82801DB Datasheet, PDF (542/587 Pages) Intel Corporation – Intel 82801DB I/O Controller Hub 4 (ICH4)

Electrical Characteristics
Figure 17-9. Ultra ATA Mode (Drive Initiating a Burst Read)
DMARQ
(drive)
DMACK# (host)
STOP
(host)
DMARDY#
(host)
STROBE
(drive)
DD[15:0]
t96
t91
t89
t98
t89
t99b
t97
t95
t94
t85
t86
DA[2:0], CS[1:0]
Figure 17-10. Ultra ATA Mode (Sustained Burst)
STROBE @ sender
Data @ sender
t82
t81
t85
t99f
t81
t85
t99f
t86
t86
t86
t99g
t99g
t99g
STROBE @ receiver
t84
t99e
Data @ receiver
t83
t99d
t84
t99e
t83
t99d
t84
t99e
542
Intel^® 82801DB ICH4 Datasheet