ATA/ATAPI (IDE) Standard Drive Cable

Connector

Pin

Signal

Pin

Signal

Pin

Signal

 

 

 

 

 

 

1

Reset

15

DD1

29

DMAK

2

Ground

16

DD14

30

Ground

3

DD7

17

DD0

31

INTRQ

4

DD8

18

DD15

32

IOCS16

 

 

 

 

 

 

5

DD6

19

Ground

33

DA1

6

DD9

20

(Key)

34

PDIAG (cable detect)

7

DD5

21

DMARQ

35

DA0

8

DD10

22

Ground

36

DA2

 

 

 

 

 

 

9

DD4

23

DIOW

37

CS1FX

10

DD11

24

Ground

38

CS3FX

11

DD3

25

DIOR

39

DASP

12

DD12

26

Ground

40

Ground

 

 

 

 

 

 

13

DD2

27

IORDY

 

 

14

DD13

28

CSEL

 

 

 

 

 

 

 

 

74 Appendix A Connector Pin Assignments