ASEM CPU 1021/A - J24 - Connector Floppy Disk; J25 - Connector Floppy Disk Solder Side

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