82801DB Datasheet, PDF (546/587 Pages) Intel Corporation – Intel 82801DB I/O Controller Hub 4 (ICH4)

Electrical Characteristics
Figure 17-19. G3 (Mechanical Off) to S0 Timings
Sy s tem
S ta te
H u b i n te rfa c e " C P U
R e se t C o m p l e t e "
m e ssa g e
ST PCLK#,
CPUSLP#
Frequenc y
S tr a p s
PC IRS T#
SUS_STA T#
PW RO K,
V RMPW RG D
Vcc
S LP_ S 3#
S LP_ S 4#
G3
G3
S5
S4
S3
S0
S0 state
T181
T184
T186
S tra p V a lu e s
No r ma l O p e r a tio n
T185
T178
T177
T176
T181
T183a
T183b
S LP_ S 5#
T183
SUSCLK
RS MRS T# ,
RS M _ PW RO K
V ccSus
T173
T182
Figure 17-20. S0 to S1 to S0 Timing
R unning
STATE
S0
STPCLK#
PCI Stop Grant
Cycle
CPUSLP#
Wake Event
S0 S1
T187
T188
S1
S1 S0
S0
T190
T189
546
Intel^® 82801DB ICH4 Datasheet