COMMELL LP-173 - Manual (Page 30)

LP-173 User’s Manual
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output and TTL-level input .
1. Output： Open-drain , Most applications need use an external pull-up resistor .
2. Input： TTL-level.
DC characteristics:
Connector: CN_DIO
Type: 12-pin (6 x 2) header (pitch = 2.0mm)
Pin Description Pin Description
1 Ground 2 Ground
3 GPIO0 4 GPIO4
5 GPIO1 6 GPIO5
7 GPIO2 8 GPIO6
9 GPIO3 10 GPIO7
11 5V 12 12V
Appendix B <Flash BIOS>
B.1 BIOS Auto Flash Tool
The board is based on Phoenix BIOS and can be updated easily by the BIOS auto
flash tool. You can download the tool online at the address below:
http://www.phoenix.com/en/home/
http://www.commell.com.tw/Support/Support_SBC.htm
B.2 Flash Method
1.Extract the zip file(re-flash tool and BIOS file) to root of the USB flash
drive.
2.Insert your USB flash drive in USB port of the board and power
on the system.
5V TTL-level Input Pin
Parameter Sym Min Typ Max Unit Conditions
Input Low Voltage V
IL
0.8 V
Input High Voltage V
IH
2.0 V
Input High Leakage I
LIH
+10 μA V
IN
= 3.3V
Input Low Leakage I
LIL
-10 μA V
IN
= 0V
Open-drain output pin with 12-mA sink capability
Output Low Voltage V
OL
0.4 V I
OL
= 12 mA