14
DigiBoard Intelligent Serial Communications Boards
I/O Port Address—DS1, Switches 9-11
Each PC/Xi board must have a unique I/O port address. This address must not
be used by any other device in the system, including other PC/Xi boards. The
I/O port address is determined by setting switches 9, 10 and 11 of DIP switch
DS1 as shown below.
Figure 5
DS1, SW9-11—PC/Xi I/O Port Selection
1
2
3
4
5
6
7
8
9 10 11
100h
1
2
3
4
5
6
7
8
9 10 11
110h
1
2
3
4
5
6
7
8
9 10 11
120h
1
2
3
4
5
6
7
8
9 10 11
200h
1
2
3
4
5
6
7
8
9 10 11
220h
1
2
3
4
5
6
7
8
9 10 11
300h
1
2
3
4
5
6
7
8
9 10 11
320h
