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Table 13 PCI Express Signal Descriptions (general purpose)
Signal
Pin # Description
I/O
PU/PD
Comment
P
PCIE_RX0-
B68
B69
PCI Express channel 0, Receive Input differential pair.
I PCIE
Supports PCI Express Base Specification, Revision 3.0
P
PCIE_TX0-
A68
A69
PCI Express channel 0, Transmit Output differential pair.
O PCIE
Supports PCI Express Base Specification, Revision 3.0
P
PCIE_RX1-
B64
B65
PCI Express channel 1, Receive Input differential pair.
I PCIE
Supports PCI Express Base Specification, Revision 3.0
P
PCIE_TX1-
A64
A65
PCI Express channel 1, Transmit Output differential pair.
O PCIE
Supports PCI Express Base Specification, Revision 3.0
P
PCIE_RX2-
B61
B62
PCI Express channel 2, Receive Input differential pair.
I PCIE
Supports PCI Express Base Specification, Revision 3.0
P
PCIE_TX2-
A61
A62
PCI Express channel 2, Transmit Output differential pair.
O PCIE
Supports PCI Express Base Specification, Revision 3.0
P
PCIE_RX3-
B58
B59
PCI Express channel 3, Receive Input differential pair.
I PCIE
Supports PCI Express Base Specification, Revision 3.0
P
PCIE_TX3-
A58
A59
PCI Express channel 3, Transmit Output differential pair.
O PCIE
Supports PCI Express Base Specification, Revision 3.0
P
PCIE_RX4-
B55
B56
PCI Express channel 4, Receive Input differential pair.
I PCIE
Supports PCI Express Base Specification, Revision 3.0
P
PCIE_TX4-
A55
A56
PCI Express channel 4, Transmit Output differential pair.
O PCIE
Supports PCI Express Base Specification, Revision 3.0
P
PCIE_RX5-
B52
B53
PCI Express channel 5, Receive Input differential pair.
I PCIE
Supports PCI Express Base Specification, Revision 3.0
P
PCIE_TX5-
A52
A53
PCI Express channel 5, Transmit Output differential pair.
O PCIE
Supports PCI Express Base Specification, Revision 3.0
PCIE_
PCIE_CLK_REF-
A88
A89
PCI Express Reference Clock output for all PCI Express
and PCI Express Graphics Lanes.
O PCIE
A PCI Express Gen2/3 compliant clock buffer chip must be used
on the carrier board if the design involves more than one PCI
Express device.
Note
PCIe lanes 4 and 5 are not supported if the optional PEG port is implemented.