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C-12 Return to Section Topics KPXI-CON-900-01 Rev. A / January 2007
Appendix C: PCI-to-PXI, PXI-to-PXI Extension User’s Guide KPXI System Controller User’s Manual
interface is capable of 64-bit/66MHz. Thus the maximum data throughput can up to 528Mbytes/s.
The PCI interface acts like the primary side of a PCI-to-PCI bridge if KPXI-CON-PCIREM/
KPXI-CON-PXIREM is plugged into the peripheral slot. The PCI interface in KPXI-CON-PXIREM
acts like the secondary side of a PCI-to-PCI bridge if KPXI-CON-PXIREM is plugged into the
system slot. The secondary side PCI interface of PCI-to-PCI bridge is responsible to the central
resources and system clocks generation.
Figure C-5
Block diagram
Bus architecture
Each extension module has two link ports. Users can use one of them to extend PCI bus to a PXI
chassis or both of them to extend PCI bus to two PXI chassis.
The following figure represents an example of the PCI extension architecture. The desktop PC or
PXI system extends the PCI bus to two PXI chassis via KPXI-CON-PCIREM/KPXI-CON-PXIREM
modules. From the system view, the three modules act as three PCI-to-PCI bridges. Thus the
serial interconnection between these bridges is also a bus, i.e. bus 1 in this example, although it’s
not PCI architecture.
NOTE
Basic configuration is shown in Figure C-2 .