Chapter 1 Hardware Installation 31
Step 7 Attach Floppy Drive, Continued

Floppy Connector Pinout

Pin Use Pin Use
1GND 2DENSE1
3GND 4N/C
5GND 6DRATE0
7GND 8-INDEX
9GND 10 -MOTOR0
11 GND 12 -FDSEL1
13 GND 14 -FDSEL0
15 GND 16 -MOTOR1
17 GND 18 DIR
19 GND 20 -
21 GND 22 -WDATA
23 GND 24 -WGATE
25 GND 26 -TRK0
27 GND 28 -WRPROT
29 GND 30 -RDATA
31 GND 32 HDSEL
33 GND 34 DSKCHNG

Twist in Floppy Cable

Floppy B to A Floppy B to A Floppy B to A Floppy B to A
10 to 16 12 to 14 14 to 12 16 to 10
11 to 15 13 to 13 15 to 11