the semiconductor industry, which could cause fluctuations in our stock price.

The global credit and financial markets have experienced and in some cases continue to experience extreme volatility and disruptions, including severely diminished liquidity and credit availability, increased concerns about inflation and deflation and the downgrade of U.S. debt and exposure risks on other sovereign debts, decreased consumer confidence, lower economic growth, volatile energy costs, increased unemployment rates, and uncertainty about economic stability. We cannot predict the timing, strength or duration of any economic slowdown or subsequent global economic recovery in the hard disk drive or in the semiconductor industry. If the economy or markets in which we operate deteriorate from current levels, our business, financial condition and results of operations will likely be materially and adversely affected. Additionally, the combination of our lengthy sales cycle coupled with challenging macroeconomic conditions could adversely impact our results of operations.

A significant portion of our business is dependent on the hard disk drive industry, which is highly cyclical, experiences rapid technological change, is subject to industry consolidation and is facing increased competition from alternative technologies.

The hard disk drive industry is intensely competitive, and the technology changes rapidly. This industry has historically been cyclical, with periods of increased demand and rapid growth followed by periods of oversupply and subsequent contraction. These cycles may affect us because some of our customers are participants in this industry.

Hard disk drive manufacturers tend to order more components than they may need during growth periods, and sharply reduce orders for components during periods of contraction. Rapid technological changes in the hard disk drive industry often result in shifts in market share among the industry’s participants. If the hard disk drive manufacturers using our products do not retain or increase their market share, our sales may decrease.

In addition, the hard disk drive industry has experienced consolidation over the past several years. For example, during fiscal 2010, Toshiba acquired the hard disk drive operations of Fujitsu. In March 2011, Western Digital announced that it plans to acquire Hitachi’s hard disk drive unit; and in April 2011, Seagate announced that it plans to acquire Samsung’s hard disk drive unit. Consolidation among our customers could lead to changing demand for our products, replacement of our products by the merged entity with those of our competitors and cancellation of orders, each of which could harm our results of operations. On the other hand, this could lead to increased opportunities for our products within the combined company if we can leverage our technology and customer relationships.

Furthermore, future changes in the nature of information storage products could reduce demand for traditional hard disk drives. For example, products using alternative technologies, such as solid-state flash drives and other storage technologies could become a source of competition to manufacturers of hard disk drives. We offer solid state drive controllers, leveraging our technology in hard drives, and believe we will maintain significant market share.

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We operate in the intensely competitive markets, and our failure to compete effectively would harm our results of operations.

The semiconductor industry and specifically the mobile and wireless communications markets are extremely competitive, and we expect competition to intensify as current competitors expand their product offerings and new competitors enter the market. We currently compete with a number of large domestic and international companies in the business of designing integrated circuits and related applications, some of which have greater financial, technical and management resources than us. We expect competition to continue to increase as industry standards continue to evolve and become better known, and others realize the market potential of wired and wireless products and services. As competition in the markets in which we operate continues to increase, our revenues and gross margins may be harmed. For example, competitors with greater financial resources may be able to offer lower prices than us, or they may offer additional products, services or other incentives that we may not be able to match. In addition, many of our competitors operate and maintain their own fabrication facilities and have longer operating histories, greater name recognition, larger customer bases, and greater sales, marketing and distribution resources than we do. Furthermore, our current and potential competitors in the mobile and wireless markets have established or may establish financial and strategic relationships among themselves or with existing or potential customers or other third parties to increase the ability of their products to address the needs of customers. Accordingly, new competitors or alliances among these competitors may acquire significant market share, which would harm our business. While we continue to pursue similar strategic relationships, and currently have significant financial and technical resources, we cannot assure you that we will be able to continue to compete successfully against existing or new competitors, which would harm our results of operations.

In addition, the semiconductor providers competing for the mobile and wireless communication markets have experienced consolidation recently. In September 2011, Broadcom Corporation announced that it plans to acquire NetLogic Microsystems. Consolidation among our competitors could lead to a changing competitive landscape, capabilities, and market share, which could harm our results of operations. On the other hand, this could lead to increased opportunities for our products.

We rely on independent foundries and subcontractors for the manufacture, assembly and testing of our integrated circuit products, and the failure of any of these third party vendors to deliver products or otherwise perform as requested could damage our relationships with our customers, decrease our sales and limit our growth.

We do not have our own manufacturing or assembly facilities and have very limited in-house testing facilities. Therefore, we currently rely on several third party foundries to produce our integrated circuit products. We also currently rely on several third party assembly and test subcontractors to assemble, package and test our products. This exposes us to a variety of risks, including the following:

Regional Concentration:

Substantially all of our products are manufactured by third party foundries located in Taiwan. Currently, our alternative manufacturing sources are located in China and Singapore. In addition, substantially all of our assembly and testing facilities are located in Singapore, Taiwan, Malaysia and the Philippines. Because of the geographic concentration of these third party foundries, as well as our assembly and test subcontractors, we are exposed to the risk that their operations may be disrupted by regional disasters or by political changes. For example, the risk of an earthquake in Taiwan and elsewhere in the Pacific Rim region is significant due to the proximity of major earthquake fault lines to the facilities of our foundries and assembly and test subcontractors. Taiwan has experienced significant earthquakes in the past and may be subject to additional earthquakes that could disrupt manufacturing operations. In addition, the resurgence of severe acute respiratory syndrome, the outbreak of avian flu and any similar future outbreaks in Asia, where these foundries are located, could affect the production capabilities of our manufacturers by resulting in quarantines or closures. In the event of a significant natural disaster or a quarantine or closure that affects our manufacturers in the Pacific Rim, our revenues, cost of goods sold and results of operations would be negatively impacted. In addition, if we were unable to quickly identify alternate manufacturing facilities, we could experience significant delays in product shipments.

No Guarantee of Capacity or Supply:

The ability of each foundry to provide us with semiconductor devices is limited by its available capacity and existing obligations. In addition, when demand is strong, availability of foundry capacity may be constrained, and with limited exceptions, our vendors are not obligated to perform services or supply products to us for any specific period, in any specific quantities, or at any specific price, except as may be provided in a particular purchase order. For example, in recent years, we experienced some supply shortages due to the difficulties encountered by the foundries in rapidly increasing their production capacities from low utilization levels to the high utilization levels required due to a rapid increase in demand. Although we have entered into contractual commitments to supply specified levels of products to some of our customers, we may not have sufficient levels of production capacity with all of our foundries. Foundry capacity may not be available when we need it or at reasonable prices. We place our orders on the basis of our customers’ purchase orders or our forecast of customer demand, and the foundries can allocate capacity to the production of other companies’ products and reduce deliveries to us on short notice. It is possible that foundry customers that are larger and better financed than we are or that have long-term agreements with our main foundries may induce our foundries to reallocate capacity to those customers. This reallocation could impair our ability to secure the supply of components that we need. Moreover, if any of our third party foundry suppliers are unable to secure necessary raw materials from their suppliers, lose benefits under

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material agreements, experience power outages, lack sufficient capacity to manufacture our products, encounter financial difficulties or suffer any other disruption or reduction in efficiency, we may encounter supply delays or disruptions, which could harm our business or results of operations.

Although we use several independent foundries to manufacture our semiconductor products, most of our products are not manufactured at more than one foundry at any given time, and our products typically are designed to be manufactured in a specific process at only one of these foundries. Accordingly, if one of our foundries is unable to provide us with components as needed, it may be difficult for us to transition the manufacture of our products to other foundries, and we could experience significant delays in securing sufficient supplies of those components. This could result in a material decline in revenues, net income and cash flow.

In order to secure sufficient foundry capacity when demand is high and mitigate the risks described in the foregoing paragraph, we may enter into various arrangements with suppliers that could be costly and harm our results of operations, such as non-refundable deposits with or loans to foundries in exchange for capacity commitments, and contracts that commit us to purchase specified quantities of integrated circuits over extended periods. We may not be able to make any such arrangement in a timely fashion or at all, and any arrangements may be costly, reduce our financial flexibility, and not be on terms favorable to us. Moreover, if we are able to secure foundry capacity, we may be obligated to use all of that capacity or incur penalties. These penalties may be expensive and could harm our financial results.

We are also subject to risk from fluctuating market prices of certain commodity raw materials, particularly gold, that are incorporated into our end products or used by our suppliers to manufacture our end products. Supplies for such commodities may from time-to-time become restricted, or general market factors and conditions may affect pricing of such commodities. Over the past few years, the price of gold increased significantly and certain of our supply chain partners assess surcharges to compensate for the resultant increase in manufacturing costs. As a result, our gross margins may be adversely affected by significant increases in the price of gold. We are currently restructuring certain manufacturing processes to use copper instead of gold in our products. In transitioning from gold to copper, because the capacity of either wafer producers or assemblers can be limited from time to time, we may be unable to satisfy the demand of our customers, or may have to accept price increases or other compensation arrangements that increase our operating expenses and erode our gross margins. Our results may also be materially affected adversely if we fail to execute successfully or if we experience resistance from our customer base in the transition from gold to copper.

Uncertain Yields and Quality:

The fabrication of integrated circuits is a complex and technically demanding process. Our foundries have from time to time experienced manufacturing defects and reduced manufacturing yields. Changes in manufacturing processes or the inadvertent use of defective or contaminated materials by our foundries could result in lower than anticipated manufacturing yields or unacceptable performance. Many of these problems are difficult to detect at an early stage of the manufacturing process and may be time consuming and expensive to correct. Poor yields from our foundries, or defects, integration issues or other performance problems in our products could cause us significant customer relations and business reputation problems, harm our financial results and result in financial or other damages to our customers. Our customers could also seek damages from us for their losses. A product liability claim brought against us, even if unsuccessful, would likely be time consuming and costly to defend. In addition, defects in our existing or new products could result in significant warranty, support and repair costs, and divert the attention of our engineering personnel from our product development efforts.

To the extent that we rely on outside suppliers to manufacture or assemble and test our products, we may have a reduced ability to control directly product delivery schedules and quality assurance. This lack of control may result in product shortages or quality assurance problems that could delay shipments of products or increase manufacturing, assembly, testing or other costs.

Our sales are concentrated in a few customers, and if we lose or experience a significant reduction in sales to any of these key customers, or if any of these key customers experience a significant decline in market share, our revenues may decrease substantially.

We receive a significant amount of our revenues from a limited number of customers. For the nine months ended October 29, 2011, one customer accounted for a total of approximately 21% of our net revenue. Sales to our largest customers have fluctuated significantly from period to period primarily due to the timing and number of design wins with each customer, natural disasters that may divert a customer’s operations, as well as the continued diversification of our customer base as we expand into new markets, and will likely continue to fluctuate dramatically in the future. The loss of any of our large customers or a significant reduction in sales we make to them would likely harm our financial condition and results of operations. Our operating results in the foreseeable future will continue to depend on sales to a relatively small number of customers, as well as the ability of these customers to sell products that incorporate our products. In the future, these customers may decide not to purchase our products at all, purchase fewer products than they did in the past, or alter their purchasing patterns in some other way, particularly because:

• substantially all of our sales are made on a purchase order basis, which permits our customers to cancel, change or delay product purchase commitments with little or no notice to us and without penalty;

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• our customers may purchase integrated circuits from our competitors;

• our customers may discontinue sales or lose market share in the markets for which they purchase our products;

• our customers may develop their own solutions; or

• our customers may be subject to severe business disruptions.

We are subject to order and shipment uncertainties, and if we are unable to accurately predict customer demand, we may hold excess or obsolete inventory, which would reduce our gross margin; conversely, we may have insufficient inventory, which would result in lost revenue opportunities and potentially in loss of market share and damaged customer relationships.

We typically sell products pursuant to purchase orders rather than long-term purchase commitments. Customers can generally cancel or defer purchase orders on short notice without incurring a significant penalty. In the recent past, some of our customers have developed excess inventories of their own products and have, as a consequence, deferred purchases of our products. We cannot accurately predict what or how many products our customers will need in the future. Anticipating demand is difficult because our customers face unpredictable demand for their own products and are increasingly focused more on cash preservation and tighter inventory management. In addition, as an increasing number of our chips are being incorporated into consumer products, we anticipate greater fluctuations in demand for our products, which makes it more difficult to forecast customer demand. We place orders with our suppliers based on forecasts of customer demand and, in some instances, may establish buffer inventories to accommodate anticipated demand. Our forecasts are based on multiple assumptions, each of which may introduce error into our estimates. For example, our ability to accurately forecast customer demand may be impaired by the delays inherent in our lengthy sales cycle. The sales cycle for many of our products is long and requires us to invest significant resources with each potential customer without any assurance of sales to that customer. Our sales cycle typically begins with an extended evaluation and test period, also known as qualification, during which our products undergo rigorous reliability testing by our customers. Qualification is typically followed by an extended development period by our customers and an additional three to nine month period before a customer commences volume production of equipment incorporating our products. This lengthy sales cycle creates the risk that our customers will decide to cancel or change product plans for products incorporating our integrated circuits prior to completion, which makes it even more difficult to forecast customer demand.

Our products are incorporated into complex devices and systems, which may create supply chain cross-dependencies. Recently, many areas of Thailand have sustained massive damage from flooding, which has disrupted the global supply chain for hard disk drives. Due to cross dependencies, supply chain disruptions stemming from the flooding in Thailand will negatively impact the demand for our products in the short term. We have a limited ability to predict the timing of the supply chain correction. In addition, the market share of our customers could be adversely impacted on a long-term basis, which could negatively affect our results of operations.

If we overestimate customer demand, our excess or obsolete inventory may increase significantly, which would reduce our gross margin and adversely affect our financial results. Conversely, if we underestimate customer demand or if insufficient manufacturing capacity is available, we would miss revenue opportunities and potentially lose market share and damage our customer relationships. In addition, any future significant cancellations or deferrals of product orders or the return of previously sold products could materially and adversely affect our profit margins, increase product obsolescence and restrict our ability to fund our operations.

If we are unable to develop and introduce new and enhanced products that achieve market acceptance in a timely and cost-effective manner, our results of operations and competitive position will be harmed.

Our future success will depend on our ability, in a timely and cost-effective manner, to develop and introduce new products and enhancements to our existing products. We must also achieve market acceptance for these products and enhancements. If we do not successfully develop and achieve market acceptance for new and enhanced products, our ability to maintain or increase revenues will suffer. The development of new silicon devices is highly complex, and due to supply chain cross-dependencies and other issues, we may experience delays in completing the development, production and introduction of our new products. In addition, the success of our business also depends on market acceptance of new consumer products and technologies, which contain our products. Even if new and enhanced products are introduced to the market, we may not be able to achieve market acceptance of them in a timely manner.

In addition, our long-standing relationships with some of our larger customers may also deter other potential customers who compete with these customers from buying our products. To attract new customers or retain existing customers, we may offer certain customers certain price concessions, which could cause our average selling prices and gross margins to decline.

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If we fail to appropriately scale our operations in response to changes in demand for our existing products or to the demand for new products requested by our customers, our business and profitability could be materially and adversely affected.

To achieve our business objectives, it may be necessary from time to time for us to expand or contract our operations. In the future, we may not be able to scale our workforce and operations in a sufficiently timely manner to respond effectively to changes in demand for our existing products or to the demand for new products requested by our customers. In that event, we may be unable to meet competitive challenges or exploit potential market opportunities, and our current or future business could be materially and adversely affected. Conversely, if we expand our operations and workforce too rapidly in anticipation of increased demand for our products, and such demand does not materialize at the pace at which we expected, the rate of increase in our costs and operating expenses may exceed the rate of increase in our revenue, which would adversely affect our results of operations. In addition, if such demand does not materialize at the pace which we expect, we may be required to scale down our business through expense and headcount reductions as well as facility consolidations or closures that could result in restructuring charges that would materially and adversely affect our results of operations. For example, in order to reduce expenses in the challenging economic environment that began during the second half of fiscal 2009, in late fiscal 2009 and early in fiscal 2010, we implemented certain cost reduction measures to reduce operating expenses. Because many of our expenses are fixed in the short-term or are incurred in advance of anticipated sales, we may not be able to decrease our expenses in a timely manner to offset any decrease in customer demand. If customer demand does not increase as anticipated, our profitability could be adversely affected due to our higher expense levels.

Our past growth has placed, and any future long-term growth is expected to continue to place, a significant strain on our management personnel, systems and resources. To implement our current business and product plans, we will need to continue to expand, train, manage and motivate our workforce. All of these endeavors will require substantial management effort. Although we have an enterprise resource planning system to help us improve our planning and management processes, we anticipate that we will also need to continue to implement and improve a variety of new and upgraded operational and financial systems, as well as additional procedures and other internal management systems. These systems can be time consuming and expensive to implement, increase management responsibilities and divert management attention. If we are unable to effectively manage our expanding operations, we may be unable to scale our business quickly enough to meet competitive challenges or exploit potential market opportunities, or conversely, we may scale our business too quickly and the rate of increase in our costs and expenses may exceed the rate of increase in our revenue, either of which would materially and adversely affect our results of operations.

Costs related to defective products could have a material adverse effect on us.

We have experienced, from time to time, hardware and software defects and bugs associated with the introduction of our highly complex products. We cannot assure you that, despite our testing procedures, errors will not be found in new products or releases after commencement of commercial shipments in the future, which could result in loss of or delay in market acceptance of our products, material recall and replacement costs, delay in revenue recognition or loss of revenues, writing down the inventory of defective products, the diversion of the attention of our engineering personnel from product development efforts, our having to defend against litigation related to defective products or related property damage or personal injury, and damage to our reputation in the industry that could adversely affect our relationships with our customers. In addition, we may have difficulty identifying the end customers of the defective products in the field. As a result, we could incur substantial costs to implement modifications to correct defects. Any of these problems could materially adversely affect us.

We must keep pace with rapid technological change and evolving industry standards in the semiconductor industry to remain competitive.

Our future success will depend on our ability to anticipate and adapt to changes in technology and evolving industry standards. We sell products in markets that are characterized by rapid technological change, evolving industry standards, frequent new product introductions, short product life cycles and increasing demand for higher levels of integration and smaller process geometries. Our past sales and profitability have resulted, to a large extent, from our ability to anticipate changes in technology and industry standards and to develop and introduce new and enhanced products incorporating the new standards and technologies. Our ability to adapt to these changes and to anticipate future standards, and the rate of adoption and acceptance of those standards, will be a significant factor in maintaining or improving our competitive position and prospects for growth. If new industry standards emerge that we do not properly anticipate, our products or our customers’ products could become unmarketable or obsolete, and we could lose market share. We may also have to incur substantial unanticipated costs to comply with these new standards. In addition, our target markets continue to undergo rapid growth and consolidation. A significant slowdown in any of these markets could materially and adversely affect our business, financial condition and results of operations. Our success will also depend on the ability of our customers to develop new products and enhance existing products for the markets they serve and to introduce and promote those products successfully.

Our gross margin and results of operations may be adversely affected in the future by a number of factors, including decreases in average selling prices of products over time and shifts in our product mix.

The products we develop and sell are primarily used for high volume applications. As a result, the prices of those products have historically decreased rapidly. In addition, more recently introduced products tend to have higher associated costs because of initial overall development and production ramp. We may not be able to maintain or improve our gross margins. Our financial results could suffer if we are unable to offset any reductions in our average selling prices by other cost reductions through efficiencies and other means.

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Moreover, because of the wide price differences across the markets we serve, the mix and types of performance capabilities of our products sold may affect the average selling prices of our products and have a substantial impact on our revenue and gross margin. Fluctuations in the mix and types of our products may also affect the extent to which we are able to recover the fixed costs and investments associated with a particular product, and as a result can harm our financial results.

Additionally, because we do not operate our own manufacturing, assembly or testing facilities, we may not be able to reduce our costs as rapidly as companies that operate their own facilities, and our costs may even increase, which could also reduce our gross margins. In the past, we have reduced the average selling prices of our products in anticipation of future competitive pricing pressures, new product introductions by us or by our competitors and other factors. We expect that we will have to do so again in the future.

We may experience difficulties in transitioning to smaller geometry process technologies or in achieving higher levels of design integration, which may result in reduced manufacturing yields, delays in product deliveries and increased expenses.

In order to remain competitive, we expect to continue to transition our semiconductor products to increasingly smaller line width geometries. This transition requires us to modify the manufacturing processes for our products and to redesign some products. We periodically evaluate the benefits, on a product-by-product basis, of migrating to smaller geometry process technologies to reduce our costs. In the past, we have experienced some difficulties in shifting to smaller geometry process technologies or new manufacturing processes, which resulted in reduced manufacturing yields, delays in product deliveries and increased expenses. We may face similar difficulties, delays and expenses as we continue to transition our products to smaller geometry processes. We are dependent on our relationships with our foundry subcontractors to transition to smaller geometry processes successfully. We cannot assure you that the foundries that we use will be able to effectively manage the transition or that we will be able to maintain our existing foundry relationships or develop new ones. If we or any of our foundry subcontractors experience significant delays in this transition or fail to efficiently implement this transition, we could experience reduced manufacturing yields, delays in product deliveries and increased expenses, all of which could harm our relationships with our customers and our results of operations. As smaller geometry processes become more prevalent, we expect to continue to integrate greater levels of functionality, as well as customer and third party intellectual property, into our products. However, we may not be able to achieve higher levels of design integration or deliver new integrated products on a timely basis, if at all. Moreover, even if we are able to achieve higher levels of design integration, such integration may have a short-term adverse impact on our results of operations, as we may reduce our revenue by integrating the functionality of multiple chips into a single chip.

As a result of our global operations, we face increased risks, which may harm our results of operations, because a majority of our products and our customers’ products are manufactured and sold outside of the United States.

A substantial portion of our business is conducted outside of the United States and, as a result, we are subject to foreign business, political and economic risks. All of our products are manufactured outside of the United States. Our current qualified integrated circuit foundries are located in the same region within Taiwan, and our primary assembly and test subcontractors are located in the Pacific Rim region. In addition, many of our customers are located outside of the United States, primarily in Asia, which further exposes us to foreign risks. Sales to customers located in Asia represented approximately 87% of our net revenue in the nine months ended October 29, 2011, 81% of our net revenue in fiscal 2011 and 89% of our net revenue in fiscal 2010.

As of October 29, 2011, we had substantial operations outside of the U.S. These operations are directly influenced by the political and economic conditions of the region in which they are located, and with respect to Israel, possible military hostilities that could affect our operations there. We anticipate that our manufacturing, assembly, testing and sales outside of the United States will continue to account for a substantial portion of our operations and revenue in future periods. Accordingly, we are subject to risks associated with international operations, including:

• political, social and economic instability, including wars, terrorism, other hostilities and political unrest, boycotts, curtailment of trade and other business restrictions;

• compliance with domestic and foreign export and import regulations, and difficulties in obtaining and complying with domestic and foreign export, import and other governmental approvals, permits and licenses;

• compliance with foreign laws, and laws and practices that favor local companies;

• difficulties in staffing and managing foreign operations;

• natural disasters;

• trade restrictions or higher tariffs;

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• transportation delays;

• difficulties of managing distributors;

• less effective protection of intellectual property than is afforded to us in the United States or other developed countries;

• inadequate local infrastructure; and

• exposure to local banking, currency control and other financial-related risks.

The sudden disruption of the supply chain and/or the manufacture of our customer’s products caused by any of the foregoing risks could impact our results of operations by impairing our ability to timely and efficiently deliver our products. For example, the earthquake and tsunami that affected Japan in March 2011 disrupted the global supply chain for certain components important to our products and the recent flooding in Thailand has affected the supply chain and manufacturing of the products for a number of our customers.

Moreover, the international nature of our business subjects us to risk associated with the fluctuation of the U.S. dollar versus foreign currencies. Decreases in the value of the U.S. dollar versus currencies in jurisdictions where we have large fixed costs or our third party manufacturers have significant cost will increase the cost of such operations, which could harm our results of operations. For example, we have large fixed costs in Israel, which will become greater if the U.S. dollar declines in value versus the Israeli shekel. On the other hand, substantially all of our sales have been denominated in U.S. dollars.

We have made and may continue to make acquisitions and investments, which could divert management’s attention, cause ownership dilution to our shareholders, be difficult to integrate and adversely affect our results of operations and share price.

We expect to continue to make acquisitions of, and investments in, businesses that offer complementary products and technologies, augment our end market coverage, or enhance our technological capabilities. We may also enter into strategic alliances or joint ventures to achieve these goals. We cannot assure you that we will be able to identify suitable acquisition, investment, alliance or joint venture opportunities in the future, or that we will be able to consummate any such transactions or relationships on terms and conditions acceptable to us, or that such transactions or relationships will be successful.

Integrating newly acquired businesses or technologies typically entails many risks that could put a strain on our resources, could be costly and time consuming, and might not be successful. In addition, any acquisitions could materially harm our results of operations or liquidity as a result of either the issuance of dilutive equity securities, new debt or contingent liabilities, or payment of cash. Moreover, such acquisitions could divert our management’s attention from other business concerns and also result in customer dissatisfaction. In addition, we might lose key employees of the newly acquired organizations during the acquisition process. The acquisition of another company or its products and technologies may also require us to enter into a geographic or business market in which we have little or no prior experience.

We are exposed to potential impairment charges on certain assets.

We had approximately $2.0 billion of goodwill and $102.4 million of intangible assets on our balance sheet as of October 29, 2011. Under GAAP, we are required to review our intangible assets for impairment whenever events or changes in circumstances indicate that the carrying value of these assets may not be recoverable. We perform an annual assessment of goodwill at the beginning of our fiscal fourth quarter and we also assess the impairment of goodwill on an interim basis whenever events or changes in circumstances indicate that the carrying value of such assets may not be recoverable. If the businesses acquired fail to meet our expectations set out at the time of the acquisition or if our market capitalization adjusted for control premiums and other factors declines to below our carrying value, we could incur significant goodwill or intangible impairment charges, which could negatively impact our financial results. In addition, from time to time, we have made investments in other private companies. If the companies that we invest in are unable to execute their plans and succeed in their respective markets, we may not benefit from such investments, and we could potentially lose the amounts we invest. We evaluate our investment portfolio on a regular basis to determine if impairments have occurred. Impairment charges could have a material impact on our results of operations in any period.

We rely on third party distributors and manufacturers’ representatives and the failure of these distributors and manufacturers’ representatives to perform as expected could reduce our future sales.

From time to time, we enter into relationships with distributors and manufacturers’ representatives to sell our products, and we are unable to predict the extent to which these partners will be successful in marketing and selling our products. Moreover, many of our distributors and manufacturers’ representatives also market and sell competing products, and may terminate their relationships with us at any time. Our future performance will also depend, in part, on our ability to attract additional distributors or manufacturers’ representatives that will be able to market and support our products effectively, especially in markets in which we have not previously distributed our products. If we cannot retain or attract quality distributors or manufacturers’ representatives, our sales and results of operations will be harmed.

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Changes in financial accounting standards or practices or existing taxation rules or practices may adversely affect our financial results.

Changes in financial accounting standards or practices or changes in existing taxation rules or practices may have a significant effect on our reported results. New accounting pronouncements and taxation rules and varying interpretations of accounting pronouncements and taxation practice have occurred and may occur in the future. For example, the U.S. Congress may consider legislation affecting the taxation of foreign corporations and such legislation if enacted might adversely affect our future tax liabilities and have a material impact on our results of operations. Changes to existing rules or the questioning of current practices by regulators may adversely affect our reported financial results or the way we conduct our business or cause our stock price to decline.

Tax benefits that we receive may be terminated or reduced in the future, which would harm our results of operations and profitability.

In prior years, we have entered into agreements with the local governments in certain foreign jurisdictions where we have significant operations to provide us with favorable tax rates in those jurisdictions if certain criteria are met.

We obtained from the Minister of Finance of Bermuda under the Exempt Undertakings Tax Protection Act 1966, as amended, an undertaking that, in the event that Bermuda enacts legislation imposing tax computed on income and capital gains, those taxes should not apply to us until March 28, 2016.

The Economic Development Board of Singapore (the “EDB”) granted Pioneer Status to our wholly-owned subsidiary in Singapore in July 1999. This tax exemption was to expire after ten years, but the EDB in June 2006 agreed to extend the term to 15 years. As a result, we anticipate that a significant portion of the income we earn in Singapore during this period will be exempt from the Singapore income tax. We are required to meet several requirements as to investment, headcount and activities in Singapore to retain this status.

Under the Israeli Encouragement law of “approved or benefited enterprise,” two branches of Marvell Israel (“MISL”), the GTL branch and the cellular branch (formerly Marvell DSPC), are entitled to a beneficial tax program that includes reduced tax rates and exemption of certain income. The first program was approved for MISL in 1995 and the most recent was approved in 2003. Marvell DSPC has five approved programs, with the first approved in 1990 and the most recent a benefited enterprise with 2010 as the election year. The benefit period is generally 10 to 15 years and begins in the first year in which our Israeli divisions earn taxable income from the approved or benefited enterprises, provided the maximum period has not elapsed. Income from the approved or benefited enterprises is subject to reduced tax rates ranging between 0% and 10% or tax exemptions for fiscal years 2008 through 2020. A new amendment to the Encouragement law came into effect in 2011. MISL and DSPC will not apply the new amendment to the Encouragement law prior to fiscal year 2023.

During fiscal 2007, our Switzerland subsidiary received a ten-year Federal and Cantonal tax holiday on revenues from research and design and wafer supply trading activities that will expire in 2017. In fiscal 2011, we met the requirements of the initial five year period and we will receive the ongoing tax holiday benefits provided that we continue to meet the ongoing requirements.

If any of our tax agreements in any of these foreign jurisdictions were terminated, our results of our operations and profitability would be harmed.

We may be unable to protect our intellectual property, which would negatively affect our ability to compete.

We believe one of our key competitive advantages results from our collection of proprietary technologies that we have developed and acquired since our inception. If we fail to protect these intellectual property rights, competitors could sell products based on technology that we have developed that could harm our competitive position and decrease our revenues. We believe that the protection of our intellectual property rights is and will continue to be important to the success of our business. We rely on a combination of patent, copyright, trademark and trade secret laws, as well as nondisclosure agreements and other methods, to protect our proprietary technologies. We also enter into confidentiality or license agreements with our employees, consultants and business partners, and control access to and distribution of our documentation and other proprietary information. We have been issued several U.S. and foreign patents and have a number of pending U.S. and foreign patent applications. However, a patent may not be issued as a result of any applications or, if issued, claims allowed may not be sufficiently broad to protect our technology. In addition, it is possible that existing or future patents may be challenged, invalidated or circumvented. Despite our efforts, unauthorized parties may attempt to copy or otherwise obtain and use our products or proprietary technology. Monitoring unauthorized use of our technology is difficult, and the steps that we have taken may not prevent unauthorized use of our technology, particularly in foreign countries where the laws may not protect our proprietary rights as fully as in the United States. If our patents do not adequately protect our technology, our competitors may be able to offer products similar to ours, which would adversely impact our business and results of operations.

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Certain of our software (as well as that of our customers) may be derived from so-called “open source” software that is generally made available to the public by its authors and/or other third parties. Open source software is often made available under licenses, which impose certain obligations on us in the event we were to distribute derivative works of the open source software. These obligations may require us to make source code for the derivative works available to the public, and/or license such derivative works under a particular type of license, rather than the forms of license customarily used to protect our intellectual property. While we believe we have complied with our obligations under the various applicable licenses for open source software, in the event that the copyright holder of any open source software were to successfully establish in court that we had not complied with the terms of a license for a particular work, we could be required to release the source code of that work to the public and/or stop distribution of that work.

We may become involved with costly and lengthy litigation involving our patents and other intellectual property, which could subject us to liability, require us to indemnify our customers, require us to obtain or renew licenses, stop selling our products or force us to redesign our products.

Litigation involving patents and other intellectual property is widespread in the high-technology industry and is particularly prevalent in the semiconductor industry, where a number of companies and other entities aggressively bring numerous infringement claims to assert their patent portfolios. From time to time our subsidiaries and customers receive, and may continue to receive in the future, notices that allege claims of infringement, misappropriation or misuse of the intellectual property rights of third parties. For example, in recent years, multiple claims have been made against our subsidiaries and our customers related to standards-based technologies such as wireless LAN. In addition, we have had certain patent licenses with third parties that have not been renewed, and if we cannot successfully renew these licenses, our subsidiaries and customers could face claims of infringement. These claims could result in litigation and/or claims for indemnification, which, in turn, could subject us to significant liability for damages, attorneys fees and costs. Any potential intellectual property litigation also could force us to do one or more of the following:

• stop selling, offering for sale, making, having made or exporting products or using technology that contains the allegedly infringing intellectual property;

• limit or restrict the type of work that employees involved in such litigation may perform for us;

• pay substantial damages and/or license fees and/or royalties to the party claiming infringement that could adversely impact our liquidity or operating results;

• attempt to obtain or renew licenses to the relevant intellectual property, which licenses may not be available on reasonable terms or at all; and

• attempt to redesign those products that contain the allegedly infringing intellectual property.

We may also be required to indemnify some customers under our contracts if a third party alleges, or a court finds, that our products have infringed upon the proprietary rights of other parties. From time to time, we have agreed to indemnify select customers for claims made against our products, where such claims allege infringement of third party intellectual property rights, including, but not limited to, patents, registered trademarks and/or copyrights.

We have been named as a party to several lawsuits and we may be named in additional litigation in the future, all of which could result in an unfavorable outcome and have a material adverse effect on our business, financial condition, results of operations, cash flows, and the trading price for our securities.

We have been named as a party to several lawsuits and we may be named in additional litigation in the future. Please see “Note 10 – Commitments and Contingencies” of our notes to the Consolidated Financial Statements set forth in Part I, Item 1 of this Quarterly Report on Form 10-Q for a more detailed description of a number of the litigation matters we are currently engaged in. Under certain circumstances, we have contractual and other legal obligations to indemnify and to incur legal expenses on behalf of current and former directors and officers for these lawsuits. In addition, due to the high volatility of our stock price, we may be vulnerable to securities class action litigation. The ultimate outcome of these actions could have a material adverse effect on our business and the trading price for our securities. Litigation may be time-consuming, expensive, and disruptive to normal business operations, and the outcome of litigation is difficult to predict. The defense of these lawsuits may result in significant expenditures and the continued diversion of our management’s time and attention from the operation of our business, which could impede our business. In the event we were to receive an unfavorable outcome in any lawsuit, our business, financial condition, results of operations, cash flows and the trading price of our securities may be materially and adversely affected.

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As a result of the settlement with the SEC, we could not invoke the “safe harbor” for the forward-looking statements provision of the Private Securities Litigation Reform Act of 1995 for three years following the entry of judgment.

On May 8, 2008, we announced that we had reached an agreement with the SEC that concluded the SEC’s formal investigation of us with respect to our historic stock option granting practices. As a result of our SEC settlement, we forfeited for three years following the entry of judgment, or until June 20, 2011, the ability to invoke the “safe harbor” for forward-looking statements provided by the Private Securities Litigation Reform Act of 1995. This safe harbor would have provided us with enhanced protection from liability based on forward-looking statements if the forward-looking statements were either accompanied by meaningful cautionary statements or were made without actual knowledge that they were false or misleading. Because we could not benefit from the statutory safe harbor from June 2008 through June 2011, it may be more difficult for us to defend against any future claims based on any forward-looking statements issued during that timeframe.

We depend on key personnel to manage our business, and if we are unable to retain our current personnel and hire additional personnel, our ability to develop and successfully market our products could be harmed.

We believe our future success will depend in large part upon our ability to attract and retain highly skilled managerial, engineering, sales and marketing personnel. The loss of key employees or the inability to attract qualified personnel, including hardware and software engineers and sales and marketing personnel could delay the development and introduction of and harm our ability to sell our products. We typically do not enter into employment agreements with any of our key technical personnel, and their knowledge of our business and industry would be extremely difficult to replace.

The competition for qualified technical personnel with significant experience in the design, development, manufacturing, marketing and sales of integrated circuits is intense. It is important that we are able to identify, hire and retain engineers who are familiar with the intricacies of the design and manufacture of products based on analog technology. Our key technical personnel represent a significant asset and serve as the source of our technological and product innovations. We may not be successful in attracting and retaining sufficient numbers of technical personnel to develop new products or enhance existing products in a timely manner.

If our internal control over financial reporting or disclosure controls and procedures are not effective, there may be errors in our financial statements that could require a restatement or our filings may not be filed on a timely basis and investors may lose confidence in our reported financial information, which could lead to a decline in our stock price.

We believe that effective internal controls are necessary for us to provide reliable financial reports and effectively prevent fraud. Any inability to provide reliable financial reports or prevent fraud could harm our business. The Sarbanes-Oxley Act of 2002 requires management and our auditors to evaluate and assess the effectiveness of our internal control over financial reporting, as of the end of each year, and to include a management report assessing the effectiveness of our internal control over financial reporting in each Annual Report on Form 10-K.

Our management, including our Chief Executive Officer and Chief Financial Officer, does not expect that our internal control over financial reporting will prevent all error and all fraud. These inherent limitations include the realities that judgments in decision making can be faulty, breakdowns can occur because of simple errors, and errors discovered by personnel within control systems may not be properly disclosed and addressed. Controls can also be circumvented by the individual acts of some persons, by collusion of two or more people, or by management override of the controls. A control system, no matter how well designed and operated, can provide only reasonable, not absolute, assurance that the control system’s objectives will be met. Further, the design of a control system must reflect the fact that there are resource constraints, and the benefits of controls must be considered relative to their costs. In addition, we are consistently evaluating the design and operating effectiveness of our internal controls, a process which sometimes leads to modifications in such controls. These modifications could affect the overall effectiveness or evaluation of the control system in the future by us or our independent registered public accounting firm. The design of any system of controls is based in part on certain assumptions about the likelihood of future events, and we cannot assure you that any design will succeed in achieving its stated goals under all potential future conditions. Over time, controls may become inadequate because of changes in conditions or deterioration in the degree of compliance with policies or procedures. Because of the inherent limitations in a cost-effective control system, misstatements due to error or fraud may occur and not be detected.

Two of our officers and directors own a large percentage of our voting stock, and, together with another employee who is also a significant shareholder, are related by blood or marriage. These factors may allow the officers and directors as a group or the three related employees to influence the election of directors and the approval or disapproval of significant corporate actions.

Dr. Sehat Sutardja, our President and Chief Executive Officer, and Weili Dai, who serves as the Vice President and General Manager of Communications and Consumer Business of Marvell Semiconductor, Inc., are husband and wife, and Dr. Sehat Sutardja and Dr. Pantas Sutardja, our Vice President, Chief Technology Officer and Chief Research and Development Officer, are brothers. Together, these three individuals held approximately 17% of our outstanding common shares as of October 29, 2011. As a result, if these individuals act together, they may influence the election of our directors and the approval or disapproval of any significant corporate actions that require shareholder approval. This influence over our affairs might be adverse to the interests of other shareholders. For instance, the voting power of these individuals could have the effect of delaying or preventing an acquisition of us on terms that other shareholders may desire.

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Under Bermuda law, all of our officers, in exercising their powers and discharging their duties, must act honestly and in good faith with a view to our best interests and exercise the care, diligence and skill that a reasonably prudent person would exercise in comparable circumstances. Majority shareholders do not owe fiduciary duties to minority shareholders. As a result, the minority shareholders will not have a direct claim against the majority shareholders in the event the majority shareholders take actions that damage the interests of minority shareholders. Class actions and derivative actions are generally not available to shareholders under the laws of Bermuda, except that Bermuda courts would be expected to follow English case law precedent, which would permit a shareholder to bring an action in our name if the directors or officers are alleged to be acting beyond our corporate power, committing illegal acts or violating our Memorandum of Association or Third Amended and Restated Bye-Laws (“Bye-Laws”). Furthermore, consideration would be given by a Bermuda court to acts that are alleged to constitute a fraud against the minority shareholders or, for instance, where an act requiring the approval of a greater percentage of the company’s shareholders than those who actually approved it.

The Companies Act 1981 of Bermuda, as amended, provides that when one or more shareholders believes the affairs of a company are being conducted in a manner which is prejudicial to the interest of some of the shareholders, a Bermuda court, upon petition, may make such order as it sees fit, including an order regulating the conduct of the company’s affairs in the future or ordering the purchase of the shares of any shareholders by other shareholders or by the company, and in the case of a purchase of the shares by the company, for the reduction accordingly of the company’s capital or otherwise.

We rely upon certain critical information systems for the operation of our business, and the failure of any critical information system may result in serious harm to our business.

We are heavily dependent on our technology infrastructure and maintain and rely upon certain critical information systems for the effective operation of our business. These information systems include telecommunications, the Internet, our corporate intranet, various computer hardware and software applications, network communications and e-mail. These information systems are subject to damage or interruption from a number of potential sources including natural disasters, viruses, destructive or inadequate code, power failures, cyber attacks, and other events. To the extent that these information systems are under our control, we have implemented security procedures, such as virus protection software and emergency recovery processes, to address the outlined risks. While we believe that our information systems are appropriately controlled and that we have processes in place to adequately manage these risks, security procedures for information systems cannot be guaranteed to be failsafe and our inability to use or access these information systems at critical points in time could unfavorably impact the timely and efficient operation of our business.

We are subject to the risks of owning real property.

Our buildings in Santa Clara, California, Singapore, Etoy, Switzerland and Shanghai, China subject us to the risks of owning real property, which include:

• the possibility of environmental contamination and the costs associated with fixing any environmental problems;

• adverse changes in the value of these properties, due to interest rate changes, changes in the neighborhood in which the property is located, or other factors;

• the possible need for structural improvements in order to comply with zoning, seismic and other legal or regulatory requirements;

• the potential disruption of our business and operations arising from or connected with a relocation due to moving to or renovating the facility;

• increased cash commitments for improvements to the buildings or the property or both;

• increased operating expenses for the buildings or the property or both;

• possible disputes with tenants or other third parties related to the buildings or the property or both; and

• the risk of financial loss in excess of amounts covered by insurance, or uninsured risks, such as the loss caused by damage to the buildings as a result of earthquakes, floods and or other natural disasters.

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As we carry only limited insurance coverage, any incurred liability resulting from uncovered claims could adversely affect our financial condition and results of operations.

Our insurance policies may not be adequate to fully offset losses from covered incidents, and we do not have coverage for certain losses. For example, there is very limited coverage available with respect to the services provided by our third party foundries and assembly and test subcontractors. In the event of a natural disaster (such as an earthquake or Tsunami), political or military turmoil, widespread health issues or other significant disruptions to their operations, insurance may not adequately protect us from this exposure. We believe our existing insurance coverage is consistent with common practice and economic and availability considerations. However, if our insurance coverage is inadequate to protect us against unforeseen catastrophic losses, any uncovered losses could adversely affect our financial condition and results of operations.

We are incorporated in Bermuda, and, as a result, it may not be possible for our shareholders to enforce civil liability provisions of the securities laws of the United States. In addition, our Bye-Laws contain a waiver of claims or rights of action by our shareholders against our officers and directors, which will severely limit our shareholders’ right to assert a claim against our officers and directors under Bermuda law.

We are organized under the laws of Bermuda. As a result, it may not be possible for our shareholders to effect service of process within the United States upon us, or to enforce against us in United States courts judgments based on the civil liability provisions of the securities laws of the United States. There is significant doubt as to whether the courts of Bermuda would recognize or enforce judgments of United States courts obtained against us or our directors or officers based on the civil liability provisions of the securities laws of the United States or any state or hear actions brought in Bermuda against us or those persons based on those laws. The United States and Bermuda do not currently have a treaty providing for the reciprocal recognition and enforcement of judgments in civil and commercial matters. Therefore, a final judgment for the payment of money rendered by any federal or state court in the United States based on civil liability, whether or not based solely on United States federal or state securities laws, would not be automatically enforceable in Bermuda.

Our Bye-Laws contain a broad waiver by our shareholders of any claim or right of action, both individually and on our behalf, against any of our officers and directors. The waiver applies to any action taken by an officer or director, or the failure of an officer or director to take any action, in the performance of his or her duties with or for us, other than with respect to any matter involving any fraud or dishonesty on the part of the officer or director. This waiver will limit the rights of our shareholders to assert claims against our officers and directors unless the act complained of involves actual fraud or dishonesty. Thus, so long as acts of business judgment do not involve actual fraud or dishonesty, they will not be subject to shareholder claims under Bermuda law. For example, shareholders will not have claims against officers and directors for a breach of trust, unless the breach rises to the level of actual fraud or dishonesty.

Our Bye-Laws contain provisions that could delay or prevent a change in corporate control, even if the change in corporate control would benefit our shareholders.

Our Bye-Laws contain change in corporate control provisions, which include:

• authorizing the issuance of preferred stock without shareholder approval;

• providing for a classified board of directors; and

• requiring a vote of two-thirds of the outstanding shares to approve any change of corporate control in the event the action is not approved by at least 66 ²/₃% of the directors holding office at the date of the Board meeting to approve the action.

These change in corporate control provisions could make it more difficult for a third party to acquire us, even if doing so would be a benefit to our shareholders. However, beginning in calendar year 2011, our classified board of directors will be phased out and by calendar year 2013 all directors will be subject to annual election.

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Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

There were no sales of unregistered securities during the three months ended October 29, 2011.

Issuer Purchases of Equity Securities

The following table presents details of our repurchases during the three months ended October 29, 2011 (in thousands, except per share data):

Period	Total Number of Shares Purchased		Average Price Paid per Share		Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs		Approximated Dollar Value of Shares that May Yet Be Purchased Under the Plans or Programs (1)
July 31 – August 27, 2011		—	$	—		—	$	473,273
August 28 – September 24, 2011		5,787		13.85		5,787		393,144
September 25 – October 29, 2011		9,164		14.73		9,164		258,118
Total		14,951	$	14.39		14,951	$	258,118

(1) In July 2011, we announced that our board of directors authorized us to repurchase up to an additional $500 million of our outstanding common shares under our share repurchase program, which increased the total number of shares authorized for repurchase to $1.5 billion. We intend to effect the repurchase program in accordance with the conditions of Rule 10b-18 under the Exchange Act. The repurchase program will be subject to market conditions and other factors and does not obligate us to repurchase any dollar amount or number of our common shares. The program may be extended, modified, suspended or discontinued at any time. We may utilize privately negotiated transactions in order to effect our repurchases. Subsequent to the third fiscal quarter and through November 25, 2011, the Company repurchased additional 8.5 million shares for $119.5 million at an average price per share of $14.10, bringing its total repurchases under the repurchase program to $1.36 billion.

Item 6. Exhibits

(a) The following exhibits are filed as part of this report:

10.1 #	2000 Employee Stock Purchase Plan (as amended and restated October 31, 2011)
10.2 #	2000 Employee Stock Purchase Plan Form of Subscription Agreement
31.1	Certification of Chief Executive Officer as required pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
31.2	Certification of Chief Financial Officer as required pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
32.1*	Certification of Chief Executive Officer as required pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
32.2*	Certification of Chief Financial Officer as required pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
101.INS	XBRL Instance Document
101.SCH	XBRL Taxonomy Extension Schema Document
101.CAL	XBRL Taxonomy Extension Calculation Linkbase Document
101.DEF	XBRL Taxonomy Extension Definition Document
101.LAB	XBRL Taxonomy Extension Label Linkbase Document
101.PRE	XBRL Taxonomy Extension Presentation Linkbase Document

# Management contracts or compensation plans or arrangements in which directors or executive officers are eligible to participate.

* The certifications furnished in Exhibits 32.1 and 32.2 hereto are deemed to accompany this Form 10-Q and will not be deemed “filed” for purposes of Section 18 of the Exchange Act. Such certifications will not be deemed to be incorporated by reference into any filings under the Securities Act or the Exchange Act, except to the extent that the registrant specifically incorporates it by reference.

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

	MARVELL TECHNOLOGY GROUP LTD.
December 1, 2011	By:	/s/ Clyde R. Hosein
Date		Clyde R. Hosein
		Chief Financial Officer and Secretary

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EXHIBIT INDEX

10.1 #	2000 Employee Stock Purchase Plan (as amended and restated October 31, 2011)
10.2 #	2000 Employee Stock Purchase Plan Form of Subscription Agreement
31.1	Certification of Chief Executive Officer as required pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
31.2	Certification of Chief Financial Officer as required pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
32.1*	Certification of Chief Executive Officer as required pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
32.2*	Certification of Chief Financial Officer as required pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
101.INS	XBRL Instance Document
101.SCH	XBRL Taxonomy Extension Schema Document
101.CAL	XBRL Taxonomy Extension Calculation Linkbase Document
101.DEF	XBRL Taxonomy Extension Definition Document
101.LAB	XBRL Taxonomy Extension Label Linkbase Document
101.PRE	XBRL Taxonomy Extension Presentation Linkbase Document

# Management contracts or compensation plans or arrangements in which directors or executive officers are eligible to participate.

* The certifications furnished in Exhibits 32.1 and 32.2 hereto are deemed to accompany this Form 10-Q and will not be deemed “filed” for purposes of Section 18 of the Exchange Act. Such certifications will not be deemed to be incorporated by reference into any filings under the Securities Act or the Exchange Act, except to the extent that the registrant specifically incorporates it by reference.

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EX-10.1

Exhibit 10.1

MARVELL TECHNOLOGY GROUP LTD.

2000 EMPLOYEE STOCK PURCHASE PLAN

AS AMENDED AND RESTATED AS OF OCTOBER 31, 2011

1. Purpose. This Plan is intended to allow Employees of the Company and its Designated Subsidiaries to purchase Common Stock through accumulated Payroll deductions. This Plan includes two components: a Code Section 423 Plan Component and a Non-423 Plan Component. The Company’s intention is to have the Code Section 423 Plan Component qualify as an “employee stock purchase plan” under Section 423 of the Code (although the Company makes no undertaking or representation to maintain such qualification). The provisions of the Code Section 423 Plan Component, accordingly, will be construed so as to extend and limit Plan participation in a uniform and nondiscriminatory basis consistent with the requirements of Section 423 of the Code. In addition, this Plan authorizes the grant of Purchase Rights under the Non-423 Plan Component that do not qualify under Section 423 of the Code, pursuant to rules, procedures or sub-plans adopted by the Administrator that are designed to achieve tax, securities laws or other objectives for Participants and/or the Company. Except as otherwise indicated, the Non-423 Plan Component will operate and be administered in the same manner as the Code Section 423 Plan Component.

2. Defined Terms. The meanings of defined terms (generally, capitalized terms) in this Plan are provided in Section 23 (“Glossary”).

3. Eligibility.

(a) Participation. Any person who is an Employee on an Offering Date shall be eligible to participate in this Plan during the corresponding Offering Period, subject to the limitations in Sections 3(b) and 3(c).

(b) No Participation by Five-Percent Shareholders. Notwithstanding Section 3(a), an Employee shall not participate in this Plan during an Offering Period if immediately after the grant of a Purchase Right on the Offering Date, the Employee (or any other person whose stock would be attributed to the Employee under Section 424(d) of the Code) would own stock possessing five percent or more of the total combined voting power or value of all classes of stock of the Company or of any Subsidiary. For this purpose, an Employee is treated as owning stock that he or she could purchase by exercise of Purchase Rights or other options.

(c) $25,000 Annual Limitation. Notwithstanding Section 3(a), no Employee will be granted a Purchase Right under the Plan to the extent that his or her rights to purchase stock under all employee stock purchase plans (as defined in Section 423 of the Code) of the Company or any Parent of the Company accrue at a rate, which exceeds $25,000 worth of stock (determined at the Fair Market Value of the stock at the time such Purchase Right is granted) for each calendar year in which such Purchase Right is outstanding at any time, determined in accordance with Section 423 of the Code and the regulations thereunder.

4. Offering Periods. Except as otherwise determined by the Administrator:

(a) the first Offering Period after the Restatement Effective Date shall begin on December 8, 2011;

(b) a new Offering Period shall begin on the first trading day on or immediately following each June 8^th and December 8^th while this Plan is in effect;

(c) the duration of each Offering Period shall be approximately 24 months (measured starting from the applicable Offering Date and ending on the trading day immediately prior to the June 8^th or December 8^th, as applicable, occurring approximately 24-months thereafter);

(d) the Administrator will have the power to change the duration of Offering Periods (including the commencement dates thereof) with respect to future offerings without shareholder approval if such change is announced prior to the scheduled beginning of the first Offering Period to be affected thereafter;

(e) notwithstanding Section 4(d), in no event shall an Offering Period in the Code Section 423 Component have a duration in excess of 27 months; and

(f) an Offering Period shall terminate on the first date that no Participant is enrolled in it.

5. Participation.

(a) An Employee may become a Participant in this Plan by: (i) completing a subscription agreement, in such form as the Administrator may approve from time to time, and delivering it to the Administrator or (ii) following an electronic enrollment procedure determined by the Administrator, in either event, by 5 p.m. Pacific time on the applicable Offering Date, unless another time for filing the subscription agreement is set by the Administrator for all Employees with respect to a given Offering Period. For purposes herein, a subscription agreement and its analogous electronic enrollment form will both be referred to as the “subscription agreement.” The subscription agreement shall authorize Payroll deductions pursuant to this Plan and shall have such other terms as the Administrator may specify from time to time.

(b) At the end of an Offering Period, each Participant in the Offering Period who remains an Employee shall be automatically enrolled in the next succeeding Offering Period (a “Re-enrollment”) unless, in a manner and at a time specified by the Administrator, but in no event later than 5 p.m. Pacific time on the Offering Date of such succeeding Offering Period, the Participant notifies the Administrator in writing that the Participant does not wish to be re-enrolled. Re-enrollment shall be at the withholding percentage specified in the Participant’s most recent subscription agreement. No Participant shall be automatically re-enrolled whose participation has terminated by operation of Section 10.

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(c) If the Fair Market Value of a share of Common Stock on any Offering Date is less than it was on the first day of a then-concurrent Offering Period, each Participant in the concurrent Offering Period shall automatically be withdrawn from such concurrent Offering Period and shall become a Participant in the commencing Offering Period. Participation shall be at the withholding percentage specified in the Participant’s most recent (as of 5 p.m. Pacific time on the relevant Offering Date) subscription agreement. No Participant shall be automatically re-enrolled whose participation in this Plan has terminated by operation of Section 10.

6. Payroll Deductions.

(a) Payroll deductions under this Plan shall be in whole percentages, from a minimum of 1% up to a maximum (not to exceed 15%) established by the Administrator from time to time, as specified by the Participant in his or her subscription agreement in effect on the first day of an Offering Period. Payroll deductions for a Participant shall begin with the first payroll payment date of the Offering Period and shall end with the last payroll payment date of the Offering Period, unless sooner terminated by the Participant as provided in Section 10.

(b) A Participant’s Payroll deductions shall be credited to his or her account under this Plan. A Participant may not make any additional payments into his or her account.

(c) A Participant may reduce his or her Payroll deductions by any whole percentage (but not below 1%) at any time during an Offering Period, which will become effective as soon as administratively practicable. A Participant may change his or her Payroll deductions during an Offering Period on or before a date prescribed by the Administrator, effective as of the first business day after the next Purchase Date, by delivering a new subscription agreement authorizing the change in payroll deduction in the form (electronic or other procedure) provided by the Administrator for such purpose. Notwithstanding the foregoing, the Administrator may, in its sole discretion, limit the nature and/or number of Payroll deduction rate changes that may be made by Participants during any Offering Period, and may establish such other conditions or limitations as it deems appropriate for Plan administration.

(d) Notwithstanding the foregoing, to the extent necessary to comply with Section 423(b)(8) of the Code and Section 3(c), a Participant’s Payroll deductions may be decreased to 0% at any time during the Offering Period. Subject to Section 423(b)(8) of the Code and Section 3(c) hereof, Payroll deductions will recommence at the rate originally elected by the Participant effective as of the beginning of the first Offering Period scheduled to end in the following calendar year, unless terminated by the Participant as provided in Section 10.

(e) Notwithstanding any provisions to the contrary in the Plan, the Administrator may allow Participants to participate in the Plan via cash contributions instead of Payroll deductions if (i) Payroll deductions are not permitted under applicable local law, and (ii) the Participant is participating in the Non-423 Plan Component or the Administrator determines that cash contributions are permissible under Section 423 of the Code.

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7. Purchase Rights.

(a) Grant of Purchase Rights. On the Offering Date of each Offering Period, each Participant will be granted a Purchase Right to purchase on each Purchase Date during such Offering Period (at the applicable purchase price) up to a number of shares of Common Stock determined by dividing such Participant’s Payroll deductions accumulated prior to such Purchase Date and retained in the Participant’s account as of the Purchase Date by the applicable purchase price; provided that in no event will a Participant be permitted to purchase (x) on each Purchase Date more than 7,500 shares of Common Stock and (y) during each Offering Period more than 30,000 shares of Common Stock, in each case, subject to any adjustment pursuant to Section 17, and provided further that such purchase will be subject to the limitations set forth in Sections 3(b), 3(c) and 12. The Participant may accept the grant of such Purchase Right with respect to an Offering Period by electing to participate in the Plan in accordance with the requirements of Section 5. The Administrator may, for future Offering Periods, increase or decrease, in its absolute discretion, the maximum number of shares of Common Stock that a Participant may purchase during each Offering Period, subject to the limitations set forth in Sections 3(b), 3(c) and 12. Exercise of the Purchase Right will occur as provided in Section 8, unless the Participant has withdrawn pursuant to Section 10. The Purchase Right will expire on the last day of the Offering Period.

(b) Terms of Purchase Rights. Except as otherwise determined by the Administrator, each Purchase Right shall have the following terms:

(i) The per-share price of the shares subject to a Purchase Right shall be 85% of the lower of the Fair Market Value of a share of Common Stock on (a) the Offering Date on which the Purchase Right was granted and (b) the Purchase Date.

(ii) Payment for shares purchased by exercise of Purchase Rights shall be made only through Payroll deductions under Section 6.

(iii) Upon purchase or disposition of shares acquired by exercise of a Purchase Right, the Participant shall pay, or make provision satisfactory to the Administrator for payment of, all tax (and similar) withholdings that the Administrator determines, in its discretion, are required due to the acquisition or disposition, including without limitation any such withholding that the Administrator determines in its discretion is necessary to allow the Company and its Subsidiaries to claim tax deductions or other benefits in connection with the acquisition or disposition.

(iv) During his or her lifetime, a Participant’s Purchase Right is exercisable only by the Participant.

(v) Purchase Rights will in all respects be subject to the terms and conditions of this Plan, as interpreted by the Administrator from time to time.

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8. Purchase Dates; Purchase of Shares; Refund of Excess Cash.

(a) The Administrator shall establish one or more Purchase Dates for each Offering Period. Unless otherwise determined by the Administrator, the trading day immediately prior to each June 8 and December 8 in an Offering Period shall be a Purchase Date.

(b) Except as otherwise determined by the Administrator, and subject to subsection (c), below, each then-outstanding Purchase Right shall be exercised automatically on each Purchase Date, following addition to the Participant’s account of that day’s Payroll deductions, to purchase the maximum number of full shares of Common Stock at the applicable price using the Participant’s accumulated Payroll deductions. No fractional shares of Common Stock will be purchased; any Payroll deductions accumulated in a Participant’s account, which are not sufficient to purchase a full share will be promptly refunded to a Participant after a given Purchase Date. To the extent that Payroll deductions accumulate in a Participant’s account that exceed the aggregate purchase price of the maximum amount of shares purchasable on a given Purchase Date, such excess amounts will be promptly refunded to a Participant after the given Purchase Date.

(c) The shares purchased upon exercise of a Purchase Right shall be deemed to be transferred to the Participant on the Purchase Date.

9. Registration and Delivery of Share Certificates.

(a) Shares purchased by a Participant under this Plan will be registered in the name of the Participant, or in the name of the Participant and his or her spouse, or in the name of the Participant and joint tenant(s) (with right of survivorship), as designated by the Participant.

(b) As soon as administratively feasible after each Purchase Date, the Company shall deliver to the Participant a certificate representing the shares purchased upon exercise of a Purchase Right. If approved by the Administrator in its discretion, the Company may instead (i) deliver a certificate (or equivalent) to a broker for crediting to the Participant’s account or (ii) make a notation in the Participant’s favor of non-certificated shares on the Company’s stock records.

10. Withdrawal; Termination of Employment.

(a) A Participant may withdraw all, but not less than all, the Payroll deductions credited to his account under this Plan before a Purchase Date by giving written notice to the Administrator, in a form the Administrator prescribes from time to time, at least 15 days before the Purchase Date. Payroll deductions will then cease as to the Participant, no purchase of shares will be made for the Participant on the Purchase Date, and all Payroll deductions then credited to the Participant’s account will be refunded promptly.

(b) Upon termination of a Participant’s Continuous Employment for any reason, including retirement or death, all Payroll deductions credited to the Participant’s account will be promptly refunded to the Participant or, in the case of death, to the person or persons entitled thereto under Section 14, and the Participant’s Purchase Right will automatically terminate.

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(c) A Participant’s withdrawal from an offering will not affect the Participant’s eligibility to participate in a succeeding offering or in any similar plan that may be adopted by the Company.

11. Use of Funds; No Interest. Amounts withheld from Participants under this Plan shall constitute general funds of the Company, may be used for any corporate purpose, and need not be segregated from other funds unless otherwise required under local law, as determined by the Administrator (in which case, the affected Purchase Rights will be granted under the Non-423 Plan Component, if necessary). No interest shall accrue on a Participant’s Payroll deductions, except as may be required by applicable law, as determined by the Administrator, for Participants in the Non-423 Plan Component (or the Code Section 423 Plan Component if permitted under Code Section 423).

12. Number of Shares Reserved.

(a) The following numbers of shares of Common Stock are reserved for issuance under this Plan, and such number may be issued at any time before termination of this Plan (for the avoidance of doubt, all share numbers in this Section 12 reflect share numbers as adjusted for two separate 2 for 1 stock splits adopted by the Board in February 2004 and February 2006, respectively, and approved by the shareholders at the 2004 annual general meeting of shareholders held on May 28, 2004 and the 2006 annual general meeting of shareholders held on June 9, 2006, respectively):

(i) Beginning the date of approval of this Plan by the shareholders of the Company, 4,000,000 shares of Common Stock; and

(ii) Beginning the first business day of each calendar year starting January 1, 2010 or after, the lesser of an additional (A) 8,000,000 shares of Common Stock, or (B) 1.5% of the outstanding shares of capital stock on such date, or (C) an amount determined by the Board (provided that the amount approved by the Board shall not be greater than (A) or (B)). As of the Restatement Effective Date, 53,871,612 shares had been added to this Plan through the operation of prior versions of this Section 12(a)(ii). As of the Restatement Effective Date, 20,740,579 shares were available for issuance under this Plan.

(b) If the total number of shares that would otherwise be subject to Purchase Rights granted on an Offering Date exceeds the number of shares then available under this Plan (after deduction of all shares for which Purchase Rights have been exercised or are then exercisable), the Administrator shall make a pro-rata allocation of the available shares in a manner that it determines to be as uniform and equitable as practicable. In such event, the Administrator shall give written notice of the reduction and allocation to each Participant.

(c) The Administrator may, in its discretion, transfer shares reserved for issuance under this Plan into a plan or plans of similar terms, as approved by the Board, providing for the purchase of shares of Common Stock to employees of Designated Subsidiaries that do not (or do not thereafter) participate in this Plan. Such additional plans may, without limitation, provide for variances from the terms of this Plan to take into account special circumstances (such as foreign legal restrictions) affecting the employees of the Designated Subsidiaries.

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13. Administration. This Plan shall be administered by the Board or by such directors, officers, and employees of the Company as the Board may select from time to time (the “Administrator”). All costs and expenses incurred in administering this Plan shall be paid by the Company, provided that any taxes applicable to an Employee’s participation in this Plan may be charged to the Employee by the Company. The Administrator may make such rules and regulations as it deems necessary to administer this Plan and to interpret any provision of this Plan, and shall apply those rules and regulations so that all employees granted options under the Plan have the same rights and privileges (except that the right to purchase stock under the Plan may bear a uniform relationship to total compensation). Notwithstanding any provision to the contrary in this Plan, the Administrator may adopt rules or procedures relating to the operation and administration of the Non-423 Plan Component to accommodate the specific requirements of local laws and procedures for jurisdictions outside of the United States. Further, the Administrator is authorized to adopt sub-plans applicable to particular Designated Subsidiaries or locations under the Non-423 Plan Component. The rules of such sub-plans may take precedence over other provisions of this Plan, with the exception of Section 12(a) hereof, but unless otherwise superseded by the terms of such sub-plan, the provisions of this Plan shall govern the operation of such sub-plan. Any determination, decision, or action of the Administrator in connection with the construction, interpretation, administration, or application of this Plan or any right granted under this Plan shall be final, conclusive, and binding upon all persons, and no member of the Administrator shall be liable for any such determination, decision, or action made in good faith.

14. Designation of Beneficiary.

(a) A Participant may file a written designation of a beneficiary who is to receive any shares and cash, if any, from the Participant’s account under this Plan in the event of the Participant’s death.

(b) A designation of beneficiary may be changed by the Participant at any time by written notice. In the event of the death of a Participant, and in the absence of a beneficiary validly designated under this Plan who is living at the time of the Participant’s death, the Administrator shall deliver such shares and/or cash to the executor or administrator of the Participant’s estate, or if no such executor or administrator has been appointed (to the Administrator’s knowledge), the Administrator, in its discretion, may deliver such shares and/or cash to the spouse or to any one or more dependents or relatives of the Participant or, if no spouse, dependent, or relative is known to the Administrator, then to such other person as the Administrator may designate.

15. Transferability. Neither Payroll deductions credited to a Participant’s account nor any rights with regard to the exercise of a Purchase Right or to receive shares under this Plan may be assigned, transferred, pledged, or otherwise disposed of in any way (other than by will, the laws of descent and distribution, or as provided in Section 14) by the Participant. Any such attempt at assignment, transfer, pledge, or other disposition shall be without effect, except that the Administrator may treat such act as an election to withdraw funds in accordance with Section 10.

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16. Reports. Individual accounts will be maintained for each Participant in this Plan. Statements of account will be given to participating Employees promptly following each Purchase Date, setting forth the amounts of Payroll deductions, per-share purchase price, number of shares purchased, and remaining cash balance, if any.

17. Adjustments upon Changes in Capitalization.

(a) Subject to any required action by the shareholders of the Company, the number of shares of Common Stock covered by each unexercised Purchase Right and the number of shares of Common Stock authorized for issuance under this Plan but not yet been placed under a Purchase Right (collectively, the “Reserves”), as well as the price per share of Common Stock covered by each unexercised Purchase Right, shall be proportionately adjusted for any change in the number of issued shares of Common Stock resulting from a stock split, reverse stock split, stock dividend, combination or reclassification of the Common Stock, or any change in the number of shares of Common Stock effected without receipt of consideration by the Company (not counting shares issued upon conversion of convertible securities of the Company as “effected without receipt of consideration”). Such adjustment shall be made by the Board and shall be final, binding, and conclusive. Except as expressly provided herein, no issue by the Company of shares of stock of any class, or securities convertible into shares of stock of any class, shall affect, and no consequent adjustment shall be made with respect to, the number or price of shares of Common Stock subject to a Purchase Right.

(b) In the event of the proposed dissolution or liquidation of the Company, the then-current Offering Period will terminate immediately before the consummation of the proposed action, unless otherwise provided by the Board. In the event of a proposed sale of all or substantially all of the Company’s assets, or the merger of the Company with or into another corporation (if the Company’s shareholders own less than 50% of the total outstanding voting power in the surviving entity or a parent of the surviving entity after the merger), each Purchase Right under this Plan shall be assumed or an equivalent purchase right shall be substituted by the successor corporation or a parent or subsidiary of the successor corporation, unless the successor corporation does not agree to assume the Purchase Rights or to substitute equivalent purchase rights, in which case the Board may, in lieu of such assumption or substitution, accelerate the exercisability of Purchase Rights and allow Purchase Rights to be exercisable as to shares as to which they would not otherwise be exercisable, on terms and for a period that the Board determines in its discretion. To the extent that the Board accelerates exercisability of Purchase Rights as described above, it shall promptly so notify all Participants in writing.

(c) The Board may, in its discretion, also make provision for adjusting the Reserves, as well as the price per share of Common Stock covered by each outstanding Purchase Right, if the Company effects one or more reorganizations, recapitalizations, rights offerings, or other increases or reductions of shares of its outstanding Common Stock, or if the Company consolidates with or merges into any other corporation, in a transaction not otherwise covered by this Section 17.

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18. Amendment or Termination.

(a) The Board may at any time terminate or amend this Plan. No amendment may be made without prior approval of the shareholders of the Company (obtained in the manner described in Section 20) if it would increase the number of shares that may be issued under this Plan.

(b) The Board may elect to terminate any or all outstanding Purchase Rights at any time, except to the extent that exercisability of such Purchase Rights has been accelerated pursuant to Section 17(b). If this Plan is terminated, the Board may also elect to terminate Purchase Rights upon completion of the purchase of shares on the next Purchase Date or to permit Purchase Rights to expire in accordance with their terms (with participation to continue through such expiration dates). If Purchase Rights are terminated before expiration, any funds contributed to this Plan that have not been used to purchase shares shall be refunded to Participants as soon as administratively feasible.

19. Notices. All notices or other communications by a Participant to the Company or the Administrator under or in connection with this Plan shall be deemed to have been duly given when received in the form specified by the Administrator at the location, or by the person, designated by the Administrator for that purpose.

20. Shareholder Approval. This Plan was submitted to and approved by the shareholders of the Company for their approval within 12 months after the date this Plan was adopted by the Board.

21. Conditions upon Issuance of Shares.

(a) Shares shall not be issued with respect to a Purchase Right unless the exercise of such Purchase Right and the issuance and delivery of such shares pursuant thereto complies with all applicable provisions of law, domestic or foreign, including, without limitation, the Securities Act of 1933, as amended, the Securities Exchange Act of 1934, as amended, the rules and regulations promulgated thereunder, and the requirements of any stock exchange upon which the shares may then be listed, and shall be further subject to the approval of counsel for the Company with respect to such compliance.

(b) As a condition to the exercise of a Purchase Right, the Company may require the person exercising such Purchase Right to represent and warrant at the time of any such exercise that the shares are being purchased only for investment and without any present intention to sell or distribute such shares if, in the opinion of counsel for the Company, such a representation is required by any of the aforementioned applicable provisions of law.

22. Term of Plan. This Plan became effective upon its initial approval by the shareholders of the Company on June 17, 2000 as described in Section 20. It shall continue in effect for a term of 20 years unless sooner terminated under Section 18.

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23. Glossary. The following definitions apply for purposes of this Plan:

(a) “Administrator” means the Board or the persons appointed by the Board to administer this Plan pursuant to Section 13.

(b) “Board” means the Board of Directors of the Company.

(c) “Code” means the Internal Revenue Code of 1986, as amended.

(d) “Code Section 423 Plan Component” means the component of this Plan that is intended to meet the requirements set forth in Section 423(b) of the Code, as amended. The provisions of the Code Section 423 Plan Component shall be construed, administered and enforced in accordance with Section 423(b).

(e) “Common Stock” means the Common Shares of the Company.

(f) “Company” means Marvell Technology Group Ltd., a Bermuda company.

(g) “Continuous Employment” means the absence of any interruption or termination of service as an Employee. Continuous Employment shall not be considered interrupted in the case of a leave of absence agreed to in writing by the Company, provided that either (i) the leave does not exceed 90 days or (ii) re-employment upon expiration of the leave is guaranteed by contract or statute.

(h) “Designated Subsidiaries” means the Subsidiaries that have been designated by the Board from time to time in its sole discretion to participate in this Plan. The Administrator will determine whether Employees of any Designated Subsidiary shall participate in the Code Section 423 Plan Component or the Non-423 Plan Component.

(i) “Employee” means any person, including an officer, who is customarily employed for at least 20 hours per week and five months per year by the Company or one of its Designated Subsidiaries, other than an employee of a Designated Subsidiary under the Non-423 Plan Component, who, as of the Offering Date, is otherwise determined ineligible for participation in the Non-423 Plan Component, at the discretion of the Administrator. Whether an individual qualifies as an Employee shall be determined by the Administrator, in its sole discretion, by reference to Section 3401(c) of the Code and the regulations promulgated thereunder; unless the Administrator makes a contrary determination, the Employees of the Company shall, for all purposes of this Plan, be those individuals who satisfy the customary employment criteria set forth above and are carried as employees by the Company or a Designated Subsidiary for regular payroll purposes. Notwithstanding the foregoing, for Purchase Rights granted under the Non-423 Plan Component, Employee shall also mean any other employee of a Designated Subsidiary to the extent that local law requires participation in the Plan to be extended to such employee, as determined by the Administrator.

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(j) “Fair Market Value” means as, as of any date, the value of Common Stock as follows:

(i) If the Common Stock is quoted on an established stock exchange or national market system, including without limitation the National Association of Securities Dealers, Inc. Automated Quotation (“NASDAQ”) National Market System, Fair Market Value shall be the closing sales price (or the closing bid, if no sales are reported) as quoted on that exchange or system for the day of the determination, as reported in The Wall Street Journal or an equivalent source, or if the determination date is not a trading day, then on the most recent preceding trading day;

(ii) If the Common Stock is quoted on NASDAQ (but not on the National Market System) or regularly quoted by a recognized securities dealer but selling prices are not reported, Fair Market Value shall be the mean between the high bid and low asked prices for the Common Stock on the day of the determination, or on the most recent preceding trading day if the determination date is not a trading day; or

(iii) In the absence of an established market for the Common Stock, Fair Market Value shall be determined by the Administrator.

(k) “Non-423 Plan Component” means a component of this Plan that is not intended to meet the requirements set forth in Section 423(b) of the Code, as amended.

(l) “Offering Date” means the first trading day of an Offering Period.

(m) “Offering Period” means a period established by the Administrator pursuant to Section 4 during which Payroll deductions are accumulated from Participants and applied to the purchase of Common Stock. The duration and timing of an Offering Period may be changed pursuant to Sections 4 and 18.

(n) “Parent” means a “parent corporation,” whether now or hereafter existing, as defined in Section 424(e) of the Code.

(o) “Participant” means an Employee who has elected to participate, or has been deemed to participate by means of an automatic enrollment, in this Plan pursuant to Section 5.

(p) “Payroll” means all regular, straight-time gross earnings, exclusive of payments for overtime, shift premium, incentive compensation or payments, bonuses, and commissions.

(q) “Plan” means this Marvell Technology Group Ltd. 2000 Employee Stock Purchase Plan, as amended and restated, which includes a Code Section 423 Plan Component and a Non-423 Plan Component.

(r) “Purchase Date” means such trading days during each Offering Period as may be established by the Administrator for the purchase of Common Stock pursuant to Section 8.

(s) “Purchase Right” means a right to purchase Common Stock granted pursuant to Section 7.

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(t) “Restatement Effective Date” means October 31, 2011, the date of the amendment and restatement of the Plan.

(u) “Subsidiary” means, from time to time, any corporation, domestic or foreign, of which not less than 50% of the voting shares are held by the Company or another Subsidiary of the Company.

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EX-10.2

Exhibit 10.2

MARVELL TECHNOLOGY GROUP LTD.

2000 EMPLOYEE STOCK PURCHASE PLAN

SUBSCRIPTION AGREEMENT

ENROLLMENT DATE:                     I UNDERSTAND THAT THIS SUBSCRIPTION AGREEMENT SHALL REMAIN IN EFFECT THROUGHOUT SUCCESSIVE OFFERING PERIODS UNLESS TERMINATED BY ME.

1. I hereby elect to participate in the Marvell Technology Group Ltd. 2000 Employee Stock Purchase Plan, as Amended and Restated as of October 31, 2011 (the “Stock Purchase Plan” or the “Plan”) and subscribe to purchase common shares of the Company (“Common Stock”) in accordance with the Stock Purchase Plan, this Subscription Agreement, and the terms set forth in the Addendum hereto. Terms not otherwise defined herein have the same meaning attributed to them in the Stock Purchase Plan.

2. I hereby authorize payroll deductions from each paycheck in the amount of     % (maximum 15%, in whole percentages only) of my gross pay on each payday during the Offering Period in accordance with the Stock Purchase Plan. (No fractional percentages are permitted.) Such deductions are to continue for succeeding Offering Periods until I give written instructions for a change in or termination of such deductions or my participation is otherwise terminated in accordance with the Stock Purchase Plan.

3. I understand that said payroll deductions should be accumulated for the purchase of shares of Common Stock at the applicable purchase price determined in accordance with the Stock Purchase Plan. I further understand that, except as otherwise set forth in the Stock Purchase Plan, shares will be purchased for me automatically on each Purchase Date of the Offering Period unless I otherwise withdraw from the Stock Purchase Plan by giving written notice to the Company for such purpose at least 15 days before the Purchase Date. I understand that I may withdraw from the Stock Purchase Plan and have payroll deductions refunded (without interest) promptly at any time during the Offering Period as long as written notice of my withdrawal is provided to the Administrator, in required form, at least 15 days before the Purchase Date. I understand that the duration of Offering Periods (including the commencement dates thereof) shall be subject to change by the Administrator in accordance with Sections 4 and 18 of the Stock Purchase Plan.

4. I have received a copy of the complete Stock Purchase Plan. I have also received a copy of the complete Stock Purchase Plan Prospectus. I understand that my participation in the Stock Purchase Plan is in all respects subject to the terms of the Stock Purchase Plan.

5. Regardless of any action the Company or my employer, if different (the “Employer”) takes with respect to any or all income tax, social insurance, payroll tax, payment on account or other tax-related items related to my participation in the Stock Purchase Plan and legally applicable to me (“Tax-Related Items”), I acknowledge that the ultimate liability for all Tax-Related Items is and remains my responsibility and may exceed the amount actually withheld by the Company or the Employer. I further acknowledge that the Company and/or the Employer (1) make no representations or undertakings regarding the treatment of any Tax-Related Items in connection with any aspect of my participation in the Stock Purchase Plan, including, but not limited to, the grant of the Purchase Right, the purchase of shares of Common Stock under the Stock Purchase Plan, the subsequent sale of shares of Common Stock acquired under the Stock Purchase Plan and the receipt of any dividends; and (2) do not commit to and are under no obligation to structure the terms of the grant or any aspect of the Purchase Right to reduce or eliminate my liability for Tax-Related Items or achieve any particular tax result. Further, if I have become subject to tax in more than one jurisdiction between the date my participation began and the date of any relevant taxable event, I acknowledge that the Company and/or the Employer (or former employer, as applicable) may be required to withhold or account for Tax-Related Items in more than one jurisdiction.

Prior to any relevant taxable or tax withholding event, as applicable, I will pay or make adequate arrangements satisfactory to the Company and/or the Employer to satisfy all Tax-Related Items. In this regard, I authorize the Company and/or the Employer, or their respective agents, at their discretion, to satisfy the obligations with regard to all Tax-Related Items by one or a combination of the following: (a) withholding from my wages or other cash compensation paid to me by the Company and/or the Employer; or (b) withholding from proceeds of the sale of shares of Common Stock acquired upon

exercise of the Purchase Right either through a voluntary sale or through a mandatory sale arranged by the Company (on my behalf pursuant to this authorization); or (c) withholding in shares of Common Stock to be issued upon exercise of the Purchase Right.

To avoid negative accounting treatment, the Company may withhold or account for Tax-Related Items by considering applicable minimum statutory withholding amounts or other applicable withholding rates. If the obligation for Tax-Related Items is satisfied by withholding in shares of Common Stock, for tax purposes, I will be deemed to have been issued the full number of shares of Common Stock subject to the exercised Purchase Right, notwithstanding that a number of shares of Common Stock are held back solely for the purpose of paying the Tax-Related Items due as a result of my participation in the Stock Purchase Plan.

Finally, I shall pay to the Company or the Employer any amount of Tax-Related Items that the Company or the Employer may be required to withhold or account for as a result of my participation in the Stock Purchase Plan that cannot be satisfied by the means previously described. The Company may refuse to purchase shares of Common Stock on my behalf under the Stock Purchase Plan and refuse to deliver the shares of Common Stock if I fail to comply with my obligations in connection with the Tax-Related Items.

6. By enrolling in the Stock Purchase Plan and by authorizing payroll deductions, I acknowledge that: (a) the Stock Purchase Plan is established voluntarily by the Company, it is discretionary in nature, and it may be modified, amended, suspended, or terminated by the Company at any time; (b) the grant of the Purchase Right is voluntary and occasional and does not create any contractual or other right to receive future Purchase Rights, or benefits in lieu of Purchase Rights, even if Purchase Rights have been granted repeatedly in the past; (c) all decisions with respect to future grants of Purchase Rights, if any, will be at the sole discretion of the Company; (d) my participation in the Stock Purchase Plan shall not create a right to further employment with the Company or the Employer and shall not interfere with the ability of the Company or the Employer to terminate my employment relationship at any time; (e) I am voluntarily participating in the Stock Purchase Plan; (f) the Purchase Right and the shares of Common Stock subject to the Purchase Right are extraordinary items that do not constitute compensation of any kind for services of any kind rendered to the Company or the Employer, and are outside the scope of my employment contract, if any; (g) the Purchase Right and the shares of Common Stock subject to the Purchase Right are not intended to replace any pension rights or compensation; (h) the Purchase Right and the shares of Common Stock subject to the Purchase Right are not part of normal or expected compensation or salary for any purposes, including, but not limited to, calculating any severance, resignation, termination, redundancy, end of service payments, bonuses, long-service awards, pension or retirement or welfare benefits or similar payments, and in no event should be considered as compensation for, or relating in any way to, past services for the Company, the Employer, or any Parent or Subsidiary; (i) the grant of the Purchase Right and my participation in the Stock Purchase Plan will not be interpreted to form an employment contract or relationship with the Company, the Employer, or any Parent or Subsidiary; (j) the future value of the underlying shares of Common Stock purchased or to be purchased under the Stock Purchase Plan is unknown and cannot be predicted with certainty; (k) if shares of Common Stock are purchased for me on a Purchase Date, the value of those shares of Common Stock acquired under the Stock Purchase Plan may increase or decrease in value, even below the purchase price; (l) in consideration of the grant of the Purchase Right, no claim or entitlement to compensation or damages shall arise from forfeiture of the Purchase Right resulting from termination of my Continuous Employment by the Company or the Employer (for any reason whatsoever and whether or not in breach of local labor laws), and I irrevocably release the Company and the Employer from any such claim that may arise; if, notwithstanding the foregoing, any such claim is found by a court of competent jurisdiction to have arisen, then, by enrolling in the Stock Purchase Plan and authorizing payroll deductions, I shall be deemed irrevocably to have waived my entitlement to pursue such claim; (m) in the event of termination of my Continuous Employment (whether or not in breach of local labor laws), my right to participate in and to purchase shares of Common Stock under the Stock Purchase Plan, if any, will terminate effective as of the date that I am no longer actively employed and will not be extended by any notice period mandated under local law (e.g., active employment would not include a period of “garden leave” or similar period pursuant to local law); the Administrator shall have the exclusive discretion to determine when I am no longer actively employed for purposes of my participation in the Stock Purchase Plan; and (n) the Purchase Right and the benefits under the Stock Purchase Plan, if any, will not automatically transfer to another company in the case of a merger, take-over, or transfer of liability.

7. The Company is not providing any tax, legal, or financial advice, nor is the Company making any recommendations regarding my participation in the Stock Purchase Plan, or my acquisition or sale of the underlying shares of Common Stock. I am hereby advised to consult with my own personal tax, legal, and financial advisors regarding my participation in the Stock Purchase Plan before taking any action related to the Stock Purchase Plan.

8. By enrolling in the Stock Purchase Plan and authorizing payroll deductions, I explicitly and unambiguously consent to the collection, use and transfer, in electronic or other form, of my personal data as described in this Subscription Agreement by and among, as applicable, the Employer, the Company and its Parent and Subsidiary for the exclusive purpose of implementing, administering and managing my participation in the Stock Purchase Plan. I understand that the Company and the Employer may hold certain personal information about me, including, but not limited to, my name, home address and telephone number, date of birth, social insurance number or other identification number, salary, nationality, job title, any shares of Common Stock or directorships held in the Company, details of all Purchase Rights or any other entitlement to shares of Common Stock awarded, canceled, exercised, vested, unvested or outstanding in my favor, for the exclusive purpose of implementing, administering and managing the Stock Purchase Plan (“Data”). I understand that Data will be transferred to the Stock Purchase Plan broker or such other stock plan service provider as may be selected by the Company, which is assisting the Company with the implementation, administration and management of the Stock Purchase Plan. I understand that the recipients of Data may be located in my country or elsewhere, and that the recipients’ country may have different data privacy laws and protections than my country. I authorize the Company, the broker, and any other possible recipients that may assist the Company (presently or in the future) with implementing, administering, and managing the Stock Purchase Plan to receive, possess, use, retain, and transfer Data, in electronic or other form, for the sole purpose of implementing, administering, and managing my participation in the Stock Purchase Plan.

If I am employed outside of the U.S., I understand that I may request a list with the names and addresses of any potential recipients of the Data by contacting my local human resources representative. I understand that Data will be held only as long as is necessary to implement, administer, and manage my participation in the Stock Purchase Plan. I understand that I may, at any time, view Data, request additional information about the storage and processing of Data, require any necessary amendments to Data or refuse or withdraw the consents herein, in any case without cost, by contacting in writing the Company’s human resources department. I understand, however, that refusing or withdrawing my consent may affect my ability to participate in the Stock Purchase Plan. For more information on the consequences of my refusal to consent or withdrawal of consent, I understand that I may contact the Company’s human resources department.

9. The Purchase Right and the provisions of this Subscription Agreement will be governed by, and subject to, the laws of the State of California, without giving effect to the conflict of law principles thereof. For purposes of litigating any dispute that arises under the grant or this Subscription Agreement, the parties hereby submit to and consent to the exclusive jurisdiction of the State of California and agree that such litigation will be conducted in the courts of Santa Clara County, California, or the federal courts for the United States for the Northern District of California, and no other courts, where this grant is made and/or to be performed.

10. If I have received this Subscription Agreement or any other document related to the Stock Purchase Plan translated into a language other than English, and if the meaning of the translated version is different from the English version, the English version will control.

11. The Company may, in its sole discretion, decide to deliver any documents related to current or future participation in the Stock Purchase Plan by electronic means. I hereby consent to receive such documents by electronic delivery and agree to participate in the Stock Purchase Plan through an on-line or electronic system established and maintained by the Company or a third party designated by the Company.

12. The provisions of this Subscription Agreement are severable and if any one or more provisions are determined to be illegal or otherwise unenforceable, in whole or in part, the remaining provisions shall nevertheless be binding and enforceable.

13. Notwithstanding any provisions in this Subscription Agreement, the Purchase Right shall be subject to any special terms and conditions set forth in the Addendum to this Subscription Agreement. Moreover, if I relocate to one of the countries included in the Addendum, the special terms and conditions for such country will apply to me, to the extent the Company determines that the application of such terms and conditions is necessary or advisable in order to comply with local law or facilitate the administration of the Stock Purchase Plan. The Addendum constitutes part of this Subscription Agreement.

14. The Company reserves the right to impose other requirements on my participation in the Stock Purchase Plan, on the Purchase Right, and on any shares of Common Stock acquired under the Stock Purchase Plan, to the extent the Company determines it is necessary or advisable in order to comply with local law or facilitate the administration of the Stock Purchase Plan, and to require me to sign any additional agreements or undertakings that may be necessary to accomplish the foregoing.

15. I hereby agree to be bound by, and understand that my participation in the Stock Purchase Plan is in all respects subject to, the terms of the Stock Purchase Plan and this Subscription Agreement, including the Addendum. The effectiveness of this Subscription Agreement and my participation in the Stock Purchase Plan is dependent upon my eligibility to participate in the Stock Purchase Plan.

EMPLOYEE SIGNATURE
EMPLOYEE NAME (PLEASE PRINT FULL LEGAL NAME)	EMPLOYEE ID # (PAYROLL FILE NUMBER)

EX-31.1

Exhibit 31.1

CERTIFICATION

I, Sehat Sutardja, Ph. D., certify that:

1. I have reviewed this quarterly report on Form 10-Q of Marvell Technology Group Ltd.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: December 1, 2011	By:	/s/ SEHAT SUTARDJA
		Sehat Sutardja, Ph.D.
		President and Chief Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATION

I, Clyde R. Hosein, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Marvell Technology Group Ltd.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: December 1, 2011	By:	/s/ CLYDE R. HOSEIN
		Clyde R. Hosein
		Chief Financial Officer and Secretary

EX-32.1

Exhibit 32.1

CERTIFICATION

I, Sehat Sutardja Ph.D., the president and chief executive officer of Marvell Technology Group Ltd. (the “Company”), certify for the purposes of 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to the best of my knowledge,

(i) the Quarterly Report of the Company on Form 10-Q for the fiscal quarter ended October 29, 2011 (the “Report”), fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

(ii) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/S/ SEHAT SUTARDJA

Sehat Sutardja, Ph.D.

President and Chief Executive Officer

Date: December 1, 2011

EX-32.2

Exhibit 32.2

CERTIFICATION

I, Clyde Hosein, the chief financial officer and secretary of Marvell Technology Group Ltd. (the “Company”), certify for the purposes of 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to the best of my knowledge,

(i) the Quarterly Report of the Company on Form 10-Q for the fiscal quarter ended October 29, 2011 (the “Report”), fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

(ii) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ CLYDE R. HOSEIN

Clyde R. Hosein

Chief Financial Officer and Secretary

Date: December 1, 2011

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Components of Accumulated Other Comprehensive Income (Detail) (USD $) In Thousands, unless otherwise specified	Oct. 29, 2011	Jan. 29, 2011
Accumulated Other Comprehensive Income (Loss) [Line Items]
Unrealized gain on marketable securities	$ 1,985	$ 3,504
Unrealized loss on auction rate securities	(1,332)	(1,624)
Unrealized loss on cash flow hedges	(953)	(793)
Other	5	5
Accumulated other comprehensive income (loss)	$ (295)	$ 1,092

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Activity Related to the Non-Vested Portion of the Restricted Stock Units (Detail) (Restricted Stock Units (RSUs), USD $) In Thousands, except Per Share data, unless otherwise specified	9 Months Ended
	Oct. 29, 2011
Restricted Stock Units (RSUs)
Restricted Stock Units Outstanding
Beginning Balance	5,486
Granted	6,477
Released	(1,320)
Canceled/Forfeited	(566)
Ending Balance	10,077
Weighted Average Grant Date Fair Value
Beginning Balance	$ 18.75
Granted	$ 15.91
Released	$ 19.62
Canceled/Forfeited	$ 16.88
Ending Balance	$ 16.91

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Restructuring - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Oct. 29, 2011	Oct. 30, 2010 Research and development
Restructuring Cost and Reserve [Line Items]
Charge to write-down the carrying value to fair value of building classified as held for sale		$ 1.1
Proceeds from sale of building held for sale	$ 6.8

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Total Stock Compensation by Expense (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Oct. 29, 2011	Oct. 30, 2010	Oct. 29, 2011	Oct. 30, 2010
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	$ 30,611	$ 29,541	$ 88,446	$ 87,126
Cost of goods sold
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	1,940	1,818	5,551	5,746
Research and development
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	21,905	19,795	63,626	60,735
Selling and marketing
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	3,402	3,208	9,263	8,778
General and administrative
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	$ 3,364	$ 4,720	$ 10,006	$ 11,867

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Acquired Intangible Assets, Net (Detail) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Oct. 29, 2011 Year		Jan. 29, 2011
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amounts	$ 1,150,346		$ 1,135,940
Accumulated Amortization and Write-Offs	(1,047,914)		(1,011,309)
Net Carrying Amount	102,432		124,631
Purchased technology
Acquired Finite-Lived Intangible Assets [Line Items]
Minimum useful lives	1
Maximum useful lives	7
Gross Carrying Amounts	739,605		726,040
Accumulated Amortization and Write-Offs	(708,691)		(698,877)
Net Carrying Amount	30,914		27,163
Core technology
Acquired Finite-Lived Intangible Assets [Line Items]
Minimum useful lives	1
Maximum useful lives	8
Gross Carrying Amounts	212,650		212,650
Accumulated Amortization and Write-Offs	(172,222)		(155,359)
Net Carrying Amount	40,428		57,291
Trade name
Acquired Finite-Lived Intangible Assets [Line Items]
Minimum useful lives	1
Maximum useful lives	5
Gross Carrying Amounts	350		350
Accumulated Amortization and Write-Offs	(328)		(299)
Net Carrying Amount	22		51
Customer contracts
Acquired Finite-Lived Intangible Assets [Line Items]
Minimum useful lives	4
Maximum useful lives	7
Gross Carrying Amounts	187,200		187,200
Accumulated Amortization and Write-Offs	(166,673)		(156,774)
Net Carrying Amount	20,527		30,426
In-process research and development
Acquired Finite-Lived Intangible Assets [Line Items]
Useful Lives		[1]
Gross Carrying Amounts	10,541		9,700
Net Carrying Amount	$ 10,541		$ 9,700

[1] Upon completion of the project, the related in-process research and development ("IPR&D") assets will be amortized over its estimated useful life. If any of the projects are abandoned or the forecast of the project indicates that the fair value is less than the carrying amount, the Company will be required to impair the related IPR&D asset.

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Other Non-Current Assets (Detail) (USD $) In Thousands, unless otherwise specified	Oct. 29, 2011	Jan. 29, 2011
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Line Items]
Technology and other licenses	$ 54,355	$ 51,642
Deferred tax assets	25,703	27,671
Investments in privately held companies	6,073	3,950
Deferred compensation	4,956	6,169
Prepayments for foundry capacity	4,725	5,289
Severance fund	2,608	4,819
Other	12,500	11,840
Other non-current assets	$ 110,920	$ 111,380

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Weighted Average Assumptions used to Calculate the Fair Value of Each Time-Based Equity Award Using Black-Scholes Option Pricing Model (Detail) (USD $)	3 Months Ended		9 Months Ended
	Oct. 29, 2011 Year	Oct. 30, 2010 Year	Oct. 29, 2011 Year	Oct. 30, 2010 Year
Time Based Option Award
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Estimated fair value	$ 5.97	$ 7.40	$ 6.08	$ 9.34
Volatility	49.00%	53.00%	43.00%	53.00%
Expected term (in years)	4.8	4.7	4.8	4.7
Risk-free interest rate	1.00%	1.40%	2.00%	2.20%
Dividend yield
Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Estimated fair value	$ 4.09	$ 5.14	$ 4.09	$ 5.14
Volatility	46.00%	53.00%	46.00%	53.00%
Expected term (in years)	0.5	0.5	0.5	0.5
Risk-free interest rate	0.20%	0.20%	0.20%	0.20%
Dividend yield

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Shareholders' Equity (Tables)

9 Months Ended

Oct. 29, 2011

Disclosure of Share-based Compensation Arrangements by Share-based Payment Award

Activity under the Company’s stock option plans for the nine months ended October 29, 2011 is summarized below (in thousands, except per share amounts):

	Time-Based Options					Market-Based Options					Total
	Options Outstanding			Weighted Average Exercise Price		Options Outstanding			Weighted Average Exercise Price		Options Outstanding			Weighted Average Exercise Price
Balance at January 29, 2011		56,325		$	11.96		—		$	—		56,325		$	11.96
Granted		3,234		$	15.42		3,149		$	15.43		6,383		$	15.42
Canceled/Forfeited		(1,325	)	$	14.68		(25	)	$	15.43		(1,350	)	$	14.69
Exercised		(3,166	)	$	7.85		—		$	—		(3,166	)	$	7.85
Balance at October 29, 2011		55,068		$	12.33		3,124		$	15.43		58,192		$	12.50
Vested or expected to vest at October 29, 2011		54,077		$	12.31		2,646		$	15.43		56,723		$	12.46
Exercisable at October 29, 2011		42,054		$	12.55		—		$	—		42,054		$	12.55

Schedule of Nonvested Share Activity

Included in the following table is activity related to the non-vested portion of the restricted stock units as follows (in thousands, except for prices):

	Restricted Stock Units Outstanding			Weighted Average Grant Date Fair Value
Balance at January 29, 2011		5,486		$	18.75
Granted		6,477		$	15.91
Released		(1,320	)	$	19.62
Canceled/Forfeited		(566	)	$	16.88
Balance at October 29, 2011		10,077		$	16.91

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Restructuring Charges (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Oct. 29, 2011	Oct. 30, 2010	Oct. 29, 2011	Oct. 30, 2010
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 105	$ 259	$ 1,291	$ 2,504
Research and development
Restructuring Cost and Reserve [Line Items]
Restructuring charges	1	187	308	1,686
General and administrative
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 104	$ 72	$ 983	$ 818

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Financial Assets that were Accounted for at Fair Value (Detail) (Fair Value, Measurements, Recurring, USD $) In Thousands, unless otherwise specified	Oct. 29, 2011	Jan. 29, 2011
Assets
Total assets	$ 1,775,762	$ 2,621,005
Liabilities
Total liabilities	797	804
Cash equivalents | Money market funds
Assets
Cash equivalents	19,242	1,230,616
Cash equivalents | US government and agencies
Assets
Cash equivalents	13,000	106,487
Cash equivalents | Corporate debt securities
Assets
Cash equivalents	11,499	9,797
Cash equivalents | Time Deposit
Assets
Cash equivalents	132,441	159,938
Short-term Investments | US government and agencies
Assets
Investments	759,858	431,683
Short-term Investments | Corporate debt securities
Assets
Investments	813,896	651,273
Long-term investments | Auction rate securities
Assets
Investments	23,218	26,226
Other non-current assets | Severance pay fund
Assets
Other non-current asset	2,608	4,819
Accrued Liabilities | Forward contracts
Liabilities
Forward contracts	797	804
Prepaids and other current assets | Forward contracts
Assets
Prepaids and other current assets		166
Level 1
Assets
Total assets	925,409	1,931,149
Level 1 | Cash equivalents | Money market funds
Assets
Cash equivalents	19,242	1,230,616
Level 1 | Cash equivalents | US government and agencies
Assets
Cash equivalents	13,000	106,487
Level 1 | Cash equivalents | Time Deposit
Assets
Cash equivalents	132,441	159,938
Level 1 | Short-term Investments | US government and agencies
Assets
Investments	759,858	431,683
Level 1 | Other non-current assets | Severance pay fund
Assets
Other non-current asset	868	2,425
Level 2
Assets
Total assets	827,135	663,630
Liabilities
Total liabilities	797	804
Level 2 | Cash equivalents | Corporate debt securities
Assets
Cash equivalents	11,499	9,797
Level 2 | Short-term Investments | Corporate debt securities
Assets
Investments	813,896	651,273
Level 2 | Other non-current assets | Severance pay fund
Assets
Other non-current asset	1,740	2,394
Level 2 | Accrued Liabilities | Forward contracts
Liabilities
Forward contracts	797	804
Level 2 | Prepaids and other current assets | Forward contracts
Assets
Prepaids and other current assets		166
Level 3
Assets
Total assets	23,218	26,226
Level 3 | Long-term investments | Auction rate securities
Assets
Investments	$ 23,218	$ 26,226

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Supplemental Financial Information - Additional Information (Detail) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Oct. 29, 2011	Oct. 30, 2010	Oct. 29, 2011	Oct. 30, 2010
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive options excluded from the computation of diluted net income per share	23.8	17.1	20.4	12.5
Anti-dilutive options excluded from the computation of diluted net income per share, weighted average exercise price	$ 18.26	$ 19.84	$ 18.92	$ 21.29
Shares that contain a market condition for vesting excluded from the computation of diluted net income per share	3.1		3.1

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Shareholders' Equity - Additional Information (Detail) (USD $)	9 Months Ended		9 Months Ended	3 Months Ended	9 Months Ended				3 Months Ended		9 Months Ended		1 Months Ended	9 Months Ended	1 Months Ended		3 Months Ended		9 Months Ended		1 Months Ended
	Oct. 29, 2011	Jan. 29, 2011	Oct. 29, 2011 Restricted Stock Units (RSUs) Year	Apr. 30, 2011 Market Based Option Award	Oct. 29, 2011 Market Based Option Award Year	Oct. 29, 2011 Time Based Option Award Year	Jan. 29, 2011 Time Based Option Award	Oct. 29, 2011 Combined Option Plan And Stock Award Activity	Oct. 29, 2011 Employee Stock Purchase Plan, 2000 Plan	Oct. 29, 2011 Employee Stock Purchase Plan, 2000 Restated Plan	Oct. 29, 2011 Employee Stock Purchase Plan, 2000 Restated Plan	Oct. 30, 2010 Employee Stock Purchase Plan, 2000 Restated Plan	Aug. 31, 2010 Stock Repurchase Plan 2010	Oct. 29, 2011 Stock Repurchase Plan 2010	Jul. 30, 2011 Common Stock Repurchase Program	Mar. 31, 2011 Common Stock Repurchase Program	Oct. 29, 2011 Common Stock Repurchase Program	Oct. 30, 2010 Common Stock Repurchase Program	Oct. 29, 2011 Common Stock Repurchase Program	Oct. 30, 2010 Common Stock Repurchase Program	Nov. 25, 2011 Repurchase of Equity Common Stock Repurchase Program
Stockholders Equity Note [Line Items]
Stock options issued with a market price condition for a group of senior employees	6,383,000			3,100	3,149,000	3,234,000
Terms of options					If the market price condition is not met within five years from the date of grant, the options automatically expire.
Options vested and expected to vest, aggregate intrinsic value					$ 0	$ 190,500,000
Options vested and expected to vest, weighted average remaining contractual term (in years)					9.5	4.7
Employee stock purchase plan, shares issued											2,400,000	5,400,000
Employee stock purchase plan, weighted-average price of shares issued										$ 12.57	$ 12.57	$ 5.17
Unrecognized compensation cost								176,200,000		1,700,000	1,700,000
Unrecognized share based compensation cost, weighted-average period of recognition (in years)			1.6		2.2	1.9
Description of the plan									The 2000 Employee Stock Purchase Plan	October 22, 2009 (the "Purchase Plan")
Shares reserved for issuance	58,192,000	56,325,000			3,124,000	55,068,000	56,325,000			20,700,000	20,700,000
Stock repurchase program, terms														In August 2010, the Company announced that its board of directors had authorized a stock repurchase program of up to $500 million of the Company’s common shares in open market, privately negotiated or block transactions.					In March 2011, the Company announced that its board of directors authorized the Company to repurchase up to an additional $500 million, for a total of $1 billion, of its outstanding common shares. In July 2011, the Company announced that its board of directors authorized the Company to repurchase up to an additional $500 million of its outstanding common shares under its share repurchase program, for a total of $1.5 billion. The repurchase program is subject to market conditions and other factors and does not obligate the Company to repurchase any dollar amount or number of its common shares. The program may be extended, modified, suspended or discontinued at any time.
Stock repurchase program, additional authorized amount															500,000,000	500,000,000
Stock repurchase program, amount authorized													500,000,000		1,500,000,000	1,000,000,000
Stock repurchase program, shares repurchased																	15,000,000	3,600,000	74,300,000	3,600,000	8,500,000
Stock repurchase program, amount repurchased																	215,200,000	60,600,000	1,200,000,000	60,600,000	119,500,000
Stock repurchase program, additional shares repurchased, average price per share																					$ 14.10
Stock repurchase program, amount remaining																	258,100,000
Stock repurchase program, total amount of repurchases																	$ 1,240,000,000		$ 1,240,000,000		$ 1,360,000,000

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Future Amortization Expense of Identified Intangibles (Detail) (In Process Research and Development Excluded, USD $) In Thousands, unless otherwise specified	9 Months Ended
	Oct. 29, 2011
In Process Research and Development Excluded
Fiscal year
Remainder of fiscal 2012	$ 11,140
2013	41,436
2014	26,753
2015	5,351
2016	2,587
Thereafter	4,624
Finite-Lived Intangible Assets, Future Amortization Expense, Total	$ 91,891

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Derivative Financial Instruments

9 Months Ended

Oct. 29, 2011

Derivative Financial Instruments

Note 5. Derivative Financial Instruments

The Company manages some of its foreign currency exchange rate risk through the purchase of foreign currency exchange contracts that hedge against the short term impact of currency fluctuations. The Company’s policy is to enter into foreign currency forward contracts with maturities generally less than 12 months that mitigate the impact of rate fluctuations on certain local currency denominated operating expenses. All derivatives are recorded at fair value in either prepaid expenses and other current assets or accrued liabilities. The Company reports cash flows from derivative instruments in cash flows provided by operating activities. The Company uses quoted prices to value its derivative instruments.

As of October 29, 2011 and January 29, 2011, the notional amounts of outstanding forward contracts were as follows (in thousands):

	October 29, 2011				January 29, 2011
	Buy Contracts		Sell Contracts		Buy Contracts		Sell Contracts
Israeli shekel	$	67,361	$	—	$	56,360	$	—
Euro		—		—		—		3,698
	$	67,361	$	—	$	56,360	$	3,698

Cash Flow Hedges. The Company designates and documents its foreign currency forward exchange contracts as cash flow hedges for certain operating expenses denominated in Israeli shekels. The Company evaluates and calculates the effectiveness of each hedge at least quarterly. The effective change is recorded in accumulated other comprehensive income and is subsequently reclassified to operating expense when the hedged expense is recognized. Ineffectiveness is recorded in interest and other income (expense), net.

Other Foreign Currency Forward Contracts. The Company enters into foreign currency forward exchange contracts to hedge certain assets and liabilities denominated in various foreign currencies that it does not designate as hedges for accounting purposes. The maturities of these contracts are generally less than 12 months. Gains or losses arising from the remeasurement of these contracts to fair value each period are recorded in interest and other income (loss), net.

The fair value of foreign exchange contract derivatives was not significant as of any period presented.

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Summary of the Change in Fair Values for Level 3 Items (Detail) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Oct. 29, 2011	Oct. 30, 2010
Changes in fair value (pre-tax):
Beginning Balance	$ 26,226	$ 39,281
Purchases
Sales, redemption and settlement	(3,300)	(8,516)
Realized loss on sale		(134)
Unrealized gain included in accumulated other comprehensive income (loss)	292	234
Ending Balance	$ 23,218	$ 30,865

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Contractual Maturities of Available-For-Sale Securities (Detail) (USD $) In Thousands, unless otherwise specified	Oct. 29, 2011	Jan. 29, 2011
Amortized Cost
Due in one year or less	$ 601,692	$ 560,190
Due between one and five years	970,077	519,262
Due over five years	24,550	27,850
Marketable Securities, Debt Maturities, Amortized Cost, Total	1,596,319	1,107,302
Estimated Fair Value
Due in one year or less	602,491	560,999
Due between one and five years	971,263	521,957
Due over five years	23,218	26,226
Estimated Fair Value	$ 1,596,972	$ 1,109,182

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Investments - Additional Information (Detail) (USD $)	Oct. 29, 2011	Jan. 29, 2011
Gain (Loss) on Investments [Line Items]
Decrease in fair value of auction rate securities	$ 3,288,000	$ 1,889,000
Cash, cash equivalents and short-term investments other than auction rate securities	2,400,000,000
Long-term investments
Gain (Loss) on Investments [Line Items]
Decrease in fair value of auction rate securities	1,332,000	1,624,000
Long-term investments | Auction rate securities
Gain (Loss) on Investments [Line Items]
Par value of auction rate securities	24,600,000
Decrease in fair value of auction rate securities	$ 1,300,000

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Stock-Based Compensation - Additional Information (Detail) (USD $) In Millions, unless otherwise specified			9 Months Ended
	Oct. 29, 2011	Jan. 29, 2011	Oct. 29, 2011 Market Based Option Award
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation capitalized in inventory	$ 1.5	$ 1.5
Stock option, vesting term			P2.66Y

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Business Combination - Additional Information (Detail) (Ethernet physical-layer transceivers ("PHY"), USD $) In Millions, unless otherwise specified	Apr. 30, 2011
Ethernet physical-layer transceivers ("PHY")
Business Acquisition [Line Items]
Business acquisition purchase price	$ 16.3
Business acquisition purchase price allocation, tangible assets	1.1
Business acquisition purchase price allocation, intangible assets	13.6
Business acquisition purchase price allocation, goodwill	$ 1.6

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Summary of the Investments' Gross Unrealized Losses and Fair Value (Detail) (USD $) In Thousands, unless otherwise specified	Oct. 29, 2011	Jan. 29, 2011
Investments, Unrealized Loss Position [Line Items]
Less than 12 months Fair Value	$ 536,590	$ 205,043
Less than 12 months Unrealized Losses	(1,956)	(265)
12 months or more Fair Value	23,218	26,226
12 months or more Unrealized Losses	(1,332)	(1,624)
Total Fair Value	559,808	231,269
Total Unrealized Losses	(3,288)	(1,889)
Corporate debt securities
Investments, Unrealized Loss Position [Line Items]
Less than 12 months Fair Value	250,560	113,081
Less than 12 months Unrealized Losses	(1,676)	(213)
Total Fair Value	250,560	113,081
Total Unrealized Losses	(1,676)	(213)
U.S. government and agencies
Investments, Unrealized Loss Position [Line Items]
Less than 12 months Fair Value	286,030	91,962
Less than 12 months Unrealized Losses	(280)	(52)
Total Fair Value	286,030	91,962
Total Unrealized Losses	(280)	(52)
Auction rate securities
Investments, Unrealized Loss Position [Line Items]
12 months or more Fair Value	23,218	26,226
12 months or more Unrealized Losses	(1,332)	(1,624)
Total Fair Value	23,218	26,226
Total Unrealized Losses	$ (1,332)	$ (1,624)

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Inventories (Detail) (USD $) In Thousands, unless otherwise specified	Oct. 29, 2011	Jan. 29, 2011
Schedule of Inventory [Line Items]
Work-in-process	$ 173,899	$ 156,108
Finished goods	136,069	89,340
Inventories	$ 309,968	$ 245,448

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Supplemental Financial Information (in thousands)

9 Months Ended

Oct. 29, 2011

Supplemental Financial Information (in thousands)

Note 4. Supplemental Financial Information (in thousands)

Inventories

	October 29, 2011		January 29, 2011
Work-in-process	$	173,899	$	156,108
Finished goods		136,069		89,340
Inventories	$	309,968	$	245,448

Property and equipment, net

	October 29, 2011			January 29, 2011
Machinery and equipment	$	471,973		$	435,900
Computer software		80,358			74,966
Furniture and fixtures		24,044			23,498
Leasehold improvements		35,618			34,142
Buildings		144,596			144,596
Building improvements		42,029			41,200
Land		69,246			69,246
Construction in progress		8,476			8,469
		876,340			832,017
Less: Accumulated depreciation and amortization		(502,712	)		(473,577	)
Property and equipment, net	$	373,628		$	358,440

Other non-current assets

	October 29, 2011		January 29, 2011
Technology and other licenses	$	54,355	$	51,642
Deferred tax assets		25,703		27,671
Investments in privately held companies		6,073		3,950
Deferred compensation		4,956		6,169
Prepayments for foundry capacity		4,725		5,289
Severance fund		2,608		4,819
Other		12,500		11,840
Other non-current assets	$	110,920	$	111,380

Accrued liabilities

	October 29, 2011		January 29, 2011
Accrued rebates	$	25,956	$	32,405
Accrued royalties		14,109		14,018
Accrued legal expense		12,646		8,551
Technology license obligation		6,410		4,850
Customer advances for NRE services		2,377		3,515
Accrued fees for tax, audit and other professional services		1,757		2,125
Income tax payable		1,719		—
Accrued sales/goods and services tax		1,349		3,679
Other		16,348		16,851
Accrued liabilities	$	82,671	$	85,994

Other long-term liabilities

	October 29, 2011		January 29, 2011
Technology license obligation	$	12,134	$	19,218
Long-term accrued employee compensation		9,752		9,258
Facilities consolidation		2,233		3,271
Accrued severance		1,990		3,226
Other		8,104		4,367
Other long-term liabilities	$	34,213	$	39,340

Net income per share

The Company reports both basic net income per share, which is based upon the weighted average number of common shares outstanding and diluted net income per share, which is based on the weighted average number of common shares outstanding and dilutive potential common shares. The computations of basic and diluted net income per share are presented in the following table (in thousands, except per share amounts):

	Three Months Ended				Nine Months Ended
	October 29, 2011		October 30, 2010		October 29, 2011		October 30, 2010
Numerator:
Net income	$	195,121	$	255,732	$	534,374	$	681,276
Denominator:
Weighted average common shares outstanding		600,504		649,782		615,987		646,246
Effect of dilutive securities:
Common share options and other		12,995		25,007		15,270		29,777
Weighted average shares — diluted		613,499		674,789		631,257		676,023
Net income per share:
Basic	$	0.32	$	0.39	$	0.87	$	1.05
Diluted	$	0.32	$	0.38	$	0.85	$	1.01

Options to purchase 23.8 million common shares at a weighted average exercise price of $18.26 have been excluded from the computation of diluted net income per share for the three months ended October 29, 2011 because including them would have been anti-dilutive. Options to purchase 17.1 million common shares at a weighted average exercise price of $19.84 have been excluded from the computation of diluted net income per share for the three months ended October 30, 2010 because including them would have been anti-dilutive.

Options to purchase 20.4 million common shares at a weighted average exercise price of $18.92 have been excluded from the computation of diluted net income per share for the nine months ended October 29, 2011 because including them would have been anti-dilutive. Options to purchase 12.5 million common shares at a weighted average exercise price of $21.29 have been excluded from the computation of diluted net income per share for the nine months ended October 30, 2010 because including them would have been anti-dilutive.

In addition, as of October 29, 2011, options to purchase 3.1 million shares that contain a market condition for vesting have been excluded from the computation of diluted net income per share for the three and nine months ended October 29, 2011, as the market value of the Company’s shares as of October 29, 2011 was lower than the required market condition. Refer to “Note 12 – Stock-Based Compensation” for additional details.

Comprehensive income

The changes in the components of other comprehensive income were as follows (in thousands):

	Three Months Ended					Nine Months Ended
	October 29, 2011			October 30, 2010		October 29, 2011			October 30, 2010
Net income	$	195,121		$	255,732	$	534,374		$	681,276
Other comprehensive income
Net unrealized gain (loss) on marketable securities		(3,515	)		1,939		(1,519	)		3,795
Net unrealized gain on auction rate securities		248			181		292			234
Net unrealized gain (loss) on cash flow hedges		(2,895	)		951		(160	)		460
Change in other		115			—		—			(2	)
Total comprehensive income	$	189,074		$	258,803	$	532,987		$	685,763

The components of accumulated other comprehensive income (loss) were as follows (in thousands):

	October 29, 2011			January 29, 2011
Unrealized gain on marketable securities	$	1,985		$	3,504
Unrealized loss on auction rate securities		(1,332	)		(1,624	)
Unrealized loss on cash flow hedges		(953	)		(793	)
Other		5			5
Accumulated other comprehensive income (loss)	$	(295	)	$	1,092

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Property and Equipment, Net (Detail) (USD $) In Thousands, unless otherwise specified	Oct. 29, 2011	Jan. 29, 2011
Property, Plant and Equipment [Line Items]
Machinery and equipment	$ 471,973	$ 435,900
Computer software	80,358	74,966
Furniture and fixtures	24,044	23,498
Leasehold improvements	35,618	34,142
Buildings	144,596	144,596
Building improvements	42,029	41,200
Land	69,246	69,246
Construction in progress	8,476	8,469
Property, Plant and Equipment, Gross, Total	876,340	832,017
Less: Accumulated depreciation and amortization	(502,712)	(473,577)
Property and equipment, net	$ 373,628	$ 358,440

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Notional Amounts of Outstanding Forward Contracts (Detail) (Foreign Exchange Contract, USD $) In Thousands, unless otherwise specified	Oct. 29, 2011	Jan. 29, 2011
Derivative [Line Items]
Buy Contracts	$ 67,361	$ 56,360
Sell Contracts		3,698
Israeli shekel
Derivative [Line Items]
Buy Contracts	67,361	56,360
Euro
Derivative [Line Items]
Sell Contracts		$ 3,698

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Stock Option Plan Activity (Detail) (USD $)	3 Months Ended	9 Months Ended
	Apr. 30, 2011	Oct. 29, 2011
Options Outstanding
Beginning Balance	56,325,000	56,325,000
Granted		6,383,000
Canceled/Forfeited		(1,350,000)
Exercised		(3,166,000)
Ending Balance		58,192,000
Vested or expected to vest at October 29, 2011		56,723,000
Exercisable at October 29, 2011		42,054,000
Weighted Average Exercise Price
Beginning Balance	11.96	$ 11.96
Granted		$ 15.42
Canceled/Forfeited		$ 14.69
Exercised		$ 7.85
Ending Balance		$ 12.50
Vested or expected to vest at October 29, 2011		$ 12.46
Exercisable at October 29, 2011		$ 12.55
Time Based Option Award
Options Outstanding
Beginning Balance	56,325,000	56,325,000
Granted		3,234,000
Canceled/Forfeited		(1,325,000)
Exercised		(3,166,000)
Ending Balance		55,068,000
Vested or expected to vest at October 29, 2011		54,077,000
Exercisable at October 29, 2011		42,054,000
Weighted Average Exercise Price
Beginning Balance	11.96	$ 11.96
Granted		$ 15.42
Canceled/Forfeited		$ 14.68
Exercised		$ 7.85
Ending Balance		$ 12.33
Vested or expected to vest at October 29, 2011		$ 12.31
Exercisable at October 29, 2011		$ 12.55
Market Based Option Award
Options Outstanding
Granted	3,100	3,149,000
Canceled/Forfeited		(25,000)
Ending Balance		3,124,000
Vested or expected to vest at October 29, 2011		2,646,000
Weighted Average Exercise Price
Granted		$ 15.43
Canceled/Forfeited		$ 15.43
Ending Balance		$ 15.43
Vested or expected to vest at October 29, 2011		$ 15.43

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CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Oct. 29, 2011	Jan. 29, 2011
Current assets:
Cash and cash equivalents	$ 850,944	$ 1,847,074
Short-term investments	1,573,754	1,082,956
Accounts receivable, net	451,108	459,406
Inventories	309,968	245,448
Prepaid expenses and other current assets	52,124	66,945
Deferred income taxes	9,617	10,818
Total current assets	3,247,515	3,712,647
Property and equipment, net	373,628	358,440
Long-term investments	23,218	26,226
Goodwill	2,009,662	2,004,833
Acquired intangible assets, net	102,432	124,631
Other non-current assets	110,920	111,380
Total assets	5,867,375	6,338,157
Current liabilities:
Accounts payable	355,404	332,007
Accrued liabilities	82,671	85,994
Accrued employee compensation	154,448	146,524
Deferred income	69,244	76,161
Total current liabilities	661,767	640,686
Non-current income taxes payable	132,096	136,262
Other long-term liabilities	34,213	39,340
Total liabilities	828,076	816,288
Commitments and contingencies (Note 10)
Shareholders' equity:
Common stock	1,179	1,317
Additional paid-in capital	3,790,169	4,805,588
Accumulated other comprehensive income (loss)	(295)	1,092
Retained earnings	1,248,246	713,872
Total shareholders' equity	5,039,299	5,521,869
Total liabilities and shareholders' equity	$ 5,867,375	$ 6,338,157

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Carrying Value of Goodwill (Detail) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Oct. 29, 2011
Goodwill [Line Items]
Beginning balance	$ 2,004,833
Additions due to business combinations	4,829
Ending balance	$ 2,009,662

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Recent Accounting Pronouncements and Accounting Changes

9 Months Ended

Oct. 29, 2011

Recent Accounting Pronouncements and Accounting Changes

Note 2. Recent Accounting Pronouncements and Accounting Changes

In May 2011, the Financial Accounting Standards Board (“FASB”) issued additional guidance on fair value measurements and related disclosures. The new guidance clarifies the application of existing guidance on fair value measurement for non-financial assets and requires the disclosure of quantitative information about the unobservable inputs used in a fair value measurement. This guidance is effective on a prospective basis for interim and annual periods beginning after December 15, 2011. The adoption of this guidance during the first quarter of fiscal 2013 will not have any impact on the Company’s financial statements.

In June 2011, the FASB issued an amendment to the guidance regarding the presentation of comprehensive income. The amended guidance gives an entity the option to present the total of comprehensive income, the components of net income, and the components of other comprehensive income either in a single continuous statement of comprehensive income or in two separate but consecutive statements. The amended guidance eliminates the option to present the components of other comprehensive income as part of the statement of changes in stockholders’ equity. The amended guidance also requires presentation of adjustments for items that are reclassified from other comprehensive income to net income in the statement where the components of net income and the components of other comprehensive income are presented. This guidance is effective on a retrospective basis for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2011.

In September 2011, the FASB issued an amendment to the guidance regarding the testing of goodwill for impairment. The amended guidance will allow an entity to first assess qualitative factors to determine whether it is necessary to perform the two-step quantitative goodwill impairment test. An entity no longer will be required to calculate the fair value of a reporting unit unless the entity determines, based on a qualitative assessment, that it is more likely than not that its fair value is less than its carrying amount. The amended guidance is effective for annual and interim goodwill impairment tests performed for fiscal years beginning after December 15, 2011, with early adoption permitted. The Company does not expect to early adopt the amended guidance.

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Income Taxes - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Oct. 29, 2011	Oct. 30, 2010	Oct. 29, 2011	Oct. 30, 2010
Income Taxes [Line Items]
Effective tax rate, income tax provision (benefit)	2.00%	0.60%	1.70%	0.40%
Increase in unrecognized tax benefits, consisting mostly of tax provision-to-tax return adjustment	$ 0.8		$ 0.8
Current year tax liability	6.0	5.4	14.3	12.5
Net reduction in unrecognized tax benefits	(2.8)
Reduction of unrecognized tax benefits due to the expiration of the statute of limitations	4.6	2.0	11.5	10.7
Income tax benefit due to release of valuation allowance from completion of audit		3.4		3.4
Increase in unrecognized tax benefits	1.8	1.9	5.5	5.4
Withholding tax on the disposition of an investment				1
Provision for income taxes, benefit due to a ruling denial related to the supply chain structure		(1.8)		(1.8)
Provision for income taxes, increase in U.S. subsidiary due the defeat of a state proposition		1.5		1.5
Foreign Country
Income Taxes [Line Items]
Settlement of a non-U.S. audit			0.2
Decrease in provision for income taxes due to a deferred tax asset for employee stock options on a non-U.S. subsidiary				$ 1.5

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Other Long-Term Liabilities (Detail) (USD $) In Thousands, unless otherwise specified	Oct. 29, 2011	Jan. 29, 2011
Other Liabilities [Line Items]
Technology license obligation	$ 12,134	$ 19,218
Long-term accrued employee compensation	9,752	9,258
Facilities consolidation	2,233	3,271
Accrued severance	1,990	3,226
Other	8,104	4,367
Other long-term liabilities	$ 34,213	$ 39,340

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Fair Value Measurements (Tables)

9 Months Ended

Oct. 29, 2011

Fair Value, Assets Measured on Recurring Basis

The tables below set forth, by level, the Company’s financial assets that were accounted for at fair value as of October 29, 2011 and January 29, 2011. The tables do not include assets and liabilities that are measured at historical cost or any basis other than fair value (in thousands):

	Level 1		Level 2		Level 3		Portion of Carrying Value Measured at Fair Value at October 29, 2011
Items measured at fair value on a recurring basis:
Assets
Cash equivalents:
Money market funds	$	19,242	$	—	$	—	$	19,242
U.S. government and agency securities		13,000		—		—		13,000
Corporate debt securities				11,499		—		11,499
Time deposit		132,441		—		—		132,441
Short-term investments:
U.S. government and agency securities		759,858		—		—		759,858
Corporate debt securities		—		813,896		—		813,896
Long-term investments:
Auction rate securities		—		—		23,218		23,218
Other non-current assets:
Severance pay fund		868		1,740		—		2,608
Total assets	$	925,409	$	827,135	$	23,218	$	1,775,762
Liabilities
Accrued liabilities:
Forward contracts	$	—	$	797	$	—	$	797
Total liabilities	$	—	$	797	$	—	$	797

	Level 1		Level 2		Level 3		Portion of Carrying Value Measured at Fair Value at January 29, 2011
Items measured at fair value on a recurring basis:
Assets
Cash equivalents:
Money market funds	$	1,230,616	$	—	$	—	$	1,230,616
U.S. government and agency securities		106,487		—		—		106,487
Corporate debt securities		—		9,797		—		9,797
Time deposit		159,938		—		—		159,938
Short-term investments:
U.S. government and agency securities		431,683		—		—		431,683
Corporate debt securities		—		651,273		—		651,273
Long-term investments:
Auction rate securities		—		—		26,226		26,226
Prepaid expense and other current assets:
Forward contracts		—		166		—		166
Other non-current assets:
Severance pay fund		2,425		2,394		—		4,819
Total assets	$	1,931,149	$	663,630	$	26,226	$	2,621,005
Liabilities
Accrued liabilities:
Forward contracts	$	—	$	804	$	—	$	804
Total liabilities	$	—	$	804	$	—	$	804

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation

The following tables summarize the change in fair value for Level 3 items during the nine months ended October 29, 2011 and October 30, 2010 (in thousands):

	Level 3
Changes in fair value during the nine months ended October 29, 2011 (pre-tax):
Beginning balance at January 30, 2011	$	26,226
Purchases		—
Sales, redemption and settlement		(3,300	)
Unrealized gain included in accumulated other comprehensive income (loss)		292
Ending balance at October 29, 2011	$	23,218

	Level 3
Changes in fair value during the nine months ended October 30, 2010 (pre-tax):
Beginning balance at January 31, 2010	$	39,281
Purchases		—
Sales, redemption and settlement		(8,516	)
Realized loss on sale		(134	)
Unrealized gain included in accumulated other comprehensive income (loss)		234
Ending balance at October 30, 2010	$	30,865

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Computations of Basic and Diluted Net Income Per Share (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Oct. 29, 2011	Oct. 30, 2010	Oct. 29, 2011	Oct. 30, 2010
Numerator:
Net income	$ 195,121	$ 255,732	$ 534,374	$ 681,276
Denominator:
Weighted average common shares outstanding	600,504	649,782	615,987	646,246
Effect of dilutive securities:
Common share options and other	12,995	25,007	15,270	29,777
Weighted average shares - diluted	613,499	674,789	631,257	676,023
Net income per share:
Basic	$ 0.32	$ 0.39	$ 0.87	$ 1.05
Diluted	$ 0.32	$ 0.38	$ 0.85	$ 1.01

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Restructuring (Tables)

9 Months Ended

Oct. 29, 2011

Schedule of Restructuring and Related Costs

The following table sets forth an analysis of the components of the restructuring charges and the payments made (in thousands):

	Three Months Ended						Nine Months Ended
	October 29, 2011			October 30, 2010			October 29, 2011			October 30, 2010
Restructuring liabilities, beginning of period	$	3,209		$	4,842		$	3,306		$	5,397
Facilities and related charges		105			395			1,291			2,741
Equipment and other related charges		—			94			—			94
Non-cash adjustment		(96	)		185			(491	)		(1,272	)
Net cash payments		(301	)		(1,650	)		(1,189	)		(2,993	)
Adjustments to previous assumptions		—			(230	)		—			(331	)
Restructuring liabilities, end of period	$	2,917		$	3,636		$	2,917		$	3,636

Schedule of Restructuring Reserve by Type of Cost

The following table presents details of restructuring charges by functional line item (in thousands):

	Three Months Ended				Nine Months Ended
	October 29, 2011		October 30, 2010		October 29, 2011		October 30, 2010
Research and development	$	1	$	187	$	308	$	1,686
Selling and marketing		—		—		—		—
General and administrative		104		72		983		818
	$	105	$	259	$	1,291	$	2,504

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Investments

9 Months Ended

Oct. 29, 2011

Investments

Note 3. Investments

The following tables summarize the Company’s investments (in thousands):

	As of October 29, 2011
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
Short-term investments:
Available-for-sale:
Corporate debt securities	$	812,965	$	2,607	$	(1,676	)	$	813,896
U.S. government and agency securities		758,804		1,334		(280	)		759,858
Total short-term investments	$	1,571,769	$	3,941	$	(1,956	)	$	1,573,754
Long-term investments:
Available-for-sale:
Auction rate securities	$	24,550	$	—	$	(1,332	)	$	23,218
Total long-term investments	$	24,550	$	—	$	(1,332	)	$	23,218
Total investments	$	1,596,319	$	3,941	$	(3,288	)	$	1,596,972

	As of January 29, 2011
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
Short-term investments:
Available-for-sale:
Corporate debt securities	$	648,278	$	3,208	$	(213	)	$	651,273
U.S. government and agency securities		431,174		561		(52	)		431,683
Total short-term investments	$	1,079,452	$	3,769	$	(265	)	$	1,082,956
Long-term investments:
Available-for-sale:
Auction rate securities	$	27,850	$	—	$	(1,624	)	$	26,226
Total long-term investments	$	27,850	$	—	$	(1,624	)	$	26,226
Total investments	$	1,107,302	$	3,769	$	(1,889	)	$	1,109,182

As of October 29, 2011, the Company’s investment portfolio included $24.6 million in par value of auction rate securities. Beginning in February 2008, liquidity issues in the global credit markets resulted in a failure of auction rate securities, as the amount of securities submitted for sale in those auctions exceeded the amount of bids. To estimate the fair value of the auction rate securities since that time, the Company used a discounted cash flow model based on estimated timing and amount of future interest and principal payments, credit quality of the underlying securities and liquidity considerations, the collateralization of underlying security investments, the credit worthiness of the issuer of the securities, the probability of full repayment and other considerations. As of October 29, 2011, the fair value of the auction rate securities was $1.3 million less than the par value and was recorded in long-term investments.

Based on the Company’s assessment of its cash flow projections, a balance of approximately $2.4 billion in cash, cash equivalents and short-term investments and the fact that the Company continues to generate positive cash flow from operations on a quarterly basis, the Company does not anticipate having to sell these securities below par value in order to operate its business. The Company does not have the intent to sell these auction rate securities until recovery. Thus, the Company considers the impairment to be temporary and recorded the unrealized loss to accumulated other comprehensive income (loss), a component of shareholders’ equity.

The contractual maturities of available-for-sale securities at October 29, 2011 and January 29, 2011 are presented in the following table (in thousands):

	October 29, 2011				January 29, 2011
	Amortized Cost		Estimated Fair Value		Amortized Cost		Estimated Fair Value
Due in one year or less	$	601,692	$	602,491	$	560,190	$	560,999
Due between one and five years		970,077		971,263		519,262		521,957
Due over five years		24,550		23,218		27,850		26,226
	$	1,596,319	$	1,596,972	$	1,107,302	$	1,109,182

The following table shows the investments’ gross unrealized losses and fair value, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position (in thousands):

	October 29, 2011
	Less than 12 months					12 months or more					Total
	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
Corporate debt securities	$	250,560	$	(1,676	)	$	—	$	—		$	250,560	$	(1,676	)
U.S. government and agency securities		286,030		(280	)		—		—			286,030		(280	)
Auction rate securities		—		—			23,218		(1,332	)		23,218		(1,332	)
Total securities	$	536,590	$	(1,956	)	$	23,218	$	(1,332	)	$	559,808	$	(3,288	)

	January 29, 2011
	Less than 12 months					12 months or more					Total
	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
Corporate debt securities	$	113,081	$	(213	)	$	—	$	—		$	113,081	$	(213	)
U.S. government and agency securities		91,962		(52	)		—		—			91,962		(52	)
Auction rate securities		—		—			26,226		(1,624	)		26,226		(1,624	)
Total securities	$	205,043	$	(265	)	$	26,226	$	(1,624	)	$	231,269	$	(1,889	)

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CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Oct. 29, 2011	Oct. 30, 2010	Oct. 29, 2011	Oct. 30, 2010
Net revenue	$ 950,417	$ 959,327	$ 2,650,339	$ 2,711,380
Operating costs and expenses:
Cost of goods sold	412,100	390,808	1,124,692	1,101,475
Research and development	266,255	218,420	758,396	665,742
Selling and marketing	40,500	39,751	119,042	115,037
General and administrative	29,021	29,576	77,436	78,124
Amortization of acquired intangible assets	11,155	21,770	36,634	65,533
Total operating costs and expenses	759,031	700,325	2,116,200	2,025,911
Operating income	191,386	259,002	534,139	685,469
Interest and other income (expense), net	7,729	(1,665)	9,575	(1,205)
Income before income taxes	199,115	257,337	543,714	684,264
Provision for income taxes	3,994	1,605	9,340	2,988
Net income	$ 195,121	$ 255,732	$ 534,374	$ 681,276
Net income per share:
Basic	$ 0.32	$ 0.39	$ 0.87	$ 1.05
Diluted	$ 0.32	$ 0.38	$ 0.85	$ 1.01
Weighted average shares:
Basic	600,504	649,782	615,987	646,246
Diluted	613,499	674,789	631,257	676,023

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Income Tax

9 Months Ended

Oct. 29, 2011

Income Tax

Note 13. Income Tax

During the three months ended October 29, 2011 and October 30, 2010, the Company’s effective tax rate was an income tax provision of 2.0% and 0.6%, respectively. During the nine months ended October 29, 2011 and October 30, 2010, the Company’s effective tax rate was an income tax provision of 1.7% and 0.4%, respectively. The income tax provision for these periods was affected by non-tax-deductible expenses such as stock-based compensation expense and the amortization of acquired intangibles.

During the three months ended October 29, 2011, the provision for income taxes consisted of the current income tax liability of $6.0 million, and $0.8 million consisting mostly of a tax provision-to-tax return adjustment. These amounts were partially offset by a net reduction of $2.8 million in unrecognized tax benefits. The reduction in unrecognized tax benefits was driven by $4.6 million due to expiration of the statute of limitations in a non-U.S. jurisdiction, offset by new unrecognized tax benefits of $1.8 million due to current year estimates. During the three months ended October 30, 2010, the provision for income taxes was impacted by the current income tax liability of $5.4 million, a reduction of unrecognized tax benefits for $2.0 million due to the expiration of the statute of limitations in a non-U.S. jurisdiction, an increase in unrecognized tax benefits of $1.9 million due to current year estimates, $3.4 million income tax benefit due to release of valuation allowance from the completion of an audit, $1.8 million benefit for a ruling denial related to our supply chain structure and a $1.5 million increase in a U.S. subsidiary due the defeat of a state proposition.

During the nine months ended October 29, 2011, the provision for income taxes consisted of the current income tax liability of $14.3 million, a reduction of unrecognized tax benefits of $11.5 million due to the expiration of the statute of limitations in multiple jurisdictions, an increase in unrecognized tax benefits of $5.5 million, $0.8 million consisting mostly of a tax provision-to-tax return adjustment and a settlement of a non-U.S. audit for $0.2 million. During the nine months ended October 30, 2010, the provision for income taxes was impacted by the current income tax liability of $12.5 million, a reduction of unrecognized tax benefits of $10.7 million due to the expiration of the statute of limitations in multiple jurisdictions, an increase in unrecognized tax benefits of $5.4 million dollars, a decrease in deferred tax asset of $1.5 million related to employee stock options for a non-U.S. subsidiary, $1.0 million withholding tax on the disposition of an investment, $3.4 million income tax benefit due to release of valuation allowance from the completion of an audit, $1.8 million benefit for a ruling denial related to our supply chain structure and a $1.5 million increase in a U.S. subsidiary due to the defeat of a state proposition.

During the next 12 months, it is reasonably possible that the amount of unrecognized tax benefits could decrease due to potential settlement with tax authorities and the expiration of applicable statutes of limitations. However, the amount cannot be reasonably estimated as the company will have negotiations with various tax authorities throughout the year.

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Document and Entity Information	9 Months Ended
	Oct. 29, 2011	Nov. 25, 2011
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Oct. 29, 2011
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	Q3
Trading Symbol	MRVL
Entity Registrant Name	MARVELL TECHNOLOGY GROUP LTD
Entity Central Index Key	0001058057
Current Fiscal Year End Date	--01-28
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		583,500,000

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The Company and Basis of Presentation (Policies)

9 Months Ended

Oct. 29, 2011

The Company

The Company

Marvell Technology Group Ltd., a Bermuda company (the “Company”), is a leading global semiconductor provider of high-performance application specific standard products. The Company’s core strength of expertise is the development of complex System-on-a-Chip devices leveraging its extensive technology portfolio of intellectual property in the areas of analog, mixed-signal, digital signal processing and embedded ARM-based microprocessor integrated circuits. The Company develops platforms that it defines as integrated hardware and software that incorporate digital computing technologies designed and configured to provide an optimal computing solution compared to individual components. The Company’s broad product portfolio includes devices for data storage, enterprise-class Ethernet data switching, Ethernet physical-layer transceivers, handheld cellular, Ethernet-based wireless networking, personal area networking, Ethernet-based PC connectivity, control plane communications controllers, video-image processing and power management solutions.

Basis of presentation

Basis of presentation

The Company’s fiscal year is the 52- or 53-week period ending on the Saturday closest to January 31. In a 52-week year, each fiscal quarter consists of 13 weeks. The additional week in a 53-week year is added to the fourth quarter, making such quarter consist of 14 weeks. Fiscal 2012 and fiscal 2011 are comprised of 52-week periods.

The unaudited interim condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and notes required by GAAP for annual financial statements. In the opinion of management, all adjustments consisting of normal and recurring entries considered necessary for a fair statement of the results for the interim periods have been included in the Company’s balance sheet as of October 29, 2011, the results of its operations for the three and nine months ended October 29, 2011 and October 30, 2010, and its cash flows for the nine months ended October 29, 2011 and October 30, 2010. The January 29, 2011 condensed consolidated balance sheet data was derived from audited consolidated financial statements included in the Company’s Annual Report on Form 10-K for the fiscal year ended January 29, 2011 but does not include all disclosures required for annual periods. Certain reclassifications have been made to conform to the current period’s presentation.

These condensed consolidated financial statements and related notes are unaudited and should be read in conjunction with the Company’s audited financial statements and related notes included in the Company’s Annual Report on Form 10-K for the fiscal year ended January 29, 2011 as filed on March 28, 2011 with the Securities and Exchange Commission. The results of operations for the three and nine months ended October 29, 2011 are not necessarily indicative of the results that may be expected for any other interim period or for the full fiscal year.

Use of estimates

Use of estimates

The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates, judgments and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses, and related disclosure of contingent assets and liabilities. On an on-going basis, the Company evaluates its estimates, including those related to performance-based compensation, revenue recognition, including provisions for sales returns and allowances, inventory excess and obsolescence, investment fair values, goodwill and other intangible assets, income taxes, litigation and other contingencies. In addition, the Company uses assumptions when employing the Monte Carlo simulation and Black-Scholes valuation models to calculate the fair value of stock-based awards granted. The Company bases its estimates of the carrying value of certain assets and liabilities on historical experience and on various other assumptions that are believed to be reasonable under the circumstances when these carrying values are not readily available from other sources. Actual results could differ from these estimates, and such differences could affect the results of operations reported in future periods.

Principles of consolidation

Principles of consolidation

The unaudited condensed consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All intercompany accounts and transactions have been eliminated. The functional currency of the Company and its subsidiaries is the United States dollar.

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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Oct. 29, 2011	Oct. 30, 2010
Cash flows from operating activities:
Net income	$ 534,374	$ 681,276
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	66,653	68,991
Stock-based compensation	88,446	87,126
Amortization of acquired intangible assets	36,634	65,533
Facilities impairment		1,140
Other (income) expense, net	11,411	9,568
Fair market value adjustment to aquired inventory sold		(2,391)
Excess tax benefits from stock-based compensation	(99)	(669)
Deferred income taxes	3,169	(6,486)
Changes in assets and liabilities:
Accounts receivable	8,298	(111,179)
Inventories	(63,967)	15,856
Prepaid expenses and other assets	31,060	(3,718)
Accounts payable	4,193	63,935
Accrued liabilities and other	(18,030)	17,948
Accrued employee compensation	6,924	26,965
Deferred income	(6,917)	28,820
Net cash provided by operating activities	702,149	942,715
Cash flows from investing activities:
Purchases of marketable securities	(1,582,892)	(1,021,950)
Purchases of strategic investments	(3,503)	(1,750)
Sales and maturities of investments	1,083,214	678,738
Cash paid for acquisition, net	(18,760)	(20,679)
Purchases of technology licenses	(9,593)	(12,649)
Purchases of property and equipment	(62,330)	(63,267)
Net cash used in investing activities	(593,864)	(441,557)
Cash flows from financing activities:
Repurchase of common stock	(1,154,396)	(60,594)
Proceeds from employee stock plans	50,393	97,673
Principal payments on capital lease obligations	(511)	(1,440)
Excess tax benefits from stock-based compensation	99	669
Net cash provided by (used in) financing activities	(1,104,415)	36,308
Net increase (decrease) in cash and cash equivalents	(996,130)	537,466
Cash and cash equivalents at beginning of period	1,847,074	1,105,428
Cash and cash equivalents at end of period	$ 850,944	$ 1,642,894

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Goodwill and Acquired Intangible Assets, Net (in thousands):

9 Months Ended

Oct. 29, 2011

Goodwill and Acquired Intangible Assets, Net (in thousands):

Note 8. Goodwill and Acquired Intangible Assets, Net (in thousands):

Goodwill

The following table summarizes the activity related to the carrying value of goodwill:

Balance at January 29, 2011	$	2,004,833
Additions due to business combinations		4,829
Balance at October 29, 2011	$	2,009,662

Acquired Intangible Assets, Net

		October 29, 2011							January 29, 2011
	Range of Useful Lives	Gross Carrying Amounts		Accumulated Amortization and Write-Offs			Net Carrying Amount		Gross Carrying Amounts		Accumulated Amortization and Write-Offs			Net Carrying Amount
Purchased technology	1 - 7 years	$	739,605	$	(708,691	)	$	30,914	$	726,040	$	(698,877	)	$	27,163
Core technology	1 - 8 years		212,650		(172,222	)		40,428		212,650		(155,359	)		57,291
Trade name	1 - 5 years		350		(328	)		22		350		(299	)		51
Customer contracts	4 - 7 years		187,200		(166,673	)		20,527		187,200		(156,774	)		30,426
In-process research and development	*		10,541		—			10,541		9,700		—			9,700
Total intangible assets, net		$	1,150,346	$	(1,047,914	)	$	102,432	$	1,135,940	$	(1,011,309	)	$	124,631

* Upon completion of the project, the related in-process research and development (“IPR&D”) assets will be amortized over its estimated useful life. If any of the projects are abandoned or the forecast of the project indicates that the fair value is less than the carrying amount, the Company will be required to impair the related IPR&D asset.

Based on the identified intangible assets recorded at October 29, 2011, the future amortization expense excluding IPR&D for the next five fiscal years is as follows (in thousands):

Fiscal year
Remainder of fiscal 2012	$	11,140
2013		41,436
2014		26,753
2015		5,351
2016		2,587
Thereafter		4,624
	$	91,891

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Business Combination

9 Months Ended

Oct. 29, 2011

Business Combination

Note 7. Business Combination

In April 2011, the Company acquired the PHY business of a company, which specializes in the design of networking devices. Under the purchase method of accounting, the total purchase price was determined to be $16.3 million and was allocated to tangible asset for $1.1 million, intangible assets for $13.6 million and goodwill for $1.6 million.

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Goodwill and Acquired Intangible Assets, Net (in thousands): (Tables)

9 Months Ended

Oct. 29, 2011

Schedule of Goodwill

The following table summarizes the activity related to the carrying value of goodwill:

Balance at January 29, 2011	$	2,004,833
Additions due to business combinations		4,829
Balance at October 29, 2011	$	2,009,662

Schedule of Finite-Lived Intangible Assets by Major Class

Acquired Intangible Assets, Net

		October 29, 2011							January 29, 2011
	Range of Useful Lives	Gross Carrying Amounts		Accumulated Amortization and Write-Offs			Net Carrying Amount		Gross Carrying Amounts		Accumulated Amortization and Write-Offs			Net Carrying Amount
Purchased technology	1 - 7 years	$	739,605	$	(708,691	)	$	30,914	$	726,040	$	(698,877	)	$	27,163
Core technology	1 - 8 years		212,650		(172,222	)		40,428		212,650		(155,359	)		57,291
Trade name	1 - 5 years		350		(328	)		22		350		(299	)		51
Customer contracts	4 - 7 years		187,200		(166,673	)		20,527		187,200		(156,774	)		30,426
In-process research and development	*		10,541		—			10,541		9,700		—			9,700
Total intangible assets, net		$	1,150,346	$	(1,047,914	)	$	102,432	$	1,135,940	$	(1,011,309	)	$	124,631

* Upon completion of the project, the related in-process research and development (“IPR&D”) assets will be amortized over its estimated useful life. If any of the projects are abandoned or the forecast of the project indicates that the fair value is less than the carrying amount, the Company will be required to impair the related IPR&D asset.

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

Based on the identified intangible assets recorded at October 29, 2011, the future amortization expense excluding IPR&D for the next five fiscal years is as follows (in thousands):

Fiscal year
Remainder of fiscal 2012	$	11,140
2013		41,436
2014		26,753
2015		5,351
2016		2,587
Thereafter		4,624
	$	91,891

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Investments (Tables)

9 Months Ended

Oct. 29, 2011

Schedule of Available-for-sale Securities Reconciliation

The following tables summarize the Company’s investments (in thousands):

	As of October 29, 2011
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
Short-term investments:
Available-for-sale:
Corporate debt securities	$	812,965	$	2,607	$	(1,676	)	$	813,896
U.S. government and agency securities		758,804		1,334		(280	)		759,858
Total short-term investments	$	1,571,769	$	3,941	$	(1,956	)	$	1,573,754
Long-term investments:
Available-for-sale:
Auction rate securities	$	24,550	$	—	$	(1,332	)	$	23,218
Total long-term investments	$	24,550	$	—	$	(1,332	)	$	23,218
Total investments	$	1,596,319	$	3,941	$	(3,288	)	$	1,596,972

	As of January 29, 2011
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
Short-term investments:
Available-for-sale:
Corporate debt securities	$	648,278	$	3,208	$	(213	)	$	651,273
U.S. government and agency securities		431,174		561		(52	)		431,683
Total short-term investments	$	1,079,452	$	3,769	$	(265	)	$	1,082,956
Long-term investments:
Available-for-sale:
Auction rate securities	$	27,850	$	—	$	(1,624	)	$	26,226
Total long-term investments	$	27,850	$	—	$	(1,624	)	$	26,226
Total investments	$	1,107,302	$	3,769	$	(1,889	)	$	1,109,182

Investments Classified by Contractual Maturity Date

The contractual maturities of available-for-sale securities at October 29, 2011 and January 29, 2011 are presented in the following table (in thousands):

	October 29, 2011				January 29, 2011
	Amortized Cost		Estimated Fair Value		Amortized Cost		Estimated Fair Value
Due in one year or less	$	601,692	$	602,491	$	560,190	$	560,999
Due between one and five years		970,077		971,263		519,262		521,957
Due over five years		24,550		23,218		27,850		26,226
	$	1,596,319	$	1,596,972	$	1,107,302	$	1,109,182

Unrealized Loss Position Investments

The following table shows the investments’ gross unrealized losses and fair value, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position (in thousands):

	October 29, 2011
	Less than 12 months					12 months or more					Total
	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
Corporate debt securities	$	250,560	$	(1,676	)	$	—	$	—		$	250,560	$	(1,676	)
U.S. government and agency securities		286,030		(280	)		—		—			286,030		(280	)
Auction rate securities		—		—			23,218		(1,332	)		23,218		(1,332	)
Total securities	$	536,590	$	(1,956	)	$	23,218	$	(1,332	)	$	559,808	$	(3,288	)

	January 29, 2011
	Less than 12 months					12 months or more					Total
	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
Corporate debt securities	$	113,081	$	(213	)	$	—	$	—		$	113,081	$	(213	)
U.S. government and agency securities		91,962		(52	)		—		—			91,962		(52	)
Auction rate securities		—		—			26,226		(1,624	)		26,226		(1,624	)
Total securities	$	205,043	$	(265	)	$	26,226	$	(1,624	)	$	231,269	$	(1,889	)

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Shareholders' Equity

9 Months Ended

Oct. 29, 2011

Shareholders' Equity

Note 11. Shareholders’ Equity

Stock plans

During the three months ended April 30, 2011, the Company issued 3.1 million stock options with a market price condition for a group of senior employees. The Company believes that such awards better align the interests of those employees with the interests of its shareholders. If the market price condition is not met within five years from the date of grant, the options automatically expire.

Activity under the Company’s stock option plans for the nine months ended October 29, 2011 is summarized below (in thousands, except per share amounts):

	Time-Based Options					Market-Based Options					Total
	Options Outstanding			Weighted Average Exercise Price		Options Outstanding			Weighted Average Exercise Price		Options Outstanding			Weighted Average Exercise Price
Balance at January 29, 2011		56,325		$	11.96		—		$	—		56,325		$	11.96
Granted		3,234		$	15.42		3,149		$	15.43		6,383		$	15.42
Canceled/Forfeited		(1,325	)	$	14.68		(25	)	$	15.43		(1,350	)	$	14.69
Exercised		(3,166	)	$	7.85		—		$	—		(3,166	)	$	7.85
Balance at October 29, 2011		55,068		$	12.33		3,124		$	15.43		58,192		$	12.50
Vested or expected to vest at October 29, 2011		54,077		$	12.31		2,646		$	15.43		56,723		$	12.46
Exercisable at October 29, 2011		42,054		$	12.55		—		$	—		42,054		$	12.55

The aggregate intrinsic value and weighted average remaining contractual term of time-based stock options vested and expected to vest at October 29, 2011 was $190.5 million and 4.7 years, respectively.

The aggregate intrinsic value and weighted average remaining contractual term of market-based stock options vested and expected to reach the end of the vesting period at October 29, 2011 was $0 and 9.5 years, respectively.

The aggregate intrinsic value is calculated based on the Company’s closing stock price as reported on the NASDAQ Global Select Market for all in-the-money options as of October 28, 2011.

As of October 29, 2011, compensation costs related to stock options and restricted stock units not yet recognized amounted to $176.2 million.

The unamortized compensation expense for time-based and market-based stock options will be amortized on a straight-line basis and is expected to be recognized over a weighted-average period of 1.9 years and 2.2 years, respectively. The unamortized compensation expense for restricted stock units will be amortized on a straight-line basis and is expected to be recognized over a weighted-average period of 1.6 years. Historically, the Company issued new shares to satisfy stock option exercises.

Included in the following table is activity related to the non-vested portion of the restricted stock units as follows (in thousands, except for prices):

	Restricted Stock Units Outstanding			Weighted Average Grant Date Fair Value
Balance at January 29, 2011		5,486		$	18.75
Granted		6,477		$	15.91
Released		(1,320	)	$	19.62
Canceled/Forfeited		(566	)	$	16.88
Balance at October 29, 2011		10,077		$	16.91

Employee stock purchase plan

The 2000 Employee Stock Purchase Plan, as amended and restated on October 22, 2009 (the “Purchase Plan”), had 20.7 million common shares reserved for issuance thereunder as of October 29, 2011.

During the three and nine months ended October 29, 2011, the Company issued none and 2.4 million shares at a weighted-average price of $12.57, respectively, under the Purchase Plan. During the three and nine months ended October 30, 2010, the Company issued none and 5.4 million shares, respectively, at a weighted-average price of $5.17 under the Purchase Plan. As of October 29, 2011, there was $1.7 million of unrecognized compensation cost related to the Purchase Plan.

On October 31, 2011, the Company amended and restated the Purchase Plan (the “Restated Purchase Plan”). Pursuant to the terms of the Restated Purchase Plan, the offering period for the stock purchase was changed from six months to 24 months. This change will be effective for the offering beginning in December 2011 and is applicable for each successive offering period thereafter. Offering and purchase periods will continue to begin on December 8 and June 8 of each year. Participants enrolled in the new 24-month offering periods will continue in an offering period until the earlier of the end of the offering period or in the event the offering period is reset. A reset occurs if the fair market value of the Company’s common shares on any purchase date is less than it was on the first day of the offering period. Participants in the new 24-month offering periods will be granted the right to purchase common shares at a price per share that is 85% of the lesser of the fair market value of the shares at (i) the participant’s entry date into the two-year offering period or (ii) the end of each six-month purchase period within the offering period.

Stock Repurchase Program

In August 2010, the Company announced that its board of directors had authorized a stock repurchase program of up to $500 million of the Company’s common shares in open market, privately negotiated or block transactions. In March 2011, the Company announced that its board of directors authorized the Company to repurchase up to an additional $500 million, for a total of $1 billion, of its outstanding common shares. In July 2011, the Company announced that its board of directors authorized the Company to repurchase up to an additional $500 million of its outstanding common shares under its share repurchase program, for a total of $1.5 billion. The repurchase program is subject to market conditions and other factors and does not obligate the Company to repurchase any dollar amount or number of its common shares. The program may be extended, modified, suspended or discontinued at any time.

The Company repurchased 15 million shares for $215.2 million in cash during the three months ended October 29, 2011 and repurchased 74.3 million shares for $1.2 billion in cash during the nine months ended October 29, 2011. The Company repurchased 3.6 million shares for $60.6 million in cash during the three and nine months ended October 30, 2010. The repurchased shares were retired immediately after the repurchases were completed.

As of October 29, 2011, the Company had completed share repurchases totaling $1.24 billion under this stock repurchase program, with $258.1 million remaining available for repurchase under the program. Subsequent to the third fiscal quarter and through November 25, 2011, the Company repurchased an additional 8.5 million shares for $119.5 million at an average price per share of $14.10, bringing its total repurchases under the repurchase program to $1.36 billion.

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Restructuring

9 Months Ended

Oct. 29, 2011

Restructuring

Note 9. Restructuring

During the nine months ended October 30, 2010, as a result of the anticipated sale of one of its facilities, the Company classified the carrying value of the building as held for sale within prepaid expenses and other current assets. This resulted in a charge of $1.1 million to write-down the carrying value to fair value in research and development. During the nine months ended October 29, 2011, the Company completed the sale of the building held for sale to an independent third party for $6.8 million, equal to the revised carrying value of the building.

In addition, the Company continued to make payments and incur on-going operating expenses from its previously vacated facilities during the three and nine months ended October 29, 2011.

During the nine months ended October 30, 2010, the Company subleased two of its previously vacated facilities and thus recorded an adjustment to the restructuring liabilities.

The following table sets forth an analysis of the components of the restructuring charges and the payments made (in thousands):

	Three Months Ended						Nine Months Ended
	October 29, 2011			October 30, 2010			October 29, 2011			October 30, 2010
Restructuring liabilities, beginning of period	$	3,209		$	4,842		$	3,306		$	5,397
Facilities and related charges		105			395			1,291			2,741
Equipment and other related charges		—			94			—			94
Non-cash adjustment		(96	)		185			(491	)		(1,272	)
Net cash payments		(301	)		(1,650	)		(1,189	)		(2,993	)
Adjustments to previous assumptions		—			(230	)		—			(331	)
Restructuring liabilities, end of period	$	2,917		$	3,636		$	2,917		$	3,636

The following table presents details of restructuring charges by functional line item (in thousands):

	Three Months Ended				Nine Months Ended
	October 29, 2011		October 30, 2010		October 29, 2011		October 30, 2010
Research and development	$	1	$	187	$	308	$	1,686
Selling and marketing		—		—		—		—
General and administrative		104		72		983		818
	$	105	$	259	$	1,291	$	2,504

The remaining facility lease charges included in the restructuring liabilities will be paid out through fiscal 2018.

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Commitments and Contingencies

9 Months Ended

Oct. 29, 2011

Commitments and Contingencies

Note 10. Commitments and Contingencies

Purchase commitments

Under the Company’s manufacturing relationships with its foundry partners, cancellation of all outstanding purchase orders are allowed but require payment of all costs and expenses incurred through the date of cancellation. As of October 29, 2011, these foundries had incurred approximately $293.5 million of manufacturing costs and expenses relating to the Company’s outstanding purchase orders.

Intellectual property indemnification

The Company has agreed to indemnify certain customers for claims made against the Company’s products, where such claims allege infringement of third party intellectual property rights, including, but not limited to, patents, registered trademarks, and/or copyrights. Under the aforementioned indemnification clauses, the Company may be obligated to defend the customer and pay for the damages awarded against the customer under an infringement claim as well as the customer’s attorneys’ fees and costs. The Company’s indemnification obligations generally do not expire after termination or expiration of the agreement containing the indemnification obligation. In certain cases, there are limits on and exceptions to the Company’s potential liability for indemnification. Although historically the Company has not made significant payments under these indemnification obligations, the Company cannot estimate the amount of potential future payments, if any, that it might be required to make as a result of these agreements. The maximum potential amount of any future payments that the Company could be required to make under these indemnification obligations could be significant.

Contingencies

IPO Securities Litigation. In 2001, two putative class action lawsuits were filed in the United States District Court for the Southern District of New York concerning certain alleged underwriting practices related to the Company’s initial public offering (the “IPO”) on June 29, 2000. The actions were consolidated and a consolidated complaint was filed, naming as defendants certain investment banks that participated in the IPO, the Company, and two of its officers, one of whom is also a director. Plaintiffs claim that defendants violated certain provisions of the Securities Act of 1933, as amended, and the Securities Exchange Act of 1934, as amended (the “Exchange Act”), by allegedly failing to disclose that the underwriters received “excessive” and undisclosed commissions and entered into unlawful “tie-in” agreements with certain of their clients. The consolidated complaint seeks unspecified damages, interest and fees. In addition, this case has been coordinated with hundreds of other lawsuits filed by plaintiffs against underwriters and issuers for approximately 300 other IPOs. Defendants in the coordinated proceedings moved to dismiss the actions. In February 2003, the trial court granted the motions in part and denied them in part, allowing certain claims to proceed.

The parties have reached a global settlement of the coordinated litigation. Under the settlement, the insurers will pay the full amount of settlement share allocated to the Company, and the Company will bear no financial liability. The Company and other defendants will receive complete dismissals from the case. In 2009, the district court issued an order of final approval of the settlement. Certain objectors filed appeals, a number of which were dismissed by agreement or by the appellate court. The current matter on appeal is the district court’s August 2011 ruling that the remaining appellate was not a class member with standing to object to the settlement. If for any reason the settlement does not become effective, the Company believes it has meritorious defenses to the claims against it and intends to defend the action vigorously.

Section 16(b) Litigation. On October 9, 2007, a purported shareholder of the Company filed a complaint for violation of Section 16(b) of the Exchange Act, which prohibits short swing trading, against the Company’s IPO underwriters. The complaint Vanessa Simmonds v. The Goldman Sachs Group, et al., Case No. C07-1632 filed in District Court for the Western District of Washington, seeks the recovery of short swing profits. The Company is named as a nominal defendant only, and no recovery is sought from the Company. In March 2009, the district court granted a motion to dismiss filed by the underwriter defendants, which caused the case against the Company to be dismissed. The plaintiff appealed to the U.S. Court of Appeals for the Ninth Circuit, and in December 2010, the Ninth Circuit reversed the dismissal and remanded to the district court. On January 25, 2011, the Ninth Circuit entered an order staying the mandate pending the filing of petitions for writ of certiorari in the United States Supreme Court by the underwriter defendants. No discovery has taken place. Both sides have filed petitions for writ of certiorari to the United States Supreme Court. The Supreme Court denied plaintiff’s writ, but granted the underwriters’ writ, which argued that the case should have been dismissed on statute of limitations grounds. A decision is expected during the on-going term of the court, which ends in June 2012. If the Supreme Court reverses the Ninth Circuit, the case will be concluded. If the Supreme Court affirms the Ninth Circuit, the case will be remanded to the District Court for further proceedings.

Jasmine Networks Litigation. On September 12, 2001, Jasmine Networks, Inc. (“Jasmine”) filed a lawsuit in the Santa Clara County Superior Court alleging claims against Marvell Semiconductor, Inc. (“MSI”) and three of its officers for allegedly improperly obtaining and using information and technologies during the course of the negotiations with its personnel regarding the potential acquisition of certain Jasmine assets by MSI.

The case proceeded to trial on September 20, 2010. On November 24, 2010, a Santa Clara County jury returned a verdict in favor of MSI on all claims. On January 7, 2011, the court entered judgment in MSI’s favor. Pursuant to California Civil Procedure provisions, Jasmine filed motions for a new trial and for a judgment notwithstanding the verdict. These motions were heard by the court on February 25, 2011 and denied in written orders. Jasmine has appealed and MSI is contesting the appeal vigorously.

Wage and Hour Class Action. On October 18, 2006, Dan Holton (“Holton”), a former employee of MSI, filed a civil complaint in Santa Clara County Superior Court. Holton alleges that MSI misclassified him as an exempt employee. Holton claims that due to its misclassification MSI owes him unpaid wages for overtime, penalties for missed meal periods, and various other penalties under the California Labor Code, as well as interest. Holton also pursues a cause of action for unfair business practices under the California Business & Profession Code. Holton brought his complaint as a class action. On July 8, 2009, the court granted certification of the following class: “All Individual Contributor Engineers who held the title of PCB Designer, Associate Engineer, Engineer, Staff Engineer and Senior Engineers, who at any time during the class period while holding these positions did not have a degree above a baccalaureate degree nor a degree above a baccalaureate degree in a field of science related to the work performed, and worked for MSI in California, at any time from October 19, 2002 through the present.” MSI disputes all of plaintiff’s class claims. On June 23, 2011, MSI filed a motion for decertification of the class, which was heard by the court on August 25, 2011. On September 6, 2011 the court granted decertification of the plaintiffs’ meal period claims and denied the remainder of MSI’s motion for decertification of the class. On September 19, 2011 the parties attended a mediation and subsequently agreed in principal to settle this matter. On November 23, 2011, the parties executed a settlement agreement and plaintiffs filed their motion for preliminary approval of the settlement. The anticipated settlement amount has been recorded in the Company’s financial statements for the three months ended October 29, 2011 and is not significant to the results of operations for the three and nine months ended October 29, 2011.

Carnegie Mellon Litigation. On March 6, 2009, Carnegie Mellon University (“CMU”) filed a complaint in the United States District Court for the Western District of Pennsylvania naming MSI and the Company as defendants and alleging patent infringement. CMU has asserted two patents (U.S. Patent Nos. 6,201,839 and 6,438,180) purportedly relating to read-channel integrated circuit devices and the hard disk drive products incorporating such devices. The complaint seeks unspecified damages and an injunction. On June 1, 2009, MSI and the Company filed their answers and MSI filed counterclaims to the complaint seeking declaratory judgments of non-infringement and invalidity as to both of the asserted patents. The claim construction hearing was held on April 12 and 13, 2010, and a ruling was issued on October 1, 2010. On April 29, 2010, MSI and the Company filed their amended answers and counterclaims. The Company and MSI filed a motion for partial summary judgment of invalidity on December 22, 2010, which was denied on September 28, 2011. MSI and the Company filed a second motion for partial summary judgment of invalidity on November 2, 2011. The court has scheduled oral argument on that motion for December 6, 2011. Trial is set for November 26, 2012. MSI and the Company believe that they do not infringe any valid and enforceable claims of the asserted CMU patents and intend to contest this action vigorously.

Xpoint Patent Litigation. On August 21, 2009, Xpoint Technologies, Inc. filed a complaint in the United States District of Delaware, which names the Company, MSI and 36 other companies as defendants. The complaint alleged infringement of U.S. Patent No. 5,913,028, which purportedly relates to data traffic delivery. The complaint seeks unspecified damages and an injunction. A first amended complaint was filed on September 18, 2009 and a second amended complaint was filed on August 20, 2010. On October 28, 2009, the Company was dismissed from the lawsuit. On April 20, 2011, MSI was dismissed from the lawsuit.

USEI Litigation. On October 9, 2009, U.S. Ethernet Innovations, LLC (“USEI”) filed a complaint in the Eastern District of Texas, in which USEI has accused a number of system manufacturers, including the Company’s customers, of patent infringement (the “USEI litigation”). Specifically, USEI has asserted that these customers infringe U.S. Patent Nos. 5,307,459, 5,434,872, 5,732,094 and 5,299,313 (collectively, the “USEI patents in suit”), which purportedly relate to Ethernet technologies. The complaint seeks unspecified damages and an injunction.

On May 4, 2010, MSI filed a motion to intervene in the USEI litigation, which was granted on May 19, 2010. On July 13, 2010, the court issued an order granting the Defendants’ motion to transfer the action to the Northern District of California; the case was formally transferred on August 23, 2010. On October 21, 2011, the court conducted a claim construction hearing. The court has not yet set dates for trial. MSI believes that it does not infringe any valid and enforceable claim of the USEI patents in suit, and intends to litigate this action vigorously.

Lake Cherokee Patent Litigation. On June 30, 2010, Lake Cherokee Hard Drive Technologies, L.L.C. filed a complaint in the United States District Court in the Eastern District of Texas. The complaint names MSI and seven other defendants, and alleges infringement of U.S. Patent Nos. 5,844,738 and 5,978,162 (collectively, the “Lake Cherokee patents in suit”). The Lake Cherokee patents in suit purportedly relate to read-channel integrated circuit devices, and allegedly, to certain unspecified hard disk drive products incorporating such devices. The complaint seeks unspecified damages and a permanent injunction. MSI filed its answer and counterclaims to the complaint on September 13, 2010. Defendants filed a motion to transfer on April 1, 2011. Lake Cherokee filed an amended complaint on April 21, 2011. MSI filed its answer and counterclaims to the amended complaint on May 9, 2011. A Markman hearing is scheduled for May 23, 2012, and trial is set for August 5, 2013. MSI intends to vigorously defend this action.

APT Patent Litigation. On January 18, 2011, Advanced Processor Technologies, LLC, a subsidiary of Acacia Research Corp., filed a complaint in the United States District Court in the Eastern District of Texas. The complaint names MSI and eight other defendants and alleges infringement of U.S. Patent Nos. 6,047,359 (“’359 patent”) and 5,796,978 (“’978 patent”). The asserted patents purportedly relate to microprocessor technologies. The complaint seeks unspecified damages and a permanent injunction. A first amended complaint was filed on January 26, 2011. The first amended complaint continues to assert the ‘359 patent against MSI, but appears to no longer assert the ‘978 patent against MSI. MSI filed its answer and counterclaims on April 15, 2011. MSI intends to vigorously defend this action. A claim construction hearing is scheduled for December 4, 2013, and jury selection is set for July 7, 2014.

LAMD Patent Litigations. On October 11, 2010, Marvell International Ltd. (“MIL”) filed a complaint against Link-A-Media Devices Corporation (“LAMD”) in the United States District Court for the District of Delaware. The complaint asserts that LAMD infringes its U.S. Patent Nos. 7,328,395, 7,751,138, 7,099,411 and 7,228,485. On June 30, 2011, MIL filed a motion to amend its complaint to add U.S. Patent Nos. 6,903,448 and 7,528,013. The complaint seeks unspecified damages and a permanent injunction. A claim construction hearing is scheduled for October 2012, and trial is set for January 2013.

On February 10, 2011, LAMD filed a complaint against MSI in the United States District Court for the Northern District of California. The complaint asserts that MSI infringes LAMD’s U.S. Patent No. 7,590,927. The complaint seeks unspecified damages and a permanent injunction. MSI filed its answer and counterclaims on May 3, 2011. MSI believes that it does not infringe any valid and enforceable claim of the LAMD patent in suit. A claim construction hearing is scheduled for June 2012, and trial is set for February 2013.

On November 21, 2011, MIL and MSI obtained a favorable settlement with LAMD relating to the Delaware and California cases, and expect that the cases will be dismissed soon.

MOSAID Litigation. On March 16, 2011, MOSAID Technologies Inc. filed suit in the United States District for the Eastern District of Texas against MSI and 16 other companies. The complaint alleges that defendants’ products, which operate in compliance with the IEEE 802.11a, 802.11b, 802.11g, and 802.11n standards, infringe the six asserted patents (U.S. Patent Nos. 5,131,006; 5,151,920; 5,422,887; 5,706,428; 6,563,768; 6,992,972). MSI filed its answer and counterclaims on June 9, 2011. A claim construction hearing is scheduled for February 18, 2014, and jury selection is set for August 4, 2014. MSI intends to vigorously defend this action.

Azure Networks Litigation. On March 22, 2011, Azure Networks LLC and Tri-County Excelsior Foundation filed suit in the Eastern District of Texas against MSI and eight other companies. The suit alleges that MSI’s Bluetooth products infringe its U.S. Patent No. 7,756,129. MSI filed its answer and counterclaims on July 20, 2011. A claim construction hearing is scheduled for November 29, 2012, and trial is set for November 12, 2013. MSI intends to vigorously defend this action.

Power Management Systems Litigation. On August 22, 2011, Power Management Systems LLC, a subsidiary of Acacia Research Corp., filed a complaint against MSI and three other defendants, in the federal district court for the District of Delaware. The complaint asserts U.S. Patent No. 5,504,909, which purportedly relates to a power management apparatus, against various products. The complaint seeks unspecified damages. MSI intends to vigorously defend this action.

HSM/TPL Litigation. On September 1, 2011, HSM Portfolio, LLC and Technology Properties Limited, LLC filed a complaint against the Company and its subsidiary, Marvell Semiconductor, Ltd. (“MSL”), in the federal district court for the District of Delaware. The complaint also named numerous other defendants. The complaint asserts U.S. Patent No. 5,030,853, purportedly relating to high speed logic and memory circuitry, against various products. The complaint seeks unspecified damages. The Company and MSL intend to vigorously defend this action.

General. The Company is also party to various other legal proceedings and claims arising in the normal course of business. The legal proceedings and claims described above could result in substantial costs and could divert the attention and resources of the Company’s management. Although the legal responsibility and financial impact with respect to each of these proceedings and claims cannot currently be ascertained, an unfavorable outcome in any of such actions could have a material adverse effect on the Company’s cash flows. As to each of the ongoing legal matters mentioned above, the Company is currently unable to estimate a possible loss or range of loss, if any. Litigation is subject to inherent uncertainties and unfavorable rulings could occur. An unfavorable ruling in litigation could require the Company to pay damages or one-time license fees or royalty payments and could prevent the Company from manufacturing or selling some of its products or limit or restrict the type of work that employees involved in such litigation may perform for the Company, any of which could adversely affect financial results in future periods. The Company believes that it competes lawfully and that its marketing, business and intellectual property benefit is customers and shareholders, and it will continue to conduct a vigorous defense in these proceedings. There can be no assurance that these matters will be resolved in a manner that is not adverse to the Company’s business, financial condition, results of operations or cash flows.

Indemnities, Commitments and Guarantees

During its normal course of business, the Company has made certain indemnities, commitments and guarantees under which it may be required to make payments in relation to certain transactions. These indemnities include intellectual property indemnities to the Company’s customers in connection with the sales of its products, indemnities for liabilities associated with the infringement of other parties’ technology based upon the Company’s products, indemnities to various lessors in connection with facility leases for certain claims arising from such facility or lease, and indemnities to directors and officers of the Company to the maximum extent permitted under the laws of Bermuda. In addition, the Company has contractual commitments to various customers, which could require the Company to incur costs to repair an epidemic defect with respect to its products outside of the normal warranty period if such defect were to occur. The duration of these indemnities, commitments and guarantees varies, and in certain cases, is indefinite. The majority of these indemnities, commitments and guarantees do not provide for any limitation of the maximum potential future payments that the Company could be obligated to make. The Company has not recorded any liability for these indemnities, commitments and guarantees in the accompanying Consolidated Balance Sheets. The Company does, however, accrue for losses for any known contingent liability, including those that may arise from indemnification provisions, when future payment is probable.

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Stock-Based Compensation

9 Months Ended

Oct. 29, 2011

Stock-Based Compensation

Note 12. Stock-Based Compensation

The following table presents details of stock-based compensation expenses by functional line item (in thousands):

	Three Months Ended				Nine Months Ended
	October 29, 2011		October 30, 2010		October 29, 2011		October 30, 2010
Cost of goods sold	$	1,940	$	1,818	$	5,551	$	5,746
Research and development		21,905		19,795		63,626		60,735
Selling and marketing		3,402		3,208		9,263		8,778
General and administrative		3,364		4,720		10,006		11,867
	$	30,611	$	29,541	$	88,446	$	87,126

Stock-based compensation of $1.5 million was capitalized in inventory as of October 29, 2011 and January 29, 2011.

Valuation Assumptions

The following weighted average assumptions were used for each respective period to calculate the fair value of each time-based equity award on the date of grant using the Black-Scholes option pricing model and of each market-based equity award using a Monte Carlo simulation model:

Time-based Stock Options

	Three Months Ended						Nine Months Ended
	October 29, 2011			October 30, 2010			October 29, 2011			October 30, 2010
Estimated fair value	$	5.97		$	7.40		$	6.08		$	9.34
Volatility		49	%		53	%		43	%		53	%
Expected term (in years)		4.8			4.7			4.8			4.7
Risk-free interest rate		1.0	%		1.4	%		2.0	%		2.2	%
Dividend yield		—			—			—			—

Market-based Stock Options

	Three and  Nine Months Ended
	October 29, 2011
Estimated fair value	$	5.08
Expected Volatility		42	%
Risk-free interest rate		0.85 - 3.59	%
Dividend yield		—

The fair value of each market-based option award is estimated on the date of grant using a Monte Carlo simulation model that uses the assumptions noted in the above table, including the same volatility applied to the Company’s time-based options. Because a Monte Carlo simulation model incorporates ranges of assumptions for inputs, those ranges are disclosed where applicable. The Company uses historical data to estimate employee termination within the valuation model. The expected term of options granted of 2.66 years was derived from the output of the valuation model and represents the period of time that options granted are expected to be outstanding.

Employee Stock Purchase Plan

	Three and Nine Months Ended
	October 29, 2011			October 30, 2010
Estimated fair value	$	4.09		$	5.14
Volatility		46	%		53	%
Expected term (in years)		0.5			0.5
Risk-free interest rate		0.2	%		0.2	%
Dividend yield		—			—

The expected volatility for awards granted during the three and nine months ended October 29, 2011 is based on an equally weighted combination of historical stock price volatility and implied volatility derived from traded options on the Company’s stock in the marketplace. The expected volatility for awards granted during the three and nine months ended October 30, 2010 is based solely on historical stock price volatility. The calculation of expected volatility for previous periods was also based solely on historical stock price volatility. The Company believes that the combination of historical volatility and implied volatility provides a better estimate of future stock price volatility.

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Accrued Liabilities (Detail) (USD $) In Thousands, unless otherwise specified	Oct. 29, 2011	Jan. 29, 2011
Schedule of Accrued Liabilities [Line Items]
Accrued rebates	$ 25,956	$ 32,405
Accrued royalties	14,109	14,018
Accrued legal expense	12,646	8,551
Technology license obligation	6,410	4,850
Customer advances for NRE services	2,377	3,515
Accrued fees for tax, audit and other professional services	1,757	2,125
Income tax payable	1,719
Accrued sales/goods and services tax	1,349	3,679
Other	16,348	16,851
Accrued liabilities	$ 82,671	$ 85,994

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Commitments and Contingencies - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Apr. 30, 2011 Plaintiff	Oct. 29, 2011 Manufacturing Expense
Commitments and Contingencies Disclosure [Line Items]
Purchase commitment, outstanding commitment		$ 293.5
Loss Contingency, Lawsuit Filing Date	In 2001
IPO Securities Litigation, jurisdiction of the court of law	two putative class action lawsuits were filed in the United States District Court for the Southern District of New York
IPO Securities Litigation, number of class action lawsuits filed	2
IPO Securities Litigation, the claim	concerning certain alleged underwriting practices related to the Company’s initial public offering (the “IPO”) on June 29, 2000
IPO Securities Litigation, named defendants	The actions were consolidated and a consolidated complaint was filed, naming as defendants certain investment banks that participated in the IPO, the Company, and two of its officers, one of whom is also a director.
IPO Securities Litigation, laws alleged to have been violated	Plaintiffs claim that defendants violated certain provisions of the Securities Act of 1933, as amended, and the Securities Exchange Act of 1934, as amended (the “Exchange Act”), by allegedly failing to disclose that the underwriters received “excessive” and undisclosed commissions and entered into unlawful “tie-in” agreements with certain of their clients
IPO Securities Litigation, damages sought	The consolidated complaint seeks unspecified damages, interest and fees
IPO Securities Litigation, action taken by defendant	Defendants in the coordinated proceedings moved to dismiss the actions
IPO Securities Litigation, action taken by the trial court	February 2003, the trial court granted the motions in part and denied them in part, allowing certain claims to proceed.

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Derivative Financial Instruments (Tables)

9 Months Ended

Oct. 29, 2011

Schedule of Derivative Instruments

As of October 29, 2011 and January 29, 2011, the notional amounts of outstanding forward contracts were as follows (in thousands):

	October 29, 2011				January 29, 2011
	Buy Contracts		Sell Contracts		Buy Contracts		Sell Contracts
Israeli shekel	$	67,361	$	—	$	56,360	$	—
Euro		—		—		—		3,698
	$	67,361	$	—	$	56,360	$	3,698

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Stock-Based Compensation (Tables)

9 Months Ended

Oct. 29, 2011

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs

The following table presents details of stock-based compensation expenses by functional line item (in thousands):

	Three Months Ended				Nine Months Ended
	October 29, 2011		October 30, 2010		October 29, 2011		October 30, 2010
Cost of goods sold	$	1,940	$	1,818	$	5,551	$	5,746
Research and development		21,905		19,795		63,626		60,735
Selling and marketing		3,402		3,208		9,263		8,778
General and administrative		3,364		4,720		10,006		11,867
	$	30,611	$	29,541	$	88,446	$	87,126

Time Based Option Award

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

Time-based Stock Options

	Three Months Ended						Nine Months Ended
	October 29, 2011			October 30, 2010			October 29, 2011			October 30, 2010
Estimated fair value	$	5.97		$	7.40		$	6.08		$	9.34
Volatility		49	%		53	%		43	%		53	%
Expected term (in years)		4.8			4.7			4.8			4.7
Risk-free interest rate		1.0	%		1.4	%		2.0	%		2.2	%
Dividend yield		—			—			—			—

Market Based Option Award

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

Market-based Stock Options

	Three and  Nine Months Ended
	October 29, 2011
Estimated fair value	$	5.08
Expected Volatility		42	%
Risk-free interest rate		0.85 - 3.59	%
Dividend yield		—

Employee Stock Purchase Plan

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

Employee Stock Purchase Plan

	Three and Nine Months Ended
	October 29, 2011			October 30, 2010
Estimated fair value	$	4.09		$	5.14
Volatility		46	%		53	%
Expected term (in years)		0.5			0.5
Risk-free interest rate		0.2	%		0.2	%
Dividend yield		—			—

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Analysis of the Components of the Restructuring Charges and the Payments Made (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Oct. 29, 2011	Oct. 30, 2010	Oct. 29, 2011	Oct. 30, 2010
Restructuring Cost and Reserve [Line Items]
Restructuring liabilities, beginning of period	$ 3,209	$ 4,842	$ 3,306	$ 5,397
Non-cash adjustment	(96)	185	(491)	(1,272)
Net cash payments	(301)	(1,650)	(1,189)	(2,993)
Adjustments to previous assumptions		(230)		(331)
Restructuring liabilities, end of period	2,917	3,636	2,917	3,636
Facilities and related charges
Restructuring Cost and Reserve [Line Items]
Restructuring charges	105	395	1,291	2,741
Equipment and other related charges
Restructuring Cost and Reserve [Line Items]
Restructuring charges		$ 94		$ 94

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Fair Value Measurements - Additional Information (Detail)	Oct. 29, 2011
Fair Value, Measurement Inputs, Disclosure [Line Items]
Percentage of total amount of assets measured using Level 3 valuation methodologies to total assets	0.40%

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The Company and Basis of Presentation

9 Months Ended

Oct. 29, 2011

The Company and Basis of Presentation

Note 1. The Company and Basis of Presentation

The Company

Marvell Technology Group Ltd., a Bermuda company (the “Company”), is a leading global semiconductor provider of high-performance application specific standard products. The Company’s core strength of expertise is the development of complex System-on-a-Chip devices leveraging its extensive technology portfolio of intellectual property in the areas of analog, mixed-signal, digital signal processing and embedded ARM-based microprocessor integrated circuits. The Company develops platforms that it defines as integrated hardware and software that incorporate digital computing technologies designed and configured to provide an optimal computing solution compared to individual components. The Company’s broad product portfolio includes devices for data storage, enterprise-class Ethernet data switching, Ethernet physical-layer transceivers, handheld cellular, Ethernet-based wireless networking, personal area networking, Ethernet-based PC connectivity, control plane communications controllers, video-image processing and power management solutions.

Basis of presentation

The Company’s fiscal year is the 52- or 53-week period ending on the Saturday closest to January 31. In a 52-week year, each fiscal quarter consists of 13 weeks. The additional week in a 53-week year is added to the fourth quarter, making such quarter consist of 14 weeks. Fiscal 2012 and fiscal 2011 are comprised of 52-week periods.

The unaudited interim condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and notes required by GAAP for annual financial statements. In the opinion of management, all adjustments consisting of normal and recurring entries considered necessary for a fair statement of the results for the interim periods have been included in the Company’s balance sheet as of October 29, 2011, the results of its operations for the three and nine months ended October 29, 2011 and October 30, 2010, and its cash flows for the nine months ended October 29, 2011 and October 30, 2010. The January 29, 2011 condensed consolidated balance sheet data was derived from audited consolidated financial statements included in the Company’s Annual Report on Form 10-K for the fiscal year ended January 29, 2011 but does not include all disclosures required for annual periods. Certain reclassifications have been made to conform to the current period’s presentation.

These condensed consolidated financial statements and related notes are unaudited and should be read in conjunction with the Company’s audited financial statements and related notes included in the Company’s Annual Report on Form 10-K for the fiscal year ended January 29, 2011 as filed on March 28, 2011 with the Securities and Exchange Commission. The results of operations for the three and nine months ended October 29, 2011 are not necessarily indicative of the results that may be expected for any other interim period or for the full fiscal year.

Use of estimates

The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates, judgments and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses, and related disclosure of contingent assets and liabilities. On an on-going basis, the Company evaluates its estimates, including those related to performance-based compensation, revenue recognition, including provisions for sales returns and allowances, inventory excess and obsolescence, investment fair values, goodwill and other intangible assets, income taxes, litigation and other contingencies. In addition, the Company uses assumptions when employing the Monte Carlo simulation and Black-Scholes valuation models to calculate the fair value of stock-based awards granted. The Company bases its estimates of the carrying value of certain assets and liabilities on historical experience and on various other assumptions that are believed to be reasonable under the circumstances when these carrying values are not readily available from other sources. Actual results could differ from these estimates, and such differences could affect the results of operations reported in future periods.

Principles of consolidation

The unaudited condensed consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All intercompany accounts and transactions have been eliminated. The functional currency of the Company and its subsidiaries is the United States dollar.

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Fair Value Measurements

9 Months Ended

Oct. 29, 2011

Fair Value Measurements

Note 6. Fair Value Measurements

Fair value is an exit price representing the amount that would be received in the sale of an asset or paid to transfer a liability in an orderly transaction between market participants. As such, fair value is a market-based measurement that should be determined based on assumptions that market participants would use in pricing an asset or a liability. As a basis for considering such assumptions, the accounting guidance establishes a three-tier value hierarchy, which prioritizes the inputs used in the valuation methodologies in measuring fair value:

Level 1 - Observable inputs that reflect quoted prices (unadjusted) for identical assets or liabilities in active markets.

Level 2 - Include other inputs that are directly or indirectly observable in the marketplace.

Level 3 - Unobservable inputs that are supported by little or no market activity.

The fair value hierarchy also requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value.

The Company measures its cash equivalents and marketable securities at fair value. The Company’s cash equivalents and marketable securities are primarily classified within Level 1 with the exception of its investments in auction rate securities, which are classified within Level 3. Cash equivalents and marketable securities are valued primarily using quoted market prices utilizing market observable inputs. The Company’s investments in corporate debt securities are classified within Level 2 as the market inputs to value these instruments consist of market yields, reported trades and broker/dealer quotes. In addition, foreign currency contracts are classified within Level 2 as the valuation inputs are based on quoted prices and market observable data of similar instruments. The Company’s investments in auction rate securities are classified within Level 3 because there are no active markets for the auction rate securities and therefore the Company is unable to obtain independent valuations from market sources. Therefore, the auction rate securities were valued using a discounted cash flow model. Some of the inputs to the cash flow model are unobservable in the market. The total amount of assets measured using Level 3 valuation methodologies represented 0.4% of total assets as of October 29, 2011.

The tables below set forth, by level, the Company’s financial assets that were accounted for at fair value as of October 29, 2011 and January 29, 2011. The tables do not include assets and liabilities that are measured at historical cost or any basis other than fair value (in thousands):

	Level 1		Level 2		Level 3		Portion of Carrying Value Measured at Fair Value at October 29, 2011
Items measured at fair value on a recurring basis:
Assets
Cash equivalents:
Money market funds	$	19,242	$	—	$	—	$	19,242
U.S. government and agency securities		13,000		—		—		13,000
Corporate debt securities				11,499		—		11,499
Time deposit		132,441		—		—		132,441
Short-term investments:
U.S. government and agency securities		759,858		—		—		759,858
Corporate debt securities		—		813,896		—		813,896
Long-term investments:
Auction rate securities		—		—		23,218		23,218
Other non-current assets:
Severance pay fund		868		1,740		—		2,608
Total assets	$	925,409	$	827,135	$	23,218	$	1,775,762
Liabilities
Accrued liabilities:
Forward contracts	$	—	$	797	$	—	$	797
Total liabilities	$	—	$	797	$	—	$	797

	Level 1		Level 2		Level 3		Portion of Carrying Value Measured at Fair Value at January 29, 2011
Items measured at fair value on a recurring basis:
Assets
Cash equivalents:
Money market funds	$	1,230,616	$	—	$	—	$	1,230,616
U.S. government and agency securities		106,487		—		—		106,487
Corporate debt securities		—		9,797		—		9,797
Time deposit		159,938		—		—		159,938
Short-term investments:
U.S. government and agency securities		431,683		—		—		431,683
Corporate debt securities		—		651,273		—		651,273
Long-term investments:
Auction rate securities		—		—		26,226		26,226
Prepaid expense and other current assets:
Forward contracts		—		166		—		166
Other non-current assets:
Severance pay fund		2,425		2,394		—		4,819
Total assets	$	1,931,149	$	663,630	$	26,226	$	2,621,005
Liabilities
Accrued liabilities:
Forward contracts	$	—	$	804	$	—	$	804
Total liabilities	$	—	$	804	$	—	$	804

The following tables summarize the change in fair value for Level 3 items during the nine months ended October 29, 2011 and October 30, 2010 (in thousands):

	Level 3
Changes in fair value during the nine months ended October 29, 2011 (pre-tax):
Beginning balance at January 30, 2011	$	26,226
Purchases		—
Sales, redemption and settlement		(3,300	)
Unrealized gain included in accumulated other comprehensive income (loss)		292
Ending balance at October 29, 2011	$	23,218

	Level 3
Changes in fair value during the nine months ended October 30, 2010 (pre-tax):
Beginning balance at January 31, 2010	$	39,281
Purchases		—
Sales, redemption and settlement		(8,516	)
Realized loss on sale		(134	)
Unrealized gain included in accumulated other comprehensive income (loss)		234
Ending balance at October 30, 2010	$	30,865

Assets measured and recorded at fair value on a non-recurring basis as of October 29, 2011 and January 29, 2011 were not significant.

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Fair Value of Each Market-Based Option Award Estimated Using Monte Carlo Simulation Model (Detail) (Market Based Option Award, USD $)	3 Months Ended	9 Months Ended
	Oct. 29, 2011	Oct. 29, 2011
Market Based Option Award
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Estimated fair value	$ 5.08	$ 5.08
Expected Volatility	42.00%	42.00%
Risk-free interest rate, minimum	0.85%	0.85%
Risk-free interest rate, maximum	3.59%	3.59%
Dividend yield

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Summary of Investments (Detail) (USD $) In Thousands, unless otherwise specified	Oct. 29, 2011	Jan. 29, 2011
Gain (Loss) on Investments [Line Items]
Amortized Cost	$ 1,596,319	$ 1,107,302
Gross Unrealized Gains	3,941	3,769
Gross Unrealized Losses	(3,288)	(1,889)
Estimated Fair Value	1,596,972	1,109,182
Short-term Investments
Gain (Loss) on Investments [Line Items]
Amortized Cost	1,571,769	1,079,452
Gross Unrealized Gains	3,941	3,769
Gross Unrealized Losses	(1,956)	(265)
Estimated Fair Value	1,573,754	1,082,956
Short-term Investments | Available-for-sale | Corporate debt securities
Gain (Loss) on Investments [Line Items]
Amortized Cost	812,965	648,278
Gross Unrealized Gains	2,607	3,208
Gross Unrealized Losses	(1,676)	(213)
Estimated Fair Value	813,896	651,273
Short-term Investments | Available-for-sale | US government and agencies
Gain (Loss) on Investments [Line Items]
Amortized Cost	758,804	431,174
Gross Unrealized Gains	1,334	561
Gross Unrealized Losses	(280)	(52)
Estimated Fair Value	759,858	431,683
Long-term investments
Gain (Loss) on Investments [Line Items]
Amortized Cost	24,550	27,850
Gross Unrealized Losses	(1,332)	(1,624)
Estimated Fair Value	23,218	26,226
Long-term investments | Auction rate securities
Gain (Loss) on Investments [Line Items]
Gross Unrealized Losses	(1,300)
Long-term investments | Available-for-sale | Auction rate securities
Gain (Loss) on Investments [Line Items]
Amortized Cost	24,550	27,850
Gross Unrealized Losses	(1,332)	(1,624)
Estimated Fair Value	$ 23,218	$ 26,226

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Changes in the Components of Other Comprehensive Income ("OCI") (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Oct. 29, 2011	Oct. 30, 2010	Oct. 29, 2011	Oct. 30, 2010
Net income	$ 195,121	$ 255,732	$ 534,374	$ 681,276
Other comprehensive income
Net unrealized gain (loss) on marketable securities	(3,515)	1,939	(1,519)	3,795
Net unrealized gain on auction rate securities	248	181	292	234
Net unrealized gain (loss) on cash flow hedges	(2,895)	951	(160)	460
Change in other	115			(2)
Total comprehensive income	$ 189,074	$ 258,803	$ 532,987	$ 685,763

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Supplemental Financial Information (in thousands) (Tables)

9 Months Ended

Oct. 29, 2011

Schedule of Inventory, Current

Inventories

	October 29, 2011		January 29, 2011
Work-in-process	$	173,899	$	156,108
Finished goods		136,069		89,340
Inventories	$	309,968	$	245,448

Property, Plant and Equipment

Property and equipment, net

	October 29, 2011			January 29, 2011
Machinery and equipment	$	471,973		$	435,900
Computer software		80,358			74,966
Furniture and fixtures		24,044			23,498
Leasehold improvements		35,618			34,142
Buildings		144,596			144,596
Building improvements		42,029			41,200
Land		69,246			69,246
Construction in progress		8,476			8,469
		876,340			832,017
Less: Accumulated depreciation and amortization		(502,712	)		(473,577	)
Property and equipment, net	$	373,628		$	358,440

Schedule of Other Assets, Noncurrent

Other non-current assets

	October 29, 2011		January 29, 2011
Technology and other licenses	$	54,355	$	51,642
Deferred tax assets		25,703		27,671
Investments in privately held companies		6,073		3,950
Deferred compensation		4,956		6,169
Prepayments for foundry capacity		4,725		5,289
Severance fund		2,608		4,819
Other		12,500		11,840
Other non-current assets	$	110,920	$	111,380

Schedule of Accrued Liabilities

Accrued liabilities

	October 29, 2011		January 29, 2011
Accrued rebates	$	25,956	$	32,405
Accrued royalties		14,109		14,018
Accrued legal expense		12,646		8,551
Technology license obligation		6,410		4,850
Customer advances for NRE services		2,377		3,515
Accrued fees for tax, audit and other professional services		1,757		2,125
Income tax payable		1,719		—
Accrued sales/goods and services tax		1,349		3,679
Other		16,348		16,851
Accrued liabilities	$	82,671	$	85,994

Other Noncurrent Liabilities

Other long-term liabilities

	October 29, 2011		January 29, 2011
Technology license obligation	$	12,134	$	19,218
Long-term accrued employee compensation		9,752		9,258
Facilities consolidation		2,233		3,271
Accrued severance		1,990		3,226
Other		8,104		4,367
Other long-term liabilities	$	34,213	$	39,340

Schedule of Calculation of Numerator and Denominator in Earnings Per Share

The computations of basic and diluted net income per share are presented in the following table (in thousands, except per share amounts):

	Three Months Ended				Nine Months Ended
	October 29, 2011		October 30, 2010		October 29, 2011		October 30, 2010
Numerator:
Net income	$	195,121	$	255,732	$	534,374	$	681,276
Denominator:
Weighted average common shares outstanding		600,504		649,782		615,987		646,246
Effect of dilutive securities:
Common share options and other		12,995		25,007		15,270		29,777
Weighted average shares — diluted		613,499		674,789		631,257		676,023
Net income per share:
Basic	$	0.32	$	0.39	$	0.87	$	1.05
Diluted	$	0.32	$	0.38	$	0.85	$	1.01

Schedule of Comprehensive Income (Loss)

The changes in the components of other comprehensive income were as follows (in thousands):

	Three Months Ended					Nine Months Ended
	October 29, 2011			October 30, 2010		October 29, 2011			October 30, 2010
Net income	$	195,121		$	255,732	$	534,374		$	681,276
Other comprehensive income
Net unrealized gain (loss) on marketable securities		(3,515	)		1,939		(1,519	)		3,795
Net unrealized gain on auction rate securities		248			181		292			234
Net unrealized gain (loss) on cash flow hedges		(2,895	)		951		(160	)		460
Change in other		115			—		—			(2	)
Total comprehensive income	$	189,074		$	258,803	$	532,987		$	685,763

Schedule of Accumulated Other Comprehensive Income (Loss)

The components of accumulated other comprehensive income (loss) were as follows (in thousands):

	October 29, 2011			January 29, 2011
Unrealized gain on marketable securities	$	1,985		$	3,504
Unrealized loss on auction rate securities		(1,332	)		(1,624	)
Unrealized loss on cash flow hedges		(953	)		(793	)
Other		5			5
Accumulated other comprehensive income (loss)	$	(295	)	$	1,092