Aaeon SBC-556/L, Руководство пользователя

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36 SBC-556/L User Manual
If you are connecting a 3½” floppy drive, you may have trouble
determining which pin is pin number 1. Look for a number printed
on the circuit board indicating pin number 1. Also, the connector
on the floppy drive connector may have a slot. When the slot is
up, pin number 1 should be on the right. Check the documentation
that came with the drive for more informa-tion.
If you desire, connect the B: drive to the connectors in the middle
of the cable as described above.
Pin assignments
The following table lists the pin assignments for the CN7 connec-
tor:
FLOPPY drive connector (CN7)
Pin Signal Pin Signal
1~33 (odd) GND 2 High density
4, 6 Unused 8 Index
10 Motor enable A 12 Driver select B
14 Driver select A 16 Motor enable B
18 Direction 20 Step pulse
22 Write data 24 Write enable
26 Track 0 28 Write protect
30 Read data 32 Select head
34 Disk change