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3.9 Floppy Disk Drive Connector
The HS-7238 uses a standard 34-pin header connector, FD1, for
floppy disk drive connection. A total of two FDD drives may be
connected to FD1 at any given time.
FD1: FDD Connector
PIN Description PIN Description
1 GND 2 DRVDEN0
3 GND 4 N/C
5 GND 6 DRVDEN1
7 GND 8 INDEX#
9 GND 10 MTRA#
11 GND 12 DSB#
13 GND 14 DSA#
15 GND 16 MTRB#
17 GND 18 DIR#
19 GND 20 STEP#
21 GND 22 WDATA#
23 GND 24 WGATE#
25 GND 26 TRAK00#
27 GND 28 WRTPRT#
29
N/C
30
RDATA#
31 GND 32 HDSEL#
33 N/C 34 DSKCHG#
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
DRVDEN0
N/C
DRVDEN1
INDEX#
MTR0#
DS1#
DS0#
MTR1#
DIR#
STEP#
WDATA#
’
WGATE#
TRAK00#
WRTPRT#
PDATA#
1
2
34
33
GND
N/C
GND
N/C
HDSEL#
DSKCHG#