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ON/OFF#
PWRBTN
t1
-->EC
EC-->SB ON/OFFBTN# t2 t3
EC-->SB RSMRST#
SB-->EC SLP_S5#
D D
+1.8V
SB-->EC SLP_S4# t4
SB-->EC SLP_S3# t5
+2.5VSP /+3VS /+5VS /+1.5VSP
/+1.05V_VCCP /+0.9VSP
POK circuit
-->EC PWR_GD
EC-->NB +VDD_CORE(VCORE)
EC-->Power VGATE_INTEL(VRMPWRGD) t6
EC-->SB PM_POK(PWROK) t7
C C
H_PWRGOOD(VRMPWRGD AND PWROK)
Description Item Min Typical Max Note
User press power button
t1 --- --- --- User Define
User Press power bottun
to ICH PWRBTN# t2 --- --- --- HW delay--> 100K & 1uF
B B
ICH7-M internal
de-bounce t3 --- 16ms ---
SLP_S4# active to
SLP_S5# active t4 1 RTCCLK 2 RTCCLK RTCCLK = 32us
SLP_S3# active to
SLP_S4# active t5 1 RTCCLK 2 RTCCLK RTCCLK = 32us
SLP_S3# active to
VRMPWRGD inactive t6 0ms --- ---
SLP_S3# active to
PWROK inactive t7 0ms --- ---
A A
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