18540798. Multi-Processor Power Management Circuit (Apple Inc.)

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Multi-Processor Power Management Circuit

Organization Name

Apple Inc.

Inventor(s)

Doron Rajwan of Rishon LeZion IL

John H. Kelm of Belmont CA US

Michael Bekerman of Los Gatos CA US

Multi-Processor Power Management Circuit

This abstract first appeared for US patent application 18540798 titled 'Multi-Processor Power Management Circuit

Original Abstract Submitted

A system includes a power management processor that may be configured to monitor operation of one or more circuit blocks in the system, and to determine a particular performance state of a set of performance states for one or more power domains in the system based on the monitored operation. The system further includes a performance management circuit that may be configured to receive, from the power management processor, an indication of the particular performance state. The performance management circuit may further be configured to determine a transition path from a current performance state to the particular performance state that avoids illegal performance state transitions, and to cause a control circuit to transition to the particular performance state using the transition path.