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3
Connection
This chapter describes how to connect peripherals, switches and
indicators to the ROCKY-558EV board.
3.1 Floppy Disk Drive Connector
ROCKY-558EV board equipped with a 34-pin daisy-chain driver
connector cable.
• J7 : FDC CONNECTOR
PIN NO.
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
DESCRIPTION
PIN NO.
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
DESCRIPTION
2
REDUCE WRITE
4
N/C
6
N/C
8
INDEX#
10
MOTOR ENABLE A#
12
DRIVE SELECT B#
14
DRIVE SELECT A#
16
MOTOR ENABLE B#
18
DIRECTION#
20
STEP#
22
WRITE DATA#
24
WRITE GATE#
26
TRACK 0#
28
WRITE PROTECT#
30
READ DATA#
32
SIDE 1 SELECT#
34
DISK CHANGE#
13
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