Quote Originally Posted by pedja089 View Post
Now I wrote INT in ASM.
The problem is that the device must be powered with battery for several years...
So INT must be as fastest as possible...
Depending on your application, a short wake period (Higher Fosc) may not translate into the lowest average power drain. Optimizing your code and the oscillator frequency (which may not be the shortest execution) are needed. Also while measuring current for the XLP devices try to keep the ambient temp similar. Changes in ambient temp results in current changes as I have experienced.