Appendix a bus hierarchy, Bus hierarchy – Mobility Electronics PCI Expansion System P13RR-TEL User Manual
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M A G M A
Appendix A Bus Hierarchy 41
Appendix A Bus Hierarchy
Bus Hierarchy
The following figure is representative of the PCI Bus hierarchies for the
13 Slot PCI to PCI Expansion System. This figure pictorially conveys the
overall PCI bus topology of the system.
13 Slot Topology
In general, we do not know what the actual Bus numbers are. We only
know how they increment starting from the PCI expansion host card.
The key point in the figure of the 13 Slot Topology is that the connecting
cable between the PCI expansion host card and the 13 Slot backplane
is actually a PCI bus itself. This is represented in the Windows Device
Manager as shown below:
All PCI cards installed in the PCI Expansion chassis will appear on
the Third PCI Bus behind the PCI Bus that the PCI host card is
installed on. If you need to know the actual Bus number, right-click
on the Bus and select Properties.