One shot mode is selected. If both capture circuits are enabled, then capture circuit 0 is armed first after CAPTCTRLB[ARMB] is set. Once a capture occurs, capture circuit 0 is disarmed and capture circuit 1 is armed. After capture circuit 1 performs a capture, it is disarmed and CAPTCTRLB[ARMB] is cleared. No further captures will be performed until CAPTCTRLB[ARMB] is set again.If only one of the capture circuits is enabled, then a single capture will occur on the enabled capture circuit and CAPTCTRLB[ARMB] is then cleared.