113
Diskette Drive Cable Connector Signals
Pin  Signal Name I/O Pin  Signal Name I/O
1  No Connection N/A 18  Direction SELECT O
2  Density Select O 19  Ground N/A
3  No Connection N/A 20  Step O
4  High Density Out I 21  Ground N/A
5  Ground N/A 22  Write Data O
6  No Connection N/A 23  Ground N/A
7  Ground N/A 24  Write GATE O
8  Index I 25  Ground N/A
9  Ground N/A 26  Track 0 I
10  No Connection N/A 27  Ground N/A
11  Ground N/A 28  Write Protect I
12  Drive Select 1 O 29  Ground N/A
13  Ground N/A 30  Read Data I
14  No Connection N/A 31  Ground N/A
15  Ground N/A 32  SIDE 1 SELECT O
16  Motor On O 33  Ground N/A
17  Ground N/A 34  Diskette Change I