Calculation and Allocation of Consideration (Detail) (USD $) In Thousands	Jan. 02, 2011 Actel Corporation	Jul. 03, 2011 AML Communications, Inc	Oct. 02, 2011 Asic Advantage, Inc
Calculation of consideration
Cash consideration to shareholders	$ 548,759	$ 31,264	$ 30,064
Change in control obligations	17,298	1,956
Fair value of vested stock awards assumed by Microsemi	15,294
Total consideration	581,351	33,220
Book value of net assets	182,765	11,397	6,253
Inventories	5,494	304	195
Identifiable intangible assets	232,600	10,000	9,170
Deferred tax liability	(24,379)	(4,675)	(3,339)
Adjustment to goodwill	$ 184,871	$ 16,194	$ 17,785

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Change In Control Obligations

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Amount of cash paid to acquire the entity.

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The acquisition-date fair value of the equity interests of the acquirer, including the number of instruments or interests issued or issuable in consideration for the business combination.

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The total cost of the acquired entity including the cash paid to shareholders of acquired entities, fair value of debt and equity securities issued to shareholders of acquired entities, the fair value of the liabilities assumed, and direct costs of the acquisition.

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The amount of acquisition cost of a business combination allocated to an identifiable intangible asset that will be amortized.

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The amount of acquisition cost of a business combination allocated to inventory, including finished goods, work-in-process, and raw materials.

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Amount of deferred tax assets or liabilities for the differences between the values assigned and the tax bases of assets and liabilities in a business combination, net of any valuation allowance for deferred tax assets.

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Amount of goodwill arising from a business combination, which is the excess of the cost of the acquired entity over the amounts assigned to assets acquired and liabilities assumed.

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