AAEON TKS-P20-CV01 - Manual (Page 95)

E m b e d d e d B o x T K S - P 2 0 - C V 0 1
Appendix E Digital I/O Ports E-2
E.1 Electrical Specifications for Digital I/O Ports
Table 1 : Digital Input/Output Pin Electrical Specification
Input Threshold
Voltage
Output Voltage
Pin Type
Low High Low High
Note
DIO1 I/O 0.8 2.0 0 3.3
DIO2 I/O 0.8 2.0 0 3.3
DIO3 I/O 0.8 2.0 0 3.3
DIO4 I/O 0.8 2.0 0 3.3
Note: All DIO pins are 5V tolerance in input mode.
E.2 DIO Programming
TKS-P20-CV01 utilizes FINTEK F81801U chipset as its Digital I/O
controller. Below are the procedures to complete its configuration
and the AAEON initial DIO program is also attached based on
which you can develop customized program to fit your application.
There are three steps to complete the configuration setup: (1) Enter
the MB PnP Mode; (2) Modify the data of configuration registers; (3)
Exit the MB PnP Mode. Undesired result may occur if the MB PnP
Mode is not exited normally.