5 multiword dma write timing – Toshiba MK6017MAP User Manual
Page 37
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10.4.5 Multiword DMA Write Timing
ATA/ATAPI-5 SPECIFICATIONS
Transfer mode
MODE 0
MODE 1
MODE 2
Symbol Meaning Min.
Max.
Min.
Max.
Min.
Max.
t0
Cycle time
480
150
120
t
C
DMACK to DMARQ delay
---
---
---
t
D
-DIOW
16-bit
215 80
70
t
G
-DIOW data setup
100
30
20
t
H
-DIOW data hold
20
15
10
t
I
DMACK to -DIOW setup
0
0
0
t
J
-DIOW to DMACK hold
20
5
5
t
K
-DIOW negated pulse width
215
50
25
t
L
-DIOW to DMARQ delay
40
40
35
t
G
t
L
-DMACK
t
H
t
K
t
J
t
I
DMARQ
-DIOW
DD15
∼
DD0
t
O
t
D
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