Intel SU2300 AV80577UG0091ML Data Sheet

Product codes
AV80577UG0091ML
Page of 98
Datasheet
17
Low Power Features
2.4
Processor Power Status Indicator (PSI#) Signal
The PSI# signal is asserted when the processor is in a reduced power consumption 
state. PSI# can be used to improve light load efficiency of the voltage regulator, 
resulting in platform power savings and extended battery life. The algorithm that the 
processor uses for determining when to assert PSI# is different from the algorithm 
used in previous processors.