St Mb Memory Address Map; I/O Addresses - Xycom 4115T User Manual

4115T Light Duty Industrial PC
st
1 MB Memory Address Map

I/O Addresses

I/O Address Range Description
000-01F
020-021
040-05F
060-06F
070-07F
080-09F
0A0-0BF
0C0-0DF
0F0-0F0
0F1-0F1
0F8-0FF
408-409
170-1F7
278-27F
2E8-2EF
2F8-2FF
376-376
378-37F
3A0-3AF
3B0-3DF
3F0-3F7
3E8-3EF
3F0-3F7
3E8-3EF
3F8-3FF
480-48F
Table C–3. 1st MB Memory Address Map
Memory Address Description
00000-9FFFF System Memory
A0000-BFFFF VGA Buffer
C0000-CFFFF VGA BIOS
E0000-FFFFF System BIOS
100000 Extended Memory
Table C–4. I/O Addresses
DMA Controller #1
Interrupt Controller #1, Master
System Timer
Standard 101/102 keyboard controller
Real Time Clock, NMI controller
DMA Page Register
Interrupt Controller #2
DMA Controller #2
Clear Math Coprocessor Busy
Reset Math Coprocessor
Math Coprocessor
Digital Input/Output
Fixed Disk
Parallel Printer Port (LPT2)
Serial Port 4 (COM4)
Serial Port 2 (COM2)
BUS Master PCI IDE Controller
Parallel Printer Port 1
Bisynchronous 1
Intel 82845G/GL Graphic Controller
Floppy Disk Controller
Serial Port 3 (COM3)
Diskette Controller
Serial Port 3 (COM3)
Serial Port 1 (COM1)
PCI BUS
62
Appendix D – DMA, IRQ and 1
st
MB Memory
143926(A)