Watch dog timer in MC9S08AC60

[Richard777]

Hi guys, a little questions, why watch dog timer have also a internal 1KHz Clock source ?

Thanks in advance !

[peg]

Hi Richard,

This allows the watchdog to keep counting while the main clock may have issues.
This might then trip the watchdog.

[Richard777]

Hi Peg, thanks for your responce. I have a little doubt, what means is "the main clock may have issues" ?

Thanks !