CP302
Functional Description and Configuration
ID 21112, Rev. 05
Page 2 - 21
®
PEP Modular Computers GmbH
2.6.8
Floppy Drive Interface
The onboard floppy disk controller supports either 5.25 inch or 3.5 inch (1.44 or 2.88 MB)
floppy disks. A 20-pin male connector provides the signals for an optional floppy-drive
that can be installed by means of a special adapter.
2.6.8.1
Floppy Disk Connector CON13
Table 2-10: Floppy Disk Connector CON13 Pinout
Pin
Signal
Function
In/Out
1-4
GND
Ground signal
--
5
DSKCH
Disk change
In
6
HDSEL
Head select
Out
7
RDATA
Read data
In
8
WP
Write protect
In
9
TRK0
Track 0 signal
In
10
WGAT
Write enable
Out
11
WDAT
Write data
Out
12
STEP
Step pulse
Out
13
DIR
Step direction
Out
14
MTR1
Motor 1 enable
Out
15
DS0
Driver select 0
Out
16
DS1
Driver select 1
Out
17
MTR0
Motor 0 enable
Out
18
INDEX
Index pulse
In
19
DRVDEN1
Drive and media select
Out
20
DRVDEN0
Drive and media select
Out
$
$
Note:
The adapter must be mounted directly onto the floppy drive.
There is therefore no necessity for an intermediate cable
between the floppy drive and the adapter
.
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