2 multiword data transfer – FUJITSU MHW2060AC User Manual
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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-
t
M
DMARQ
t
I
DMACK-
t
D
DIOR-/DIOW-
t
E
Read
DD(15:0)
t
G
t
F
Write
DD(15:0)
t
G
t
H
Symbol Timing
parameter Min.
Max.
Unit
t
D
Pulse width of DIOR-/DIOW-
70
—
ns
t
E
Data Access time for DIOR-
—
50
ns
t
F
Data hold time for DIOR-
5
—
ns
t
G
Data setup time for DIOR-/DIOW-
20
—
ns
t
H
Data hold time for DIOW-
10
—
ns
t
I
DMACK setup time for DIOR-/DIOW-
0
—
ns
t
CS (1:0) Available time for DIOR-/DIOW-
25
—
ns
Figure 5.10 Multiword DMA data transfer timing (mode 2)
5-150
C141-E258
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