Self power audit and control circuitry for microprocessor functional units
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United States of America Patent
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Aug 31, 2004
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N/A
app pub date -
Jul 17, 1996
filing date -
Jul 17, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method and apparatus for reducing power dissipation within a functional unit of a microprocessor includes a power sensing circuit for sensing power dissipation of the functional unit. A low power mode identifying circuit identifies when the measured power dissipation of the functional unit exceeds a predetermined amount or value. Upon such a condition, a low power mode circuit operates the functional unit in a low power mode thereby reducing its power dissipation. Operation of the functional unit in the low power mode continues until the power dissipation reaches a safe level. The functional unit internally determines power dissipation and selectively enters a low power mode to reduce power dissipation of the functional unit. Low power mode operation of the functional unit reduces power dissipation of the functional unit.
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