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Interrupt Status Register SW2
Bit
Function
0
Port1
1
Port2
2
Port3
3
Port4
4
Port5
5
Port6
6
Port7
7
Port8
The user may change the interrupt status address via SW2. Please note
the address decorder will occupy a continuous, 8-bytes area related to
switch setting. For example, if you set the switch to 210H, then the
address 210H to 217H will all be decoded. The various DIP switch
setting (SW2) for the interrupt status register are shown in the table.
A
200H
210H
· · · · · · · · · ·
250H
· · · · · · · · · ·
300H
· · · · · · · · · ·
3F0H
A
A
3
4
5
: on
A
A
A
6
7
8
: off
Chapter 2 Hardware Installation
A
9
17
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