Methods and systems for power management in a data processing system

Methods and systems for power management in a data processing system

  • CN 101,573,677 A
  • Filed: 12/18/2007
  • Published: 11/04/2009
  • Est. Priority Date: 01/07/2007
  • Status: Active Application
First Claim
Patent Images

1. data handling system that is positioned on the monolithic semiconductor substrate that SOC (system on a chip) (SOC) is provided, described data handling system comprises:

  • General Porcess Unit;

    Graphics Processing Unit;

    At least one peripheral interface controller;

    At least one bus, described at least one bus are coupled to described General Porcess Unit, described Graphics Processing Unit and described at least one peripheral interface controller;

    Power controller, this power controller is coupled to described General Porcess Unit and described Graphics Processing Unit at least, described power controller is configured to turn-off power supply to described General Porcess Unit in response to first state of the instruction queue of described General Porcess Unit, and described power controller is configured to turn-off power supply to described Graphics Processing Unit in response to second state of the instruction queue of described Graphics Processing Unit, wherein, described first state and the described second state representation instruction queue do not have instruction or only are useful on incident in the future or the instruction of action, and wherein, described Graphics Processing Unit is turned off the power supply of himself when the image that is generated by described Graphics Processing Unit is shown by described data handling system.

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