Digi 90031300 manual ISA Host Adapters, Setting the I/O Port Address

ISA Host Adapters

Setting the I/O Port Address

The ISA EPC/X host adapter uses four bytes of address space on the host computer’s I/O bus. Before installing the host adapter, the board’s I/O port starting address must be set on DIP switch SW1 (located on the top of the board). To insure flexibility, seven I/O port address ranges are available: 108h-10Bh, 118h-11Bh, 128h-12Bh, 208h-20Bh, 228h-22Bh, 308h-30Bh and 328h-32Bh. Choose one of the starting addresses and set SW1-1, 2 and 3 as shown in Figure 12 below.

Figure 12 DIP Switch Settings for I/O Port Address

OFF

1 2 3 4

108h

OFF

1 2 3 4

208h

OFF

1 2 3 4

118h

OFF

1 2 3 4

228h

OFF

1 2 3 4

128h

OFF

1 2 3 4

308h

OFF

1 2 3 4

328h

Record the I/O port address that you set. You will need to know the address when you install the device driver.

Hardware Installation 21