60
Floppy Disk Interface
The floppy disk interface is a coded 34-pin, 2-row male connector. Two (3
1/2
or
5
1/4
) floppy disk drives can be connected via a 34-wire flat cable. The odd pins
connect the shielded wires to GND. Signals with # symbol are low active.
2
1
Floppy
Pin
Signal
I/O
Function
2
HDS#
O
High Density Select
4
N.C.
-
6
N.C.
-
8
INDEX#
I
Index Hole
10
MO1#
O
Motor 1 On
12
DS2#
O
Drive 2 Select
14
DS1#
O
Drive 1 Select
16
MO2#
O
Motor 2 On
18
DIRC#
O
Direction
20
STEP#
O
Step Impulse
22
WD#
O
Write Data
24
WE#
O
Write Enable
26
TRK0#
I
Track 0
28
WP#
I
Write Protection
30
RDD#
I
Read Data
32
HS#
O
Head Select
34
DISKCHG#
I
Disk Change
Table 18, Floppy Disk Interface Pin Assignment
Figure 25,Floppy Disk Interface
4.4
Summary of Contents for PCM-4330
Page 1: ...PCM 4330 PC 104 486 CPU Module with Flat Panel CRT Interface ...
Page 2: ......
Page 50: ...50 ...
Page 66: ...66 ...
Page 88: ...88 ...
Page 126: ...126 PC 104 Module CPU Card PC 104 Mounting Support Female Male PC 104 Module Mounting Diagram ...
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