Fujitsu MHW2040AC Computer Drive User Manual


 
5.6 Timing
5.6.3.7 Initiating an Ultra DMA data out burst
5.6.3.2 contains the values for the timings for each of the Ultra DMA Modes.
DMARQ
(device)
DMACK-
(host)
STOP
(host)
DDMARDY-
(device)
HSTROBE
(
host
)
DD(15:0)
(host)
DA0, DA1, DA2
CS0-
,
CS1-
t
UI
t
ACK
t
ENV
t
ZIORDY
t
UI
t
LI
t
ACK
t
AC
K
t
DVH
t
DVS
t
DZFS
Note:
The definitions for the STOP, DDMARDY- and HSTROBE signal lines are
not in effect until DMARQ and DMACK- are asserted.
Figure 5.16 Initiating an Ultra DMA data out burst
C141-E258 5-159