Fujitsu MHT2030AT Manual/User Guide - Page 216
DMARQ, device, DMACK, DDMARDY, HSTROBE, DD15:0, after DDMARDY- is negated.
UPC - 683728090579
View all Fujitsu MHT2030AT manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 216 highlights
Interface 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. DMARQ tRP (device) DMACK(host) STOP (host) DDMARDY(device) tRFS HSTROBE (host) DD(15:0) (host) Notes: 1) The device may negate DMARQ to request termination of the Ultra DMA burst no sooner than tRP 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 5-142 C141-E192-02EN
Interface
5-142
C141-E192-02EN
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