Floppy/Led Connector J4; Table 4-3. Floppy/Led Connector - Motorola MVME2603-1121A Installation And Use Manual

Floppy/LED Connector J4

A 50-pin high-density connector (J4 on the base board) supplies the
interface between the base board and an optional external floppy
disk drive. In addition to the the disk drive control signals, a set of
16 lines is available to drive an external LED array. The pin
assignments are listed in the following table.

Table 4-3. Floppy/LED Connector

1 +5VF
3 LEDDISP0
5 LEDDISP2
7 LEDDISP4
9 LEDDISP6
11 LEDDISP8
13 LEDDISP10
15 LEDDISP12
17 LEDDISP14
19 LEDBLNK
21 GND
23 GND
25 GND
27 GND
29 GND
31 GND
33 GND
35 GND
37 GND
39 GND
41 GND
43 GND
45 GND
47 GND
49 GND
Connector Pin Assignments
+5VF 2
LEDDISP1 4
LEDDISP3 6
LEDDISP5 8
LEDDISP7 10
LEDDISP9 12
LEDDISP11 14
LEDDISP13 16
LEDDISP15 18
F_DENSEL 20
F_MSEN0 22
∗
F_INDEX 24
∗
F_MTR0 26
∗
F_DR1 28
∗
F_DR0 30
∗
F_MTR1 32
∗
F_DIR 34
∗
F_STEP 36
∗
F_WDATA 38
∗
F_WGATE 40
∗
F_TRK0 42
∗
F_WP 44
∗
F_RDATA 46
∗
F_HDSEL 48
∗
F_DSKCHG 50
4
4-7