US 2013/0293288 A1Published application

Chip control method and device

OwnerJianfeng Yu, Chunlei Suninventors

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Abstract

A chip control method, The method includes: acquiring a required frequency of the chip; detecting a current temperature of the chip, and determining a temperature range [Tm, Tm+1] to which the current temperature belongs, where T indicates a temperature, and m is a natural number; determining, through comparison according to ascending order of sorting the n voltage ranks, whether a frequency at which the chip can work at each temperature point of an analytical temperature range in an ith voltage rank is higher than the required frequency, where the analytical temperature range has a margin δ relative to the temperature range [Tm, Tm+1], δ≧0, and i=0, 1, . . . , n−1; and if yes, using the ith voltage rank as a working voltage of the chip, and using the required frequency as a working frequency of the chip.

Claims18

Dependent claims

A chip control method, wherein the chip provides n voltage ranks, n is a natural number larger than or equal to 2, a working temperature of the chip is divided into at least two temperature ranges, and the method comprises:

acquiring a required frequency of the chip;
detecting a current temperature of the chip, and determining a temperature range [Tm, Tm+1] to which the current temperature belongs, wherein T indicates a temperature, and m is a natural number;
determining, through comparison according to ascending order of sorting the n voltage ranks, whether a frequency at which the chip can work at each temperature point of an analytical temperature range in an ith voltage rank is higher than the required frequency, wherein the analytical temperature range has a margin δ relative to the temperature range [Tm, Tm+1], δ≧0, and i=0, 1, . . . , n−1;
and
if yes, using the ith voltage rank as a working voltage of the chip, and using the required frequency as a working frequency of the chip.

2 more elements

A chip control device, wherein a chip that is controlled by the chip control device provides n voltage ranks, n is a natural number larger than or equal to 2, a working temperature of the chip is divided into at least two temperature ranges, and the chip control device comprises:

an acquiring unit, configured to acquire a required frequency of the chip;
a detecting unit, configured to detect a current temperature of the chip, and determine a temperature range [Tm, Tm+1] to which the current temperature belongs, wherein T indicates a temperature, and m is a natural number;
a comparing unit, configured to determine, through comparison according to ascending order of sorting the n voltage ranks, whether a frequency at which the chip can work at each temperature point of an analytical temperature range in an ith voltage rank is higher than the required frequency, wherein the analytical temperature range has a margin δ relative to the temperature range [Tm, Tm+1], δ≧0, and i=0, 1, . . . , n−1;
and
an updating unit, configured to use the ith voltage rank as a working voltage of the chip and use the required frequency as a working frequency of the chip when a comparison result of the comparing unit is yes.

2 more elements

Dependencies are inferred from the claim text.