Copyright © 2006 congatec AG
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7.2
I/O Address Assignment
The I/O address assignment of the conga-CLX module is functionally identical with a standard PC/AT. The most important addresses and the
ones that differ from the standard PC/AT configuration are listed in the table below.
Table 27 I/O Address Assignment
I/O Address (hex)
Size
Available
Description
0000 - 00FF
256 bytes
No
Motherboard resources
0100 - 010F
16 bytes
No
congatec System Control
01F0 - 01F7
8 bytes
No
Primary IDE channels
02F8 - 02FF
8 bytes
Note
Serial Port 2 (COM2)
0378 - 037F
8 bytes
Note
Parallel Port 1 (LPT1)
03B0 – 03DF
16 bytes
No
Video system
03F0 - 03F5
6 bytes
Note
Floppy channel 1
03F6
1 byte
No
Primary IDE channel command port
03F7
1 byte
No
Primary IDE channel status port
03F8 - 03FF
8 bytes
Note
Serial Port 1 (COM1)
0480 – 04BF
64 bytes
No
Motherboard resources
04D0 – 04D1
2 bytes
No
Motherboard resources
0800 – 087F
128 bytes
No
Motherboard resources
0A00 – 0A0F
16 bytes
No
Motherboard resources
0CF8 - 0CFB
4 bytes
No
PCI configuration address register
0CFC - 0CFF
4 bytes
No
PCI configuration data register
6000 - 6008
8 bytes
No
System Management BUS
6100 - 61FF
256 bytes
No
GPIO Subsystem
6200 - 623F
64 bytes
No
MFGP timer register
9D00 - 9D7F
128 bytes
No
Power management register
9C00 - 9C40
128 bytes
No
ACPI register
AC1C - AC1F
4 bytes
No
VSA virtual register port
DC00 - DCFF
256 bytes
No
Ethernet controller registers
DD80 - DEFF
384bytes
No
Audio controller registers
DEA0 - DFFF
96 bytes
No
RAID controller registers
EFF0 – EFFF
16 bytes
No
IDE controller registers
Note
The I/O addresses for floppy port, parallel port and serial ports are only reserved, if an off-board Winbond W83627HG LPC Super I/O controller
is located on the carrier board and the devices are enabled in the BIOS Setup Program. The default I/O address for this device can be changed
using the BIOS Setup program.
