ASEM CPU 1021/A, User Manual

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CPU 1021/A
User’s Guide
30 Asem S.p.A.
J24 - Connector floppy disk
PIN Signal PIN Signal
1 + 5V 2 INDEX
3 + 5V 4 DRIVESEL 1
5 + 5V 6 DISK CHANGE
7 NC 8 NC
9 NC 10 MOTOR 1
11 NC 12 DIRECTION
13 NC 14 STEP
15 GND 16 WRITE DATA
17 GND 18 ENABLE
19 GND 20 TRACK 0
21 GND 22 WRITE PROTECT
23 GND 24 READ DATA
25 GND 26 HEAD SELECT
J25 - Connector floppy disk solder side
PIN Signal PIN Signal
1 GND 2 RWC
3 GND 4 N/C
5 GND 6 N/C
7 GND 8 INDEX
9 GND 10 MOTOR 1
11 GND 12 DRIVESEL 2
13 GND 14 DRIVESEL 1
15 GND 16 MOTOR 2
17 GND 18 DIRECTION
19 GND 20 STEP
21 GND 22 WRITE DATA
23 GND 24 WRITE ENABLE
25 GND 26 TRACK 0
27 GND 28 WRITE PROTECT
29 GND 30 READ DATA
31 GND 32 HEAD SELECT
33 GND 34 DISK CHANGE