MSC C6B-SLH
MSC C6B-SLH User Manual
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2.13.4 PCI Express Lanes
Signal
Pin
Type
Signal
Level
Power
Rail
Remark /
Tolerance
PU/PD/SR
Description
Source / Target
PCIE_TX[0:7]+
PCIE_TX[0:7]-
O
PCIe
1.0V
AC coupled
on module
PCI Express Differential Transmit Pairs 0 through 7
PCH
PCIE_RX[0:7]+
PCIE_RX[0:7]-
I
PCIe
1.0V
AC coupled
off module
PCI Express Differential Receive Pairs 0 through 7
PCH
PCIE_
PCIE_CLK_REF-
O
PCIe
CLK
1.0V
Differential Reference Clock output for all PCI Express and PCI
Express Graphics lanes.
PCH
NOTE: Considerable care must be taken when using high speed signals on the carrier board. Reliable functionality depends on the following
factors:
•
Trace length on the carrier board
•
Number of vias used on the carrier board
•
PCB material and specification used for the carrier board
•
Target device
2.13.5 PCI Express x16 Graphic Lanes
Signal
Pin
Type
Signal
Level
Power
Rail
Remark /
Tolerance
PU/PD/SR
Description
Source / Target
PEG_TX[0:15]+
PEG_TX[0:15]-
O
PCIe
3.3V
AC coupled
on module
PCI Express Graphics transmit differential pairs.
These signals can also be used as standard PCI Express transmit
lanes as PCIE_TX[16:31]+/-
CPU
PEG_RX[0:15]+
PEG_RX[0:15]-
I
PCIe
3.3V
AC coupled
off module
PCI Express Graphics receive differential pairs.
These signals can also be used as standard PCI Express receive
lanes as PCIE_RX[16:31]+/-
CPU
PEG_LANE_RV#
I
CMOS 3.3V
3.3V
PCI Express Graphics lane reversal input strap.
Pull low on the carrier board to reverse lane order.
This will reverse all the 16 lanes on the PEG interface.
Otherwise leave floating.
CPU