GL811USB – USB 2.0 to ATA / ATAPI Bridge Controller
6.4.3.7 Initiating an Ultra DMA data-out burst
DMARQ
(device)
DMACK_
(host)
STOP
(host)
tUI
tACK
tENV
DDMARDY_
(device)
tZIORDY
tENV
tLI
tUI
tACK
HSTROBE
(host)
IODD (15:0)
(host)
tDVS
tDVH
tACK
DA0, DA1,
DA2, CS0_,
CS1_
Notes:
The definitions for the DIOW_:STOP, DIOR_:HDMARDY_:HSTROBE and
IORDY:DDMARDY_:DSTROBE signal lines are not in effect until DMARQ and DMACK are
asserted.
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