GL811USB – USB 2.0 to ATA / ATAPI Bridge Controller
6.4.3.4 Host pausing an Ultra DMA data-in burst
DMARQ
(device)
DMACK_
(host)
STOP
(host)
HDMARDY_
(host)
DSTROBE
(device)
IODD(15:0)
(device)
tRP
tSR
tRFS
Notes:
1.The host may assert STOP to request termination of the Ultra DMA burst no sooner than tRP
after HDMARDY_ is negated.
2.If the tSR timing is not satisfied, the host may receive zero, one, or two more data words from
the device.
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