| 摘要 |
A method and system for tracking and selecting optimal power conserving modes of a PCD includes detecting enablement or disablement of a reduced power mode and detecting one of a new and a change in a latency restriction. Next, a low power mode which has a minimum entry and exit latency may be identified. Then, it may be determined if a lowest latency restriction is less than the minimum entry and exit latency. A function pointer may be adjusted based on the output of the determining step. The function pointer may reference a halt state and a reduced power state for the PCD. Then, conditions favorable for at least one of an idle state and a reduced power mode of the PCD may be assessed. If conditions are favorable for an idle state or a reduced power mode for the PCD, then status of the function pointer may be read.
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