3 floppy drive – Advantech HMI-640S User Manual
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HMI-640S User's Manual
4.9.3 Floppy drive
Users can attach up to two floppy disk drives to the CPC-2245N via
a SODIMM socket. The CPC-2245N supports any combination of
5.25" (360 KB / 1.2 MB) and/or 3.5" (720 KB / 1.44/2.88 MB) drives.
The following table lists the pin assignments for the floppy disk
connector:
Table 4-9: Floppy drive connector
FDD connctr. CN3
FDD connector
CN3
Pin Signal
Pin Signal Pin
Signal
Pin Signal
1
GND
9
GND
2
High density
141 AUTOFD
3
GND
9
GND
4
N/C
5
GND
10
GND
6
N/C
7
GND
10
GND
8
Index
69
PD0
9
GND
11
GND
10
Motor enable A 66
PD6
11
GND
11
GND
12
Driver select B 64
ACK
13
GND
12
GND
14
Driver select A
143 PD7
15
GND
12
GND
16
Motor enable B 137 BUSY
17
GND
13
GND
18
Direction
71
INIT
19
GND
13
GND
20
Step pulse
72
SLCTIN
21
GND
14
GND
22
Write data
65
PE
23
GND
14
GND
24
Write enable
144 SLCT
25
GND
15
GND
26
Track 0
140 PD1
27
GND
15
GND
28
Write protect
68
PD2
29
GND
16
GND
30
Read data
139 PD3
31
GND
16
GND
32
Select head
142 ERR
33
GND
9
GND
34
Disk change
67
PD4