Interface
5.6.2 Multiword data transfer
Figure 5.10 shows the multiword DMA data transfer timing between the device
and the host system.
CS0-/CS1-
DMARQ
DMACK-
DIOR-/DIOW-
Read
DD(15:0)
Write
DD(15:0)
Symbol
t
Pulse width of DIOR-/DIOW-
D
t
Data Access time for DIOR-
E
t
Data hold time for DIOR-
F
t
Data setup time for DIOR-/DIOW-
G
t
Data hold time for DIOW-
H
t
DMACK setup time for DIOR-/DIOW-
I
t
CS (1:0) Available time for DIOR-/DIOW-
Figure 5.10 Multiword DMA data transfer timing (mode 2)
5-150
t
M
t
I
t
E
Timing parameter
t
D
t
t
G
F
t
t
G
H
Min.
70
—
5
20
10
0
25
Max.
Unit
—
ns
50
ns
—
ns
—
ns
—
ns
—
ns
—
ns
C141-E250