International Computer Hardware User Manual

CX-MB-EVA2 User's Manual Hardware

4.3 PCI Express x1 Slots

One PCIe x1 slot is assigned to each of the 6 PCIe lanes of the COM Express module.

Note: The order of the connectors has changed on the new layout. Now X6 is near PEG

slot.

Note : The number of PCIe lanes available will depend on the COM Express module

used – not all modules can support 6 PCIe lanes.

PCIe Lane References

PCIe Lane 0 X6

PCIe Lane 1 X7

PCIe Lane 2 X8

PCIe Lane 3 X9

PCIe Lane 4 X10

PCIe Lane 5 X11

Table 5 Assignment PCIe Lane to connector reference

Specification:

 References: X6 - X11

 Connector: AMP / Tyco 4-1612163-1

 Pinout: Refer to PCI express specification

Pin Signal Pin Signal

A1 PRSNT1# B1 12V

A2 12V B2 12V

A3 12V B3 12V

A4 GND B4 GND

A5 JTAG_TCK B5 SMB_CLK

A6 JTAG_TDI B6 SMB_DAT

A7 JTAG_TDO B7 GND

A8 JTAG_TMS B8 3V3

A9 3V3 B9 JTAG_RST#

A10 3V3 B10 3V3_AUX

A11 PE_RST# B11 WAKE#

KEY

A12 GND B12 RSVD

A13 REFCLK+ B13 GND

A14 REFCLK- B14 PET_p0

A15 GND B15 PET_n0

A16 PER_p0 B16 GND

A17 PER_n0 B17 PRSNT2#

A18 GND B18 GND

Table 6 Pin out PCI Express