54 SBC329 3U VPX Single Board Computer
Publication No. SBC329-HRM/1
5.5 I/O
I/O capabilities include:
PCIe lanes
5.6 Data Plane Fabric
In accordance with the OpenVPX Specification, the top half of the
allocated for the data plane connection and complies with OpenVPX module profile
MOD3-PAY-2F2x-16.2.5-3.
The PLX PEX8725 PCIe switch provides a total of 16 lanes of PCIe, which can be
configured as one x16 link or two x8 links (designated as Link A and Link B), as
follows:
Table 5-3 Data Plane Pin Mapping
Signal (PCIe)
P1
Pin
Link Assignment
(Two x8 Links Mode)
Signal (PCIe)
P1
Pin
Link Assignment
(Two x8 Links Mode)
PCIE_DP01_RX0P
A1
Link A
PCIE_DP02_RX0P
A5
Link B
PCIE_DP01_RX0N
B1
PCIE_DP02_RX0N
B5
PCIE_DP01_TX0P
D1
PCIE_DP02_TX0P
D5
PCIE_DP01_TX0N
E1
PCIE_DP02_TX0N
E5
PCIE_DP01_RX1P
B2
PCIE_DP02_RX1P
B6
PCIE_DP01_RX1N
C2
PCIE_DP02_RX1N
C6
PCIE_DP01_TX1P
E2
PCIE_DP02_TX1P
E6
PCIE_DP01_TX1N
F2
PCIE_DP02_TX1N
F6
PCIE_DP01_RX2P
A3
PCIE_DP02_RX2P
A7
PCIE_DP01_RX2N
B3
PCIE_DP02_RX2N
B7
PCIE_DP01_TX2P
D3
PCIE_DP02_TX2P
D7
PCIE_DP01_TX2N
E3
PCIE_DP02_TX2N
E7
PCIE_DP01_RX3P
B4
PCIE_DP02_RX3P
B8
PCIE_DP01_RX3N
C4
PCIE_DP02_RX3N
C8
PCIE_DP01_TX3P
E4
PCIE_DP02_TX3P
E8
PCIE_DP01_TX3N
F4
PCIE_DP02_TX3N
F8
Gen1 (2.5 GT/s per lane) and Gen2 (5 GT/s per lane) speeds are supported.
Configuration of the link width and speed is provided by a BIOS setup menu.