System Resources; I/O Address Assignment; Lpc Bus; Table 37 I/O Address Ranges To Lpc Bus - Congatec COM Express conga-TR3 User Manual

10

System Resources

10.1

I/O Address Assignment

The I/O address assignment of the conga-TR3 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-TR3, the PCIExpress Bus acts as the subtractive decoding agent. All I/O cycles that are not positively decoded are forwarded
to the PCIExpress Bus not the LPC Bus. Only specified I/O ranges are forwarded to the LPC Bus. On the conga-TR3 the following I/O address
ranges are sent to the LPC Bus:
Table 37 I/O address ranges to LPC Bus
Copyright © 2016 congatec AG
ParallelPort0 378h-37Fh
ParallelPort1 778h-77Fh
ParallelPort2 278h-27Fh
ParallelPort3 678h-67Fh
ParallelPort4 3BCh-3BFh
ParallelPort5 7BCh-7BFh
SerialPort0 3F8h-3FFh
SerialPort1 2F8h-2FFh
SerialPort2 220h-227h
SerialPort3 228h-22Fh
SerialPort4 238h-23Fh
SerialPort5 2E8h-2EFh
SerialPort6 338h-33Fh
SerialPort7 3E8h-3EFh
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