360050398

10.4.3 Multiword DMA Write Timing

DMARQ

tOtL

-DMACK

tI

tD

tK

tJ

-DIOW

DD15∼DD0

tG tH

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

tC

DMACK to DMARQ delay

 

---

 

---

---

tD

-DIOW 16-bit

215

 

80

 

70

tG

-DIOW data setup

100

 

30

 

20

tH

-DIOW data hold

20

 

15

 

10

tI

DMACK to -DIOW setup

0

 

0

 

0

tJ

-DIOW to DMACK hold

20

 

5

 

5

tK

-DIOW negated pulse width

215

 

50

 

25

tL

-DIOW to DMARQ delay

 

40

 

40

35

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