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Chapter 3. Connection
This chapter describes how to connect peripherals, switches and
indicators to the ROCKY-3785EV/EVG board.
3.1 Floppy Disk Drive Connector
ROCKY-3785EV/EVG board equipped with a 34-pin daisy-chain
driver connector cable.
•
CN3 : FDC CONNECTOR
PIN NO. DESCRIPTION PIN NO.
DESCRIPTION
1 GROUND
2 REDUCE
WRITE
3 GROUND
4 N/C
5 GROUND
6 N/C
7 GROUND
8 INDEX#
9
GROUND
10
MOTOR ENABLE A#
11 GROUND
12 DRIVE
SELECT
B#
13 GROUND
14 DRIVE
SELECT
A#
15 GROUND
16 MOTOR
ENABLE
B#
17 GROUND
18 DIRECTION#
19 GROUND
20 STEP#
21 GROUND
22 WRITE
DATA#
23 GROUND
24 WRITE
GATE#
25 GROUND
26 TRACK
0#
27 GROUND
28 WRITE
PROTECT#
29 N/C
30 READ
DATA#
31 GROUND
32 SIDE
1
SELECT#
33 N/C
34 DISK
CHANGE#
1
2
33
34