4 single word dma read timing – Toshiba MK6017MAP User Manual
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10.4.4 Single Word DMA Read Timing
ATA-2 SPECIFICATION
Transfer mode
MODE 0
MODE 1
MODE 2
Symbol
Meaning
Min. Max.
Min. Max.
Min. Max.
t0
Cycle time
960
480
240
t
C
DMACK to DMARQ delay
200
100
80
t
D
-DIOR
16-bit
480 240 120
t
E
-DIOR data access
250
150
60
t
F
-DIOR data hold
5
5
5
t
I
DMACK to -DIOR setup
0
0
0
t
J
-DIOR to DMACK hold
0
0
0
t
S
-DIOR
setup
t
D
-t
E
t
D
-t
E
t
D
-t
E
t
C
-DMACK
t
S
t
F
t
J
t
I
DMARQ
-DIOR
DD15
∼
DD0
t
O
t
D
t
E