Universal Serial Bus Connectors; Diskette Drive Connector; Diskette Drive Pin Assignments - NEC POWERMATE PROFESSIONAL 9000 Service Manual

Universal Serial Bus Connectors

The pin assignments for the universal serial bus (USB) connectors are provided in the
following table.
Table A-9 Universal Serial Bus Connector Pin Assignments
Pin
1
2
3
4

Diskette Drive Connector

The following table lists pin assignments for the diskette drive connector.
Pin
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
Signal
+5V (cable power)
USBP0# [USBP1#]
USBP0 [USBP1]
Ground (cable ground)
Table A-10 Diskette Drive Pin Assignments
Signal Name
Ground
Ground
Key
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Connector Pin Assignments
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 Gate-
26 Track 00-
28 Write Protect-
30 Read Data-
32 Side 1 Select-
34 Diskette
A-9