CHAMP-AV8 (VPX6-462) HARDWARE USER’S MANUAL CURTISS-WRIGHT
1-10 PROPRIETARY 826448 VERSION 5 MARCH 2015
SRIO FABRIC
The CHAMP-AV8 provides PCIe-SRIO bridge devices and an SRIO Gen2 switch to connect the
SRIO backplane fabric with the Intel Processors. Each processor connects to either one or two
PCIe-SRIO bridges providing up to 8 GB/s total bandwidth on-board. An 8-port SRIO switch is
connected to the processors and the four ports on the data plane connector via the PCIe-SRIO
bridges. This provides both on-board switching as well as off-board SRIO fabric connectivity
and enables distributed switching architectures, avoiding the need for a separate switch card.
The PCIe-SRIO bridges operate at a SRIO link maximum rate of 5Gbps.
Multiple CHAMP-AV8 cards may be connected using the SRIO fabric interface. Table 1.2 below
and Figure 1.5 on page 1-11 show the SRIO port numbers and mapping to the processor and
the backplane.
Table 1.2: CPS-1432 SRIO Switch Port Numbering
SRIO Switch Port Connection
0 Node A PCIe-SRIO Bridge 2
1 Node B PCIe-SRIO Bridge 2
2 Backplane Port C
3 Backplane Port A
4 Node B PCIe-SRIO Bridge 1
5 Backplane Port D
6 Backplane Port B
7 Node A PCIe-SRIO Bridge 1
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