Adaptive voltage control by accessing information stored within and specific to a microprocessor
First Claim
Patent Images
1. A method of operating a microprocessor comprising:
- determining, independent of a present operating condition of said microprocessor, a desirable operating frequency for the microprocessor;
accessing information stored within and specific to the microprocessor;
utilizing the information, computing an efficient voltage for operating the microprocessor at the desirable operating frequency; and
operating the microprocessor at the efficient voltage.
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Abstract
Adaptive voltage control. In accordance with a first embodiment of the present invention, a desirable operating frequency for the microprocessor is determined. Information stored within and specific to the microprocessor is accessed. The information can comprise coefficients of a quadratic approximation of a frequency-voltage characteristic of the microprocessor. An efficient voltage for operating the microprocessor at said desirable operating frequency is computed. The microprocessor is operated at the efficient voltage.
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Citations
40 Claims
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1. A method of operating a microprocessor comprising:
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determining, independent of a present operating condition of said microprocessor, a desirable operating frequency for the microprocessor; accessing information stored within and specific to the microprocessor; utilizing the information, computing an efficient voltage for operating the microprocessor at the desirable operating frequency; and operating the microprocessor at the efficient voltage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 25, 40)
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16. A computer comprising:
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a microprocessor integrated circuit; a voltage supply for furnishing a selectable voltage to the microprocessor integrated circuit; a memory space coupled to the microprocessor integrated circuit comprising instructions to implement a method of operating the microprocessor integrated circuit at an efficient voltage, the method comprising; determining, independent of a present operating condition of said microprocessor, a desirable operating frequency for the microprocessor integrated circuit; accessing information specific to the microprocessor integrated circuit; utilizing the information, computing an efficient voltage for operating the microprocessor integrated circuit at the desirable operating frequency; commanding the voltage supply to furnish the efficient voltage to the microprocessor integrated circuit; and operating the microprocessor integrated circuit at the efficient voltage. - View Dependent Claims (17, 18)
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19. An electronic device comprising:
a microprocessor comprising information stored thereon of a quadratic approximation of a voltage-frequency relationship of the microprocessor, wherein the information is specific to the microprocessor and used to select an efficient voltage to be applied to the microprocessor based on a desired frequency of operation of the microprocessor. - View Dependent Claims (20, 21, 22, 23, 24)
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26. A method of operating a microprocessor comprising:
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determining, independent of a present operating condition of said microprocessor, a desirable operating frequency for the microprocessor; accessing information representing measurements of the microprocessor, wherein the information is encoded within the microprocessor; utilizing the information, determining an efficient voltage for operating the microprocessor at the desirable operating frequency; and operating the microprocessor at the efficient voltage. - View Dependent Claims (27, 28, 29, 30, 31, 32)
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33. A microprocessor comprising:
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means for determining, independent of a present operating condition of said microprocessor, a desirable operating frequency for the microprocessor; means for accessing information representing measurements of the microprocessor, wherein the information is encoded within the microprocessor; means for determining an efficient voltage for operating the microprocessor at the desirable operating frequency utilizing the information; and means for operating the microprocessor at the efficient voltage. - View Dependent Claims (34, 35, 36, 37, 38, 39)
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Specification