Hello all, A colleague of mine is dealing with a problem: he seems to be missing edge triggered interrupts. I checked the code but I couldn’t find long periods during which IEN or for that matter the respective control registers IE flags are disabled. So I am considering the integrity of the signals themselves. I had a look at the electrical properties of the XC167 but I didn't manage to find minimum/maximum interrupt rise/fall time, interrupt hold time, etc. Can you help me find this information? Thanks in advance