Pci-Express Mini Card Connector (Cn25) - AXIOMTEK Qseven Q7B300 User Manual

Q7B300 Qseven Module Development Board
2.5.16

PCI-Express Mini Card Connector (CN25)

The CN25 is a PCI-Express Mini Card connector supporting PCI-Express x1 link and
USB 2.0 link. The PCI-Express Mini Card can be applied to either PCI-Express or USB
2.0.
Pin Signal
1 WAKE#
3 No use
5 No use
7 CLKREQ#
9 GND
11 REFCLK-
13 REFCLK+
15 GND
17 No use
19 No use
21 GND
23 PCIE_RX0-
25 PCIE_RX0+
27 GND
29 GND
31 PCIE_TX0-
33 PCIE_TX0+
35 GND
37 GND
39 No use
41 No use
43 No use
45 No use
47 No use
49 No use
51 No use
24
Pin Signal
2 +3.3VSB
4 GND
6 +1.5V
8 No use
10 No use
12 No use
14 No use
16 No use
18 GND
20 No use
22 PERST#
24 +3.3VSB
26 GND
28 +1.5V
30 SMB_CLK
32 SMB_DATA
34 GND
36 USB_P3-
38 USB_P3+
40 GND
42 No use
44 No use
46 No use
48 +1.5V
50 GND
52 +3.3VSB
Board and Pin Assignments