Advantech som-4450 cpu system on module som-4450 etx User Manual
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SOM-4450 User's Manual
A.1 Programming the watchdog timer
To program the watchdog timer, you must write a program which writes
I/O port address 443 (hex). The output data is a value of time interval.
The value range is from 01 (hex) to 3E (hex), and the related time
interval is 1 sec. to 62 sec.
I/O port address 443 (hex). The output data is a value of time interval.
The value range is from 01 (hex) to 3E (hex), and the related time
interval is 1 sec. to 62 sec.
Data
Time Interval
01
1 sec.
02
2 sec.
03
3 sec.
04
4 sec.
• •
• •
• •
3E
62 sec.