Software resumption After wake-up, control starts from the processor's reset vector. Bus clocks are stopped some buses might lose power. Power consumption Less consumption than in state S1 and greater than in S3. State S2 has the following characteristics: System power state S2 is similar to S1 except that the CPU context and contents of the system cache are lost because the processor loses power.
System hardware context All context retained and maintained by hardware. Hardware latency Typically no more than two seconds.
Software resumption Control restarts where it left off. Processor clock is off and bus clocks are stopped. Power consumption Less consumption than in S0 (sleep off) and greater than in the other sleep states. System power state S1 is a sleeping state with the following characteristics:
This will tell you what sleep states are supported:.
