C.1 io address map – IEI Integration IEM-LX v1.10 User Manual
Page 142

IEM-LX-800 ETX CPU Module
Page 126
C.1 IO Address Map
I/O address
Range
Description
000-01F
DMA Controller
020-021
Interrupt Controller
040-043
System time
060-06F
Keyboard Controller
070-07F
System CMOS/Real time Clock
080-09F
DMA Controller
0A0-0A1
Interrupt Controller
0C0-0DF
DMA Controller
0F0-0FF
Numeric data processor
1F0-1F7
Primary IDE Channel
2F8-2FF
Serial Port 2 (COM2)
378-37F
Parallel Printer Port 1 (LPT1)
3B0-3BB
AMD Graphics Controller
3C0-3DF
AMD Graphics Controller
3F6-3F6
Primary IDE Channel
3F7-3F7
Standard floppy disk controller
3F8-3FF
Serial Port 1 (COM1)
Table C-1: IO Address Map
C.2 1st MB Memory Address Map
Memory address
Description
00000-9FFFF
System memory
A0000-BFFFF
VGA buffer
F0000-FFFFF
System BIOS
1000000-
Extend BIOS
Table C-2: 1
st
MB Memory Address Map