M A G M A
Appendix A Bus Hierarchy
BusHierarchy
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,
Appendix A Bus Hierarchy | 41 |