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Pin
Signal
18
GND
19
/ACK
20
GND
21
BUSY
22
GND
23
PE
24
GND
25
SEL
26
NC
The pinout of this connector, when configured as a floppy disk interface, is
outlined in the following table:
Floppy disk interface
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
I/O
-
I
-
I
-
I
-
I
-
Floppy disk drive signal
Not connected
Drive Density Select 0
Index
Head Select
Track 0
Direction
Write Protect
Step
Read Data
Ground
Disk Change
Ground
Not connected
Ground
Not connected
Ground
Not connected
Ground
Drive Select 1
Pinouts of internal connectors
Description
Ground.
Acknowledge.
Ground.
Busy.
Ground.
Paper end.
Ground.
Select.
Not connected.
183
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