21.1.6.8 Capture Mode

This mode captures the timer value based on a rising or falling edge on the window input and triggers an interrupt. This mimics the capture feature of a CCP module. The timer begins incrementing upon the SMTxGO bit being set, and updates the value of the SMTxCPR register on each rising edge of the Window signal, and updates the value of the SMTxCPW register on each falling edge of the Window signal. The timer is not reset by any hardware conditions in this mode and must be reset by software, if desired. See the figures below.

Figure 21-15. Capture Mode, Repeat Acquisition Timing Diagram
Figure 21-16. Capture Mode, Single Acquisition Timing Diagram