27.1.6.11 Windowed Counter Mode
This mode counts rising edges of the SMT_signal between rising edges of the SMT_window input. Beginning with the rising edge of the SMT_window input, the SMTxTMR register is incremented for every rising edge of the SMT_signal input. The SMTxTMR register value is written to the SMTxCPW register on the falling edge of the SMT_window input and the SMTxTMR register continues to increment. The SMTxTMR register value is written to the SMTxCPR register, then reset on each rising edge of the SMT_window input after the first. Refer to the figures below.