Fujitsu MHM2100AT Manual Do Utilizador
Interface
5-110
C141-E104-02EN
5.6.3 Transfer of Ultra DMA data
Figures 5.12 to 5.21 define the timings concerning every phase for the Ultra DMA
Burst.
Burst.
Table 5.18 includes the timing for each Ultra DMA mode.
5.6.3.1 Starting of Ultra DMA data In Burst
The timing for each Ultra DMA mode is included in 5.6.3.2.
Note :
The definitions of STOP, HDMARDY- and DSTROBE signals are
valid before the assertion of DMACK signal.
valid before the assertion of DMACK signal.
Figure 5.12 Starting of Ultra DMA data In Burst transfer
DMARQ
(device)
(device)
DMACK-
(host)
(host)
STOP
(host)
(host)
HDMARDY-
(host)
(host)
DSTROBE
(device)
(device)
DD (15:0)
DA0,DA1,DA2,
CS0-,CS1-
CS0-,CS1-
t
UI
t
ENV
t
FS
t
ENV
t
ZAD
t
FS
t
ZAD
t
DVH
t
VDS
t
AZ
t
ZIORDY
t
ACK
t
ACK
t
ACK