Table 43-1. Pulse counter input optionsLPTMR_CSR[TPS] Pulse counter input number Chip input00 0 TRGMUX output01 1 LPTMR_ALT1 pin10 2 LPTMR_ALT2 pin11 3 LPTMR_ALT3 pin43.2 IntroductionThe low-power timer (LPTMR) can be configured to operate as a time counter withoptional prescaler, or as a pulse counter with optional glitch filter, across all powermodes, including the low-leakage modes. It can also continue operating through mostsystem reset events, allowing it to be used as a time of day counter.43.2.1 FeaturesThe features of the LPTMR module include:• 16-bit time counter or pulse counter with compare• Optional interrupt can generate asynchronous wakeup from any low-power mode• Hardware trigger output• Counter supports free-running mode or reset on compare• Configurable clock source for prescaler/glitch filter• Configurable input source for pulse counter• Rising-edge or falling-edge43.2.2 Modes of operationThe following table describes the operation of the LPTMR module in various modes.Table 43-2. Modes of operationModes DescriptionRun The LPTMR operates normally.WaitThe LPTMR continues to operate normally andcan be configured to exit the low-power mode bygenerating an interrupt request.Table continues on the next page...IntroductionMWCT101xS Series Reference Manual, Rev. 3, 07/20191336 NXP Semiconductors
