Nova Natural NOVA-7820 VIA C3 Processor CPU Embedded Board Benutzerhandbuch

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One characteristic of digital circuit is its fast response to high or low signal.  

This kind of response is highly needed for harsh and critical industrial 

operating environment.  That’s why we design 4-bit digital inputs and 4-bit 

digital outputs on NOVA-7820. 

 

Digital Input and Output, generally, are control signals.  You can use these 

signals to control external devices that needs On/Off circuit or TTL devices.  

We provide "BIOS Call" for DIO reading. 

 

READ WRITE 

Bit0 DIN0 Bit0 DO0 
Bit1 DIN1 Bit1 DO1 
Bit2 DIN2 Bit2 DO2 
Bit3 DIN3 Bit3 DO3 

 

•  CN45: Digital I/O 

 

1 GROUND 

2 VCC5V 

3 DO3 

4 DO2 

5 DO1 

6 DO0 

7 DIN3 

8 DIN2 

9 DIN1 

10 DIN0