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CAPA831 Intel
®
Atom
TM
D2550/N2800/N2600 Processor 3.5” SBC
Board and Pin Assignments
17
2.4.4
PCI-Express Mini Card Connector (CN4)
This is a PCI-Express Mini Card connector which supports PCI-Express x1 link and USB
2.0 link. A PCI-Express Mini Card can be applied to either PCI-Express or USB 2.0. It
complies with PCI-Express Mini Card Spec. V1.2.
2.4.5 Digital
I/O
Port Connector (CN5)
The board is equipped with an 8-channel (3 inputs and 5 outputs) digital I/O connector
that meets requirements for a system customary automation control. The digital I/O can
be configured to control cash drawers and sense warning signals from an Uninterrupted
Power System (UPS), or perform store security control. You may use software
programming to control these digital signals.
Pin Signal
Pin
Signal
1
WAKE#
2
+3.3VSB
3
No use
4
GND
5
No use
6
+1.5V
7
CLKREQ#
8
No use
9
GND
10
No use
11
REFCLK-
12
No use
13
14
No use
15
GND
16
No use
17
No use
18
GND
19
No use
20
W_DISABLE#
21
GND
22
PERST#
23
PE_RXN3
24
+3.3VSB
25
PE_RXP3
26
GND
27
GND
28
+1.5V
29
GND
30
SMB_CLK
31
PE_TXN3
32
SMB_DATA
33
PE_TXP3
34
GND
35
GND
36
USB_D8-
37
GND
38
39
+3.3VSB
40
GND
41
+3.3VSB
42
No use
43
GND
44
No use
45
No use
46
No use
47
No use
48
+1.5V
49
No use
50
GND
51
No use
52
+3.3VSB
Pin Signal
Pin
Signal
1
Digital Input 0
2
Digital Output 0
3
Digital Input 1
4
Digital Output 1
5
Digital Input 2
6
Digital Output 2
7
GND
8
Digital Output 3
9
GND
10
Digital Output 4
Summary of Contents for CAPA831
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