17 other connectors, Cny2-3: digital i/o, Cn29: miscellaneous connector – ADLINK Express-BASE User Manual
Page 33: Cn25: gpio header
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Page 33
Express-BASE User’s Manual
CNY2-3: Digital I/O
The Express-Base provides
GPIO expansion for I²C
applications via a Phillips
PCA955 with 16-bit I²C
I/O port and interrupt.
Pin
Signal
Pin
Signal
1
I/O 0
11
GND
2
I/O 1
12
GND
3
I/O 2
13
GND
4
I/O 3
14
GND
5
I/O 4
15
GND
6
I/O 5
16
GND
7
I/O 6
17
GND
8
I/O 7
18
GND
9
INT#
19
BATLOW#
10
3V3
20
+3.3V
Pin
Signal
Pin
Signal
1
Power LED
11
Speaker
2
Power LED
12
Speaker
3
Power LED
13
Speaker
4
Keyboard Lock
14
Speaker
5
Keyboard Lock
15
RESET
6
NC
16
RESET
7
NC
17
HDD LED
8
NC
18
HDD LED
9
NC
19
Power Button
10
NC
20
Power Button
CN29:
Miscellaneous
Connector
6.17 Other Connectors
1 11
10 20
CN25:
GPIO Header
GPIOs of CN25 come from
the COM Express module.
Pin
Signal
Pin
Signal
1
GPI0
2
GPO0
3
GPI1
4
GPO1
5
GPI2
6
GPO2
7
GPI3
8
GPO3
1
2
7
8
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