Fujitsu MHM2100AT ユーザーズマニュアル
5.6 Timing
C141-E104-02EN
5-119
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
DMA burst no sooner than t
RP
after DDMARDY- is negated.
2)
If the t
SR
timing is not satisfied, the device may receive zero, one or
two more data words from the host.
Figure 5.19 Device pausing an Ultra DMA data out burst
DMARQ
(device)
(device)
DMACK-
(host)
(host)
STOP
(host)
(host)
DDMARDY-
(device)
(device)
HSTROBE
(host)
(host)
DD(15:0)
(host)
(host)
t
RP
t
SR
t
RFS