114
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