I am using a timer FC1 with device TMP10 to generate a 2mS interrupt and it works fine. I now need to use a second counter (maybe FC2) to measure the time it takes for an external input to trigger the on-chip comparator. In the Comparator ISR I need to stop the timer and read the timer value (16-bit). In real time the comparator should trigger anywhere from a few 10s of uS to a few hundreds of uS. However, Component Inspector asks for a period/offset value, which I don't think I need. which timer and clock source should I use?