User manual

4-1
Manual MICOM-2S.Eb
Chapter 4: Address Selection
The ICOM-2S base address can be selected anywhere within an I/O address range 100-3F8 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 will assist you to select a base address that will avoid conflict with other
installed computer resources.
Hex Range Usage
000-01F DMA Controller 1
020-03F INT Controller 1, Master
040-05F Timer
060-06F 8042 (Keyboard)
070-07F Real Time Clock, NMI Mask
080-09F DMA Page Register
0A0-0BF INT Controller 2
0C0-0DF DMA Controller 2
0F0 Clear Math Coprocessor Busy
0F1 Reset Coprocessor
0F8-0FF Arithmetic Processor
1F0-1F8 IDE Fixed Disk
200-207 Game I/O
278-27F Parallel Printer Port 2
2F8-2FF Asynchronous Comm’n (Secondary)
300-31F Prototype Card
360-36F Reserved
378-37F Parallel Printer Port 1
380-38F SDLC or Binary Synchronous Comm’n 2
3A0-3AF Binary Synchronous Comm’n 1
3B0-3BF Monochrome Display/Printer
3C0-3CE Local Area Network
3D0-3DF Color/Graphic Monitor
3F0-3F7 Floppy Diskette Controller
3F8-3FF Asynchronous Comm’n (Primary)
Table 4-1: Standard Address Assignments for 286/386/486 Computers