Diskette Drive Connector - NEC POWERMATE PROFESSIONAL - SERVICE MANUAL 05-1997 Service Manual

A-8 Connector Pin Assignments

Diskette Drive Connector

Table A-12 provides pin assignments for the system board diskette drive connector.
Pin
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
- = Active low signal.
Table A-12 Diskette Drive Pin Assignments
Signal Name
Ground
Ground
Key
Ground
Ground
Ground
Ground
Ground
MSEN1
Ground
Ground
Ground
Ground
MSEN0
Ground
Ground
Ground
Pin Signal Name
2 DENSEL
4 Reserved
6 FDEDIN
8 Index-
10 Motor Enable A-
12 Drive Select B-
14 Drive Select A-
16 Motor Enable B-
18 DIR-
20 STEP-
22 Write Data-
24 Write Enable-
26 Track 00-
28 Write Protect-
30 Read Data-
32 Side 1 Select-
34 Diskette
Change-