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5.6 Timing
C141-E221 5-161
5.6.3.9 Device pausing an Ultra DMA data out burst
5.6.3.2 contains the values for the timings for each of the Ultra DMA Modes.
Notes:
1) The device may negate DMARQ to request termination of the Ultra DMA
burst no sooner than t
RP
after DDMARDY- is negated.
2) After negating DDMARDY-, the device may receive zero, one two or three
more data words from the host.
Figure 5.18 Device pausing an Ultra DMA data out burst
DMARQ
(device)
DMACK-
(
host
)
STOP
(
host
)
DDMARDY-
(
device
)
HSTROBE
(host)
DD(15:0)
(
host
)
t
RP
t
RFS