IDE Cable Connector Signals

Pin

Signal Name

I/O

Pin

Signal Name

I/O

 

 

 

 

 

 

1

Host Reset

O

21

DMA Request

I

 

 

 

 

 

 

2

Ground

N/A

22

Ground

Power

 

 

 

 

 

 

3

Host Data 7

I/O

23

Host IOW

O

 

 

 

 

 

 

4

Host Data 8

I/O

24

Ground

Power

 

 

 

 

 

 

5

Host Data 6

I/O

25

Host IOR

O

 

 

 

 

 

 

6

Host Data 9

I/O

26

Ground

Power

 

 

 

 

 

 

7

Host Data 5

I/O

27

I/O Channel Ready

I

 

 

 

 

 

 

8

Host Data 10

I/O

28

No Connection

N/A

 

 

 

 

 

 

9

Host Data 4

I/O

29

DMA Acknowledge

O

 

 

 

 

 

 

10

Host Data 11

I/O

30

Ground

Power

 

 

 

 

 

 

11

Host Data 3

I/O

31

Host IRQ

I

 

 

 

 

 

 

12

Host Data 12

I/O

32

No Connection

N/A

 

 

 

 

 

 

13

Host Data 2

I/O

33

Host A1

O

 

 

 

 

 

 

14

Host Data 13

I/O

34

No Connection

N/A

 

 

 

 

 

 

15

Host Data 1

I/O

35

Host A0

O

 

 

 

 

 

 

16

Host Data 14

I/O

36

Host A2

O

 

 

 

 

 

 

17

Host Data 0

I/O

37

Host CS0

O

 

 

 

 

 

 

18

Host Data 15

I/O

38

Host CS1

O

 

 

 

 

 

 

19

Ground

Power

39

ACTIVE bar

I

 

 

 

 

 

 

20

No Connection

N/A

40

Ground

Power

 

 

 

 

 

 

139

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Image 141
IBM 2169 manual IDE Cable Connector Signals Pin Signal Name