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Adaptive power control based on post package characterization of integrated circuits

  • US 7,953,990 B2
  • Filed: 12/31/2002
  • Issued: 05/31/2011
  • Est. Priority Date: 12/31/2002
  • Status: Expired due to Term
First Claim
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1. A method of operating a specific individual instance of a microprocessor, the method comprising:

  • determining, independent of operating voltage, a desirable operating frequency for the specific individual instance of a microprocessor;

    accessing information specific to the specific individual instance of a microprocessor, wherein the information is used to determine an optimal voltage for operating the specific individual instance of a microprocessor at the desirable operating frequency, wherein the optimal voltage is based upon characteristics of the specific individual instance of a microprocessor; and

    wherein the information comprises a plurality of pairs of voltage-frequency operating points for setting said specific individual instance of a microprocessor to a plurality of operating points each having a determined voltage for a desired frequency and is encoded external to the specific individual instance of a microprocessor; and

    operating the specific individual instance of a microprocessor at one of the plurality of pairs of voltage-frequency operating points corresponding to the desirable operating frequency.

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