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CNY2-3: Digital I/O
The Express-Base provides
GPIO expansion for I²C
applications via a Phillips
PCA955 that provides a
16-bit I²C I/O port with
interrupt.
CNY4:
Feature Connector
Express-BASE User's Manual
Pin
1
2
3
4
5
6
7
8
9
10
Pin
1
3
5
1
2
7
9
11
13
15
17
19
21
23
25
27
29
31
39
40
33
35
37
39
Signal
Pin
Signal
I/O 0
11
GND
I/O 1
12
GND
I/O 2
13
GND
I/O 3
14
GND
I/O 4
15
GND
I/O 5
16
GND
I/O 6
17
GND
I/O 7
18
GND
INT#
19
BATLOW#
3V3
20
+3.3V
Signal
Pin
Signal
+5V
2
+5VSB
+5V
4
Hard Disk Activity
I2C_DAT
6
SMBCLK_SB
I2C_CK
8
SMBDATA_SB
Internal use
10
GPO0
Internal use
12
GPO1
PS_ON#
14
GPO2
SUS_S3#
16
GPO3
GND
18
GND
THRMTRIP#
20
SMBALRT#
GPI1
22
SUS_S4#
SUS_STAT#
24
GPI0
GPI2
26
SUS_S5#
WDTRIG
28
THRM#
GPI3
30
PCI_M66EN
BATLOW#
32
WAKE1#
PEG_ENABLE#
34
PEG_LANE_RV#
KBINH#
36
SYS_RESET#
GND
38
GND
PWBTN#
40
PWR_OK
Page 27
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