307013-003 Datasheet, PDF (821/848 Pages) Intel Corporation – Intel I/O Controller Hub 7

Electrical Characteristics
Figure 23-11. Ultra ATA Mode (Pausing a DMA Burst)
t90
STOP (host)
DMARDY#
t99
STROBE
DATA
Figure 23-12. Ultra ATA Mode (Terminating a DMA Burst)
DMARQ
(drive)
t87
t88
DMACK#
(host)
STOP
t99c
(host)
DMARDY#
(drive)
t87
Strobe
(host)
DATA
(host)
t91
t99a
t91
t92 t93
CRC
Intel ^® ICH7 Family Datasheet
821