VIA Mobile360 M820 User Manual
10
2.7 DIO Port
The VIA Mobile360 M820 is equipped with a DIO port located on the back panel. The DIO port offers a Digital
I/O communication interface to support 8-bit GPIO. The pinouts of the DIO port are show below.
Pin
Signal
1
GPO0
2
GPO1
3
GPO2
4
GPO3
5
GPI0
6
GPI1
7
GPI2
8
IGN
9
DIO_GND
Figure 12: DIO port diagram
Table 08: DIO port pinouts
2.8
Headphone and Mic-in Port
The VIA Mobile360 M820 is equipped with a Headphone and Mic-in port located on the back panel. The
Headphone and Mic-in port is for connecting external speakers such as a headphone or a microphone. The
pinouts of the Headphone and Mic-in port are shown below.
Pin
Signal
1
MIC1
2
Jack_det
3
HPH_GND_SENSE_CONN
4
CDC_HPH_R_CONN
5
CDC_HPH_L_CONN
Figure 13: Headphone and Mic-in port diagram
Table 09: Headphone and Mic-in port pinouts
2.9 COM Port
The VIA Mobile360 M820 is equipped with a COM port located on the back panel which supports TX/RX for
debugging. The pinouts of the COM port are shown below.
Pin
Signal
1
TX
2
RX
3
GND
4
+5V
5
+12V
Figure 14: COM port diagram
Table 10: COM port pinouts