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5-114 C141-E104-02EN
5.6.3.4 Host pausing an Ultra DMA data in burst
5.6.3.2 contains the values for the timings for each of the Ultra DMA Modes.
Notes:
1) The host may assert STOP to request termination of the Ultra DMA
burst no sooner than t
RP
after HDMARDY- is negated.
2) If the t
SR
timing is not satisfied, the host may receive zero, one or
two more data words from the device.
Figure 5.14 Host pausing an Ultra DMA data in burst
t
RP
t
SR
t
RFS
DMARQ
(device)
DMACK-
(host)
STOP
(host)
HDMARDY-
(host)
DSTROBE
(device)
DD(15:0)
(device)