cExpress-AR User’s Guide
PICMG COM.0 R3.0
Page 55
Copyright © 2021 ADLINK Technology, Inc.
Name
Pin #
Description
I/O
PU / PD
Comment
PEG_TX5-
D68
D69
PCI Express Graphics transmit differential pairs.
These are the same lines as PCIE_TX[16:31]+ and – in Module pin-
out Type 6
O PCIE
AC coupled on Module
PEG_RX5-
C68
C69
PCI Express Graphics receive differential pairs.
These are the same lines as PCIE_TX[16:31]+ and – in Module pin-
out Type 6
I PCIE
AC coupled off Module
PEG_TX6-
D71
D72
PCI Express Graphics transmit differential pairs.
These are the same lines as PCIE_TX[16:31]+ and – in Module pin-
out Type 6
O PCIE
AC coupled on Module
PEG_RX6-
C71
C72
PCI Express Graphics receive differential pairs.
These are the same lines as PCIE_TX[16:31]+ and – in Module pin-
out Type 6
I PCIE
AC coupled off Module
PEG_TX7-
D74
D75
PCI Express Graphics transmit differential pairs.
These are the same lines as PCIE_TX[16:31]+ and – in Module pin-
out Type 6
O PCIE
AC coupled on Module
PEG_RX7-
C74
C75
PCI Express Graphics receive differential pairs.
These are the same lines as PCIE_TX[16:31]+ and – in Module pin-
out Type 6
I PCIE
AC coupled off Module
PEG_LANE_RV# D54
PCI Express Graphics lane reversal input strap. Pull low on the
Carrier Board to reverse lane order.
I 3.3V Not
supported
Note:
Only lanes 0-7 from the 16 lanes of the PEG port are supported. The available configurations are one x8 or two x4.