8
•
Installation
I/O Port
Address
(Hex)
1
A8
2
A7
3
A6
4
A5
5
A4
6
A3
200-207
ON
(0)
ON
(0)
ON
(0)
ON
(0)
ON
(0)
ON
(0)
208-20F
ON
(0)
ON
(0)
ON
(0)
ON
(0)
ON
(0)
OFF
(1)
:
2F8-2FF
ON
(0)
OFF
(1)
OFF
(1)
OFF
(1)
OFF
(1)
OFF
(1)
(*) 300-308
OFF
(1)
ON
(0)
ON
(0)
ON
(0)
ON
(0)
ON
(0)
308-30F
OFF
(1)
ON
(0)
ON
(0)
ON
(0)
ON
(0)
OFF
(1)
:
:
:
:
:
:
:
3F8-3FF
OFF
(1)
OFF
(1)
OFF
(1)
OFF
(1)
OFF
(1)
OFF
(1)
(*) : default setting
ON = 0 ; OFF = 1.
A9, ..., A3 are corresponding to PC Bus address lines
A9 is fixed as 1, and A2, A1 and A0 are fixed by 0 with hardware
How to Define a Base Address for the AC L-7225 ?
The DIP1 to DIP7 in the switch SW1 are one to one corresponding to
the PC bus address line A3 to A8. A9 is always set as 1, and A0, A1 and
A2 are always 0. If you want to change the base address, you can only
change the values of A9 to A3 ( shadow area of below diagram).
Following is an example, which shows you how to define the base
address as
Hex 300
.
Base Address :
Hex 300
3
0
0
1
1
0
0
0
0
0
0
0
0
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
Table 2.1 Address Switch Setting Table