METHOD AND APPARATUS FOR ON-DEMAND POWER MANAGEMENT
First Claim
1. A method, comprising:
- monitoring a processing demand in a processing system operating at a first one or more voltages and a first one or more clock frequencies phase-locked to a reference frequency;
generating a second one or more clock frequencies in response to the processing demand, the second one or more clock frequencies phase-locked to the reference frequency and phase-matched to the first one or more clock frequencies; and
switching from the first one or more clock frequencies to the second one or more clock frequencies without halting the processing system.
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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.
63 Citations
13 Claims
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1. A method, comprising:
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monitoring a processing demand in a processing system operating at a first one or more voltages and a first one or more clock frequencies phase-locked to a reference frequency; generating a second one or more clock frequencies in response to the processing demand, the second one or more clock frequencies phase-locked to the reference frequency and phase-matched to the first one or more clock frequencies; and switching from the first one or more clock frequencies to the second one or more clock frequencies without halting the processing system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification