Fujitsu MHN2150AT Manual/User Guide - Page 194
DMARQ, device, DMACK, HDMARDY, DSTROBE, DD15:0, After negating HDMARDY-, the host may receive zero
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Interface 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. DMARQ (device) DMACK- (host) STOP (host) HDMARDY(host) DSTROBE (device) DD(15:0) (device) tRP 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) After negating HDMARDY-, the host may receive zero, one, two or three more data words from the device. Figure 5.13 Host pausing an Ultra DMA data in burst 5-118 C141-E120-02EN
Interface
5-118
C141-E120-02EN
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)
After negating HDMARDY-, the host may receive zero, one, two or three
more data words from the device.
Figure 5.13
Host pausing an Ultra DMA data in burst
t
RP
t
RFS
DMARQ
(device)
DMACK-
(host)
STOP
(host)
HDMARDY-
(host)
DSTROBE
(device)
DD(15:0)
(device)