Solution:

To use the watch dog timer of PCL-752, please follow the steps: 1, Enable the reset function of watch dog timer by writing 1 to register 03H bit 3 2, Set the alarm type of watch dog timer on register 43H bit 3 and bit 2. 3, Write the time out second in register 1DH, then the timer will start to work. 4, Write to BASE+1 to clear the timer. Attached is a simple example about how to read and write the register of PCL-752, for your reference.