Computer Systems Division Computer Hardware Service and Reference Manual
Table Of Contents
- Proprietary Notice
- Contents
- Preface
- Abbreviations
- Technical Information
- Utilities
- Option Installation
- Maintenance and Troubleshooting
- Disassembly and Reassembly
- Desktop -Illustrated Parts Breakdown
- MiniTower -Illustrated Parts Breakdown
- System Specifications
- Connector Pin Assignments
- System Resources
- Index
- FCC Statement
- Battery Replacement
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
3Ground 4Reserved
5Key 6FDEDIN
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)