Power state coordination between devices sharing power-managed resources

摘要

Power state management is coordinated in an electronic system 10 having a primary device 12 that includes a resource 14 to be shared with one or more secondary devices 16 coupled with the primary device. A coordination agent 18 is coupled with the primary device and the one or more secondary devices to transmit a message indicating a potential change of operational state for the primary device to the one or more secondary devices and causes the primary device to transition to an operational state determined by responses received from the secondary devices.