Low Power Features
2.3
Processor Power Status Indicator (PSI#) Signal
The Celeron M processor incorporates the PSI# signal that is asserted when the
processor is in a low power (Deep Sleep) state. This signal is asserted upon Deep Sleep
entry and deasserted upon exit. PSI# can be used to improve the light load efficiency
of the voltage regulator, resulting in platform power savings and extended battery life.
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Datasheet