COMMELL P4BWA - Manual (Page 30)

P4BWA User’s Manual
GPIO Interface 28
2.13 <GPIO & SMBUS interface>
The board provides a programmable 8-bit digital I/O interface, and one SMBus (System
management bus) interface for control panel application.
Connector: CN_DIO
Type: onboard 2 x 6-pin header, pitch=2.0mm
Pin Description Pin Description
1 Ground 2 Ground
3 GP10 4 GP14
5 GP11 6 GP15
7 GP12 8 GP16
9 GP13 10 GP17
11 VCC 12 +12V
Connector: CN_SMBUS
Type: 5-pin 2.54-pitch header
Pin Description
1 VCC
2 N/C
3 SMBDATA
4 SMBCLK
5 Ground
1
11
CN_DIO
2
12
SMBUS