Dynamic control of reduced voltage state of graphics controller component of memory controller

摘要

A method includes detecting a trigger condition, and in response to detecting the trigger condition, reducing a voltage applied to a graphics controller component of a memory controller. The reduction in voltage may cause the voltage to be reduced below a voltage level required to maintain context information in the graphics controller component.

主权项

1. A method comprising:
detecting a combination of trigger conditions; in response to detecting the trigger condition, storing in an external memory context information; after said storing, disabling clock signals for a graphics controller component; after said storing, reducing a voltage applied to a graphics controller component of a memory controller, said reducing causing the voltage to be reduced below a voltage level required to maintain said context information in said graphics controller component; after said reducing, detecting issuance of a command for said graphics controller component; and in response to detecting issuance of the command, increasing the voltage applied to the graphics controller component, said increasing causing the voltage to be increased to a voltage level required to support full operation of the graphics controller component.