The Output Driver can handle sufficient current to drive a single transistor, and this can provide the required current for the LED. The Watchdog Timer will reset the YKP1568VG5 when it has not been reloaded ( reset ) in time, because the program has run out of sequence ( endless loop, continuous IDLE mode, etc. ). During STOP mode the oscillator is halted, so then the Watchdog Timer is not running. |