82801DB Datasheet, PDF (547/587 Pages) Intel Corporation – Intel 82801DB I/O Controller Hub 4 (ICH4)

Electrical Characteristics
Figure 17-21. S0 to S5 to S0 Timings
S0
S0
S3
S3 S4
S5
S TPCL K #
S to p G r a n t
C y c le
T 187
CPUS L P#
SUS_STA T#
P C IR S T #
S L P_ S 3 #
S L P_ S 4 #
S L P_ S 5 #
W ake Ev e nt
PW RO K ,
V RMPW RG D
Vcc
T188
T192
T1 9 3
T194
T 194a
T195
T196
T1 9 7
Figure 17-22. C0 to C2 to C0 Timings
S4 S3
S 3 /S 4/S 5
S0
S0
T184
T 198e
T 198d
T1 7 7
T178
T176
IC H 2 S 0 S Ti i
CPU I/F
Signals
Unlatched
STPCLK#
Break
Event
T204
Latched
Unlatched
T205
T206
Intel^® 82801DB ICH4 Datasheet
547