Cmos Battery Connector (Bat1); Full-Size Pci-Express Mini Card And Msata Connector (Scn1) - AXIOMTEK PICO840 User Manual

2.5.14

CMOS Battery Connector (BAT1)

This connector is for CMOS battery interface.
Pin
1
2
2.5.15 Full-size PCI-Express Mini Card and mSATA Connector
(SCN1)
This is a full-size PCI-Express Mini Card connector on the bottom side applying to either
PCI-Express or USB 2.0 or SATA (mSATA). It complies with PCI-Express Mini Card Spec.
V1.2. It can also support mSATA cards. Please refer to BIOS setting in section 5.4 to
enable or disable mSATA support.
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
PE_RXN3/
23
SATA_RXP
PE_RXP3/
25
SATA_RXN
27 GND
29 GND
PE_TXN3/
31
SATA_TXN
PE_TXP3/
33
SATA_TXP
35 GND
37 GND
39 +3.3VSB
41 +3.3VSB
43 GND
45 No use
47 No use
49 No use
51 No use
Board and Pin Assignments
Signal
+3.3V
GND
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 W_DISABLE#
22 PERST#
24 +3.3VSB
26 GND
28 +1.5V
30 SMB_CLK
32 SMB_DATA
34 GND
36 USB_D8-
38 USB_D8+
40 GND
42 No use
44 No use
46 No use
48 +1.5V
50 GND
52 +3.3VSB
PICO840/842 Pico-ITX Board
1
21