User manual

Chapter 4: Address Selection
The board’s base address can be selected anywhere within the I/O bus address range 000-3E0 hex,
providing 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 primary and secondary binary synchronous communication
ports are supported by the Operating System.) The base address locator program FINDBASE provided
on CD (or diskettes) will assist you to select a base address that will avoid conflict with other installed
computer resources. Then, the SETUP program will show you where to position the address jumpers
when you have selected a base address.
The following provides background information to help you better understand this process.
Table 4-1: Standard Address Assignments for Computers
HEX RANGE USAGE
000-00F
020-021
040-043
060-06F
070-07F
080-09F
0A0-0BF
0C0-0DF
0F0-0F1
0F8-0FF
170-177
1F0-1F8
200-207
238-23B
23C-23F
278-27F
2B0-2BF
2C0-2CF
2D0-2DF
2E0-2E7
2E8-2EF
2F8-2FF
300-30F
310-31F
320-32F
370-377
378-37F
380-38F
3A0-3AF
3B0-3BB
3BC-3BF
3C0-3CF
3D0-3DF
3E8-3EF
3F0-3F7
3F8-3FF
8237 DMA Controller 1
8259 Interrupt
8253 Timer
8042 Keyboard Controller
CMOS RAM, NMI Mask Reg, RT Clock
DMA Page Register
8259 Slave Interrupt Controller
8237 DMA Controller 2
Math Coprocessor
Math Coprocessor
Fixed Disk Controller 2
Fixed Disk Controller 1
Game Port
Bus Mouse
Alt. Bus Mouse
Parallel Printer
EGA
EGA
EGA
GPIB (AT)
Serial Port
Serial Port
Hard Disk (XT)
Floppy Controller 2
Parallel Printer
SDLC
SDLC
MDA
Parallel Printer
VGA EGA
CGA
Serial Port
Floppy Controller 1
Serial Port
Manual 104-ICOM-2S, 104-COM-2S 16