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8.2
I/O Address Assignment
The I/O address assignment of the conga-BM67/BS67 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 30 I/O Address Assignment
I/O Address (hex)
Size
Available
Description
0000 - 00FF
256 bytes
No
Motherboard resources
03B0 – 03DF
16 bytes
No
Video system
0400 - 047F
128 bytes
No
Motherboard resources
0500 - 057F
128 bytes
No
Motherboard resources
0CF8 - 0CFB
4 bytes
No
PCI configuration address register
0CFC - 0CFF
4 bytes
No
PCI configuration data register
0D00 – FFFF
See note
PCI / PCI Express bus
Note
The BIOS assigns PCI and PCI Express I/O resources from FFF0h downwards. Non PnP/PCI/PCI Express compliant devices must not
consume I/O resources in that area.