"How can i make a software disable of watchdog in the same assembly file that i enable it"

You can't, that's the idea, you must keep kicking it to keep it from biting you. The only disable is reset, it will not come alive till first access.

If you have a desperate need to disable the puppy - I would not know how such a need could exist - you can - at least with the P89... - use one of the PCA counters as a watchdog, that you can disable.

I am VERY curious, what kind of an application would want to disable the watchdog - that defeats the purpose of having one. Please respond

Erik