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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