VCC adaptive dynamically variable frequency clock system for high performance low power microprocessors
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United States of America Patent
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Jul 13, 2004
Grant Date -
Jan 29, 2004
app pub date -
Jul 26, 2002
filing date -
Jul 26, 2002
priority date (Note) -
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Abstract
A method and an apparatus for dynamically varying a clock frequency in a processor to adapt to VCC voltage changes. The method of one embodiment includes sampling a supply voltage at a plurality of locations. The values of said supply voltage are communicated to a clock generator. A clock frequency of a clock signal generated from the clock generator is adjusted in response to an evaluation of the sampled values of the supply voltage.
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