Lex System 2I385A, Manual, Page: 40 / 96

35
MPCE1/MPCE2: Support USB and PCIe by one Interface (Mini card socket 52pin)
MPCE1 : Full size mini card
MPCE2 : Half size mini card
3-18 PCI Express Mini card
PIN NO. Description PIN NO. Description
1 NC 2 +3.3V
3 NC 4 GND
5 NC 6 +1.5V
7 NC 8 NC
9 GND 10 NC
11 PCIe-CLK- 12 NC
13 PCIe-CLK+ 14 NC
15 GND 16 NC
KEY KEY KEY KEY
17 NC 18 GND
19 NC 20 NC
21 GND 22 Reset
23 PCIe-RX-/mSATA-RX+ 24 +3.3V
25 PCIe-RX+/mSATA-RX- 26 GND
27 GND 28 +1.5V
29 GND 30 SMB-CLK
31 PCIe-TX-/mSATA-TX- 32 SMB-DATA
33 PCIe-TX+/mSATA-TX+ 34 GND
35 GND 36 USB-DATA-
37 GND 38 USB-DATA+
39 +3.3V 40 GND
41 +3.3V 42 NC
43 GND 44 NC
45 NC 46 NC
47 NC 48 +1.5V
49 NC 50 GND
51 mSATA/PCIe detect 52 +3.3V
Note: MPCE1 Pin51 mSATA / PCIe auto detect function
The mSATA signal share with SATA of SATA1, but just one can be worked in same time.
MPCE1
MPCE2
pin1
pin1
pin52
pin52