Method and apparatus for on-demand power management
First Claim
1. An apparatus, comprising:
- a system controller to monitor an application processing demand on a processing system and to determine one or more clock frequencies and one or more voltages at which the processing system operates;
a power distribution manager coupled with the system controller to provide one or more operating voltages to the processing system and to switch between a first one or more voltages and a second one or more voltages without halting the processing system; and
a clock domain manager coupled with the system controller to provide one or more clock signals to the processing system and to switch between a first one or more clock frequencies and a second one or more clock frequencies without halting the processing system, whereinthe first one or more clock frequencies and the second one or more clock frequencies are phase-locked to a common reference frequency, and whereinthe second one or more clock frequencies are phase-matched to the first one or more clock frequencies.
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Abstract
An apparatus for on-demand power management including a system controller, a clock domain manager coupled to the system controller and a power distribution manager coupled to the system controller. The system controller monitors a processing demand in a processing system. The clock domain manager provides one or more clock frequencies and, in response to the processing demand, switches between a first set of clock frequencies and a second set of clock frequencies without halting the processing system. The power distribution manager provides one or more operating voltages and, in response to the processing demand, switches between a first set of voltages and a second set of voltages without halting the processing system.
54 Citations
8 Claims
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1. An apparatus, comprising:
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a system controller to monitor an application processing demand on a processing system and to determine one or more clock frequencies and one or more voltages at which the processing system operates; a power distribution manager coupled with the system controller to provide one or more operating voltages to the processing system and to switch between a first one or more voltages and a second one or more voltages without halting the processing system; and a clock domain manager coupled with the system controller to provide one or more clock signals to the processing system and to switch between a first one or more clock frequencies and a second one or more clock frequencies without halting the processing system, wherein the first one or more clock frequencies and the second one or more clock frequencies are phase-locked to a common reference frequency, and wherein the second one or more clock frequencies are phase-matched to the first one or more clock frequencies. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification