IBM 2274 Personal Computer User Manual


 
130 IBM Desktop System HMM
IDE Cable Connector Signals
Pin
Signal
Name
I/O Pin
Signal
Name
I/O
1 Host Reset O 21 No
Connection
2 Ground 22 Ground
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
8Host Data
10
I/O 28 No
Connection
9 Host Data 4 I/O 29 No
Connection
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
13 Host Data 2 I/O 33 Host A1 O
14 Host Data
13
I/O 34 No
Connection
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 ba I
20 No
Connection
40 Ground Power