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US 8,510,585 B2Granted
Dynamic control of reduced voltage state of graphics controller component of memory controller
AssigneeIntel Corporation
InventorsEric C. Samson, Aditya Navale
Life of this patent
Estimating the term…
Abstract
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.
Claims22
A method comprising:
- in response to detecting one or more trigger conditions, storing context information into a memory separate from a graphics controller;
- after said storing, reducing a frequency of at least one clock signal provided to the graphics controller;
- after said storing, reducing a voltage applied to the graphics controller, the reducing causing the voltage to be reduced below a voltage level required to store said context information in a memory of the graphics controller;
- after said reducing, detecting issuance of a command to the graphics controller;
- and
- in response to detecting issuance of the command, increasing the voltage applied to the graphics controller.
3 more elements
An apparatus comprising:
- a graphics controller component and
- a power management controller to:
- detect one or more trigger conditions;
- in response to detection of one or more the trigger conditions, store context information of the graphics controller component into a memory external to the graphics controller component;
- after the context information is stored, reduce frequency of at least one clock signal provided to the graphics controller component;
- after the context information is stored, reduce a voltage provided to the graphics controller component, wherein reduction of the voltage to cause a voltage reduction below a voltage level to maintain storage of the context information in a memory in the graphics controller component;
- after the reduction, detect issuance of a command to the graphics controller component;
- and
- in response to detection of issuance of the command, increase the voltage applied to the graphics controller component.
6 more elements
A system comprising:
- a display;
- a telephone transceiver;
- at least one processor communicatively coupled to the telephone transceiver;
- a graphics controller component communicatively coupled to the display and the at least one processor;
- a power management controller to:
- detect one or more trigger conditions;
- in response to detection of one or more the trigger conditions, store context information of the graphics controller component in a memory external to the graphics controller component;
- after the context information is stored, reduce frequency of at least one clock signal provided to the graphics controller component;
- after the context information is stored, reduce a voltage provided to the graphics controller component, wherein reduction of the voltage to cause a voltage reduction below a voltage level to maintain storage of the context information in the graphics controller component;
- after the reduction, detect issuance of a command to the graphics controller component;
- and
- in response to detection of issuance of the command, increase the voltage applied to the graphics controller component.
9 more elements
Dependencies are inferred from the claim text.