B-8 Connector Pin Assignments
Diskette Drive Interface Connector
The following table provides the pin assignments for the diskette drive interface
connector.
Diskette Drive Connector Pin Assignments
Pin
Description
Pin
Description
1
Ground
2
DENSEL
3
Ground
4
Reserved
5
Key
6
FDEDIN
7
Ground
8
FDINDX# (Index)
9
Ground
10
FDM00# (Motor enable A)
11
Ground
12
No connect
13
Ground
14
FDDS0# (Drive select A)
15
Ground
16
No connect
17
No connect
18
FDDIR# (Stepper motor direction)
19
Ground
20
FDSTEP# (Step pulse)
21
Ground
22
FDWD# (Write data)
23
Ground
24
FDWE# (Write enable)
25
Ground
26
FDTRK0# (Track 0)
27
No connect
28
FDWPD# (Write protect)
29
Ground
30
FDRDATA# (Read data)
31
Ground
32
FDHEAD# (Side 1 select)
33
Ground
34
DSKCHG# (Diskette change)
Summary of Contents for DIRECTION SP B - SERVICE 1999
Page 23: ...2 Utilities BIOS Setup Utility Intel Processor Serial Number Control Utility ...
Page 67: ...4 Maintenance and Troubleshooting Maintenance Troubleshooting ...
Page 78: ...5 Disassembly and Reassembly Disassembly Illustrated Parts Breakdown ...
Page 118: ...C System Resources IRQ Settings System Resource Information Jumper Settings ...