ICS Advent AOB16/16, Product Manual

Page: 16 / 40

Manual Number: 00650-010-6 Page 7
Chapter 4: Address Selection
The AOB8/16 and AOB16/16 require 16 or 32 consecutive address locations in I/O space, respec-
tively. The starting, or base address, can be selected anywhere within an I/O address range 100-3FF
hex (except 1F0 through 1F8) in AT-class computers and 200- 3FF in XT-class computers, provid-
ing that the address does not overlap with other functions. If in doubt refer to the table below for
a list of standard address assignments. The Base Address Locator program FINDBASE provided
on diskette will assist you in selecting a base address that will avoid this conflict.
Hex Range Usage
000-0FF Internal System - Not Usable
1F0-1FF AT Hard Disk
200-207 Game Control
278-27F Parallel Port (LPT2)
238-23B Bus Mouse
2E8-2EF Asynchronous Communications (COM4)
2F8-2FF Asynchronous Communications (COM2)
300-31F Prototype Card
320-32F XT Hard Disk
378-37F Parallel Port (LPT1)
380-38F SDLC Communications
3A0-3AF SDLC Communications
3B0-3BB MDA
3BC-3BF Alt. Parrallel Port
3C0-3CF EGA
3DO-3DF CGA
3E8-3EF Asynchronous Communications (COM3)
3F0-3F7 Floppy Disk
3F8-3FF Asynchronous Communications (COM1)
Figure 4-1: Standard Address Assignments for PC and PC/XT Computers