Inc User's Manual Adapter DFlex-4/104

2-2 Chapter 2: Hardware Installation
DFlex-4/104 User's Manual, ver. 0.04
Port Addresses
Port addresses are configured with the DIP switch block SW1
situated near the PC/104 bus connector on the DFlex-4/104
adapter. DIP switches 1, 2, and 3 select a set of port addresses for
the ports while DIP switch 6 enables or disables a specific status
port address for that set of addresses. Please refer to Figure 4 for
a description and location of the switch block, while Table 2
provides the switch settings for the various port address sets.
However many other devices may require port addresses in your
computer's I/O address space. In most cases the factory setting is
sufficient, but when there is a conflict, SW1 may require a
different setting. Table 1 summarizes typical I/O port address
usage.
WARNING
Do not use a pencil to set the DIP switches as the lead graphite
may short-circuit the switch.
Table 1: Typical port address usage
Port Address (Hex) Usage
000 - 0FF Reserved
170 - 177 Fixed disk controller (primary)
1F0 - 1F7 Fixed disk controller (secondary)
200 - 207 Game port
278 -27F Parallel port (LPT2)
2C0 - 2CF EGA video adapter (#2)
2F8 - 2FF Asynchronous serial port (COM2)
360 - 36F Parallel port (LPT1)
370 - 377 Floppy disk controller (secondary)
378 - 37F Parallel port (LPT1)
380 - 38F SDLC adapter (#2)
3A0 - 3AF SDLC adapter (#1)
3B0 - 3BF Video adapters
3F0 - 3F7 Floppy disk controller (primary)
3F8 - 3FF Asynchronous serial port (COM1)