good answer ! it's not a good one for those of us that are less 'code gifted'. but anyway good work for the design.i would have to study how i can get it to work in code.

I was wondering why didn't you use a open drain comparator and you could have or-ed your outputs using only one MCU pin ?

This guy has actually tested the mcp16251 and posted his findings on YouTube https://m.youtube.com/watch?v=O5o6JUjz6Yc