ICOM-2S Manual
4-2
Manual MICOM-2S.Eb
I/O bus address switches are marked A3-A9. The following table lists switch label vs. the address line
controlled and the relative weights of each.
Address Switch Settings
1st Digit
2nd Digit
3rd Digit
Switch Label
7
6
5
4
3
2
1
Address Line Controlled
A9
A8
A7
A6
A5
A4
A3
Decimal Weight
512
256
128
64
32
16
8
Hexadecimal Weight
200
100
80
40
20
10
8
Table 4-2:
ICOM-2S Address Switch Setup
In order to read the address switch setup, assign a binary "1" to switches that are turned OFF and a
binary "0" to switches in the ON position. For example, as illustrated in the following table, switch
selection corresponds to binary 10 1101 1xxx (hex 2D8). The "xxx" represents address lines A2, A1,
and A0 used on the card to select individual registers. See Chapter 5, Programming of this manual.
Switch Label
A9
A8
A7
A6
A5
A4
A3
Setup
OFF
ON
OFF
OFF
ON
OFF
OFF
Binary Representation
1
0
1
1
0
1
1
Conversion Factors
2
1
8
4
2
1
8
HEX Representation
2
D
8
Table 4-3:
Example Address Setup
Review the Address Selection Table carefully before selecting the card address. If the addresses of
two installed functions overlap you will experience unpredictable computer behavior.
Summary of Contents for ICOM-2S
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