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US 2013/0173902 A1Published application
Split deep power down of i/o module
AssigneeIntel Corporation
InventorsInder M. Sodhi, Amjad M. Khan, Zeev Offen, Ryan D. Wells
Life of this patent
Estimating the term…
Abstract
I/O logic can be separated into critical and non-critical portions, with the non-critical portions being powered down during processor idle. The I/O logic is separated into gate logic and ungated logic, where the ungated logic continues to be powered during a processor deep sleep state, and the gated logic is powered off during the deep sleep state. A power control unit can trigger the shutting down of the I/O logic.
Claims21
A circuit comprising:
- input/output (I/O) logic on a processor to connect to a device external to the processor, the I/O logic separated into gated logic and ungated logic, the gated logic to be unpowered in low power mode, the ungated logic to be powered in low power mode;
- and
- a power manager coupled to the I/O logic to manage power to the I/O logic by gating a system voltage to the gated logic and passing the system voltage to the ungated logic in the low power mode.
A processor comprising:
- input/output (I/O) logic on a processor to connect to a device external to the processor, the I/O logic separated into gated logic and ungated logic, the gated logic to be unpowered in low power mode, the ungated logic to be powered in low power mode;
- a power manager coupled to the I/O logic to manage power to the I/O logic by gating a system voltage to the gated logic and passing the system voltage to the ungated logic in the low power mode;
- and
- a power control unit (PCU) coupled to the power manager to trigger the power manager to put the I/O logic in the low power mode.
1 more element
A system comprising:
- a processor including
- input/output (I/O) logic on a processor to connect to a device external to the processor, the I/O logic separated into gated logic and ungated logic, the gated logic to be unpowered in low power mode, the ungated logic to be powered in low power mode;
- and
- a power manager coupled to the I/O logic to manage power to the I/O logic by gating a system voltage to the gated logic and passing the system voltage to the ungated logic in the low power mode;
- and
- a hardware controller to manage a touchscreen interface device.
3 more elements
Dependencies are inferred from the claim text.