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10.4.3 Multiword DMA Write Timing
ATA/ATAPI-6 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