5 pci-express connectors, 1 pci-express x8, Pci-express connectors – Kontron KT690-mITX (BGA) - dual core User Manual
Page 37: Pci-express x8, Kt690 family

KT690 Family
KTD-00738-J
Public User Manual
Date 2012-06-01
Page
37
PCI-Express Connectors
4.5
The KT690 board contains one 8-lane (x8) PCI Express port on a PCI Express x16 connector. The PCI
Express port is compliant to the PCI Express Specification revision 1.1a.
The x8 port operates at a frequency of 2.5 Gb/s on each lane; the port supports a maximum theoretical
bandwidth of 20 Gb/s in each direction.
The 8-lane (x8) PCI Express port supports:
1. An external graphics device utilizing all 8 lanes
2. A single x1, x2 or x4 general purpose PCI Express link
The PCI Express port does not support SDVO and ADD2 cards.
4.5.1
PCI-Express x8
The KT690 boards supports one 8-lane (x8) PCI Express port for external PCI Express based graphics
boards.
Note
Type
Signal
PIN
Signal
Type
Note
+12V
B1
A1
NC
+12V
B2
A2
+12V
+12V
B3
A3
+12V
GND
B4
A4
GND
SMB_CLK
B5
A5
NC
SMB_DATA
B6
A6
NC
GND
B7
A7
NC
+3V3
B8
A8
NC
NC
B9
A9
+3V3
SB3V3
B10
A10
+3V3
WAKE#
B11
A11
RST#
NC
B12
A12
GND
GND
B13
A13
PCIE_x16 CLK
PEG_TXP[0]
B14
A14
PCIE_x16 CLK#
PEG_TXN[0]
B15
A15
GND
GND
B16
A16
PEG_RXP[0]
I2C_CLK
B17
A17
PEG_RXN[0]
GND
B18
A18
GND
PEG_TXP[1]
B19
A19
NC
PEG_TXN[1]
B20
A20
GND
GND
B21
A21
PEG_RXP[1]
GND
B22
A22
PEG_RXN[1]
PEG_TXP[2]
B23
A23
GND
PEG_TXN[2]
B24
A24
GND
GND
B25
A25
PEG_RXP[2]
GND
B26
A26
PEG_RXN[2]
PEG_TXP[3]
B27
A27
GND
PEG_TXN[3]
B28
A28
GND
GND
B29
A29
PEG_RXP[3]
NC
B30
A30
PEG_RXN[3]
DDC_DATA
B31
A31
GND
GND
B32
A32
NC
PEG_TXP[4]
B33
A33
NC
PEG_TXN[4]
B34
A34
GND
GND
B35
A35
PEG_RXP[4]
GND
B36
A36
PEG_RXN[4]
PEG_TXP[5]
B37
A37
GND
PEG_TXN[5]
B38
A38
GND
GND
B39
A39
PEG_RXP[5]
GND
B40
A40
PEG_RXN[5]
PEG_TXP[6]
B41
A41
GND
PEG_TXN[6]
B42
A42
GND
GND
B43
A43
PEG_RXP[6]
GND
B44
A44
PEG_RXN[6]
PEG_TXP[7]
B45
A45
GND
PEG_TXN[7]
B46
A46
GND
GND
B47
A47
PEG_RXP[7]
(continues)