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METHOD AND APPARATUS FOR DYNAMIC POWER MANAGEMENT CONTROL USING PARALLEL BUS MANAGEMENT PROTOCOLS

  • US 20090249090A1
  • Filed: 03/26/2009
  • Published: 10/01/2009
  • Est. Priority Date: 03/28/2008
  • Status: Abandoned Application
First Claim
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1. A computer-implemented method, comprising:

  • providing a first operating voltage and a first clock frequency to a peripheral device, operating in a first operating state, wherein the peripheral device is coupled to an input-output (I/O) controller in a processing system with a parallel bus;

    monitoring bus transactions on the parallel bus using a power manager, coupled to the parallel bus, to assess a current processing demand for the peripheral device; and

    dynamically adjusting at least one of the first operating voltage or the first clock frequency in response to the current processing demand.

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