Table 3-1: pci express signal descriptions – IEI Integration ICE-DB-T6 User Manual
Page 31

Type 6 Carrier Board Design Guide
Page 21
D81
D82
PEG_TX9+
PEG_TX9-
O
PEG Port 9. Transmit Output differential pair.
C85
C86
PEG_RX10+
PEG_RX10-
I
PEG Port 10.. Receive Input differential pair.
D85
D86
PEG_TX10+
PEG_TX10-
O
PEG Port 10.Transmit Output differential pair.
C88
C89
PEG_RX11+
PEG_RX11-
I
PEG Port 11. Receive Input differential pair.
D88
D89
PEG_TX11+
PEG_TX11-
O
PEG Port 11. Transmit Output differential pair.
C91
C92
PEG_RX12+
PEG_RX12-
I
PEG Port 12. Receive Input differential pair.
D91
D92
PEG_TX12+
PEG_TX12-
O
PEG Port 12. Transmit Output differential pair.
C94
C95
PEG_RX13+
PEG_RX13-
I
PEG Port 13,. Receive Input differential pair.
D94
D95
PEG_TX13+
PEG_TX13-
O
PEG Port 13. Transmit Output differential pair.
C98
C99
PEG_RX14+
PEG_RX14-
I
PEG Port 14.. Receive Input differential pair.
D98
D99
PEG_TX14+
PEG_TX14-
O
PEG Port 14. Transmit Output differential pair.
C101
C102
PEG_RX15+
PEG_RX15-
I
PEG Port 15. Receive Input differential pair.
D101
D102
PEG_TX15+
PEG_TX15-
O
PEG Port 15. Transmit Output differential pair.
A88
A89
PCIE_CLK_REF
+
PCIE_CLK_REF-
O
PCIe Reference Clock for all COM Express
PCIe lanes, and for PEG lanes
D54 PEG_LANE_RV# I
3.3V
CMOS
PCI Express Graphics lane reversal input strap.
Pull low on the carrier board to reverse lane
order.
D97 PEG_ENABLE#
I
3.3V
CMOS
PEG enable function. Strap to enable PCI
Express x16 external graphics interface. Pull low
to disable internal graphics and enable the x16
interface.
PS: IEI BIOS auto detects the SDVO or
PCIe x16, please reserve for future use
Table 3-1: PCI Express Signal Descriptions