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2014
congatec
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TS87m13
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10
System Resources
10.1
I/O Address Assignment
The I/O address assignment of the conga-TS87 module is functionally identical with a standard PC/AT.
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.
10.1.1
LPC Bus
On the conga-TS87, the PCI Express Bus acts as the subtractive decoding agent. All I/O cycles that are not positively decoded are forwarded
to the PCI Bus not the LPC Bus. Only specified I/O ranges are forwarded to the LPC Bus. In the congatec Embedded BIOS, the following I/O
address ranges are sent to the LPC Bus:
2Eh – 2Fh
4Eh – 4Fh
60h, 64h
A00 – BFFh
Parts of these ranges are not available if a Super I/O is used on the carrier board. If a Super I/O is not implemented on the carrier board, then
this range is available for customer use. If you require additional LPC Bus resources other than those mentioned above, or more information
about this subject, contact congatec technical support for assistance.
