21.1.6.5 Windowed Measurement Mode
This mode measures the duration of the window input (WSEL) to the SMT. It begins incrementing the timer on a rising edge of the window input, and updates the SMTxCPR register with the value of the timer and resets the timer on a second rising edge. See the figures below.
![](GUID-2B8B0E24-881F-4B74-B941-60E24D989930-low.png)
![](GUID-4DF89D99-A828-43EF-B071-64A030DE224C-low.png)