VOLTAGE SCALING ARCHITECTURE ON SYSTEM-ON-CHIP PLATFORM
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United States of America Patent
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Issued Date -
Nov 21, 2013
app pub date -
May 18, 2012
filing date -
May 18, 2012
priority date (Note) -
Abandoned
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Abstract
The subject matter of this application is embodied in an apparatus that includes a data processor, and at least one hardware monitor to measure circuit delays associated with the data processor and a power supply to provide power to the data processor. The apparatus also includes a voltage regulator to regulate a voltage level provided by the power supply, and a look-up table having target voltage values and target circuit delay values each corresponding to one or more conditions. The apparatus further includes a controller to control the voltage regulator. The controller at various time points controls the voltage regulator based on target voltage values obtained from the look-up table. In between the time points, the controller controls the voltage regulator based on differences between target circuit delay values and measured circuit delay values.
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