16.5.2.4.1 Single Trigger Mode

The Single Trigger mode is the default trigger mode and is selected when TRGMOD[1:0] = 00. The Single Trigger mode is used when a PG timer should be started at the same time as or a time that is offset from another PG timer. This mode is also useful for creating a single PWM pulse, or creating a single delay based on an external event.

When operating in Single Trigger mode, the SOC trigger signal is used to start the PG timer cycle. When the SOC trigger is received, the timer will reset to ‘0’, then start counting. When the timer matches the local PER register and enough timer cycles have occurred to complete the PWM cycle, the timer will stop counting.

The PG timer will not start until another SOC trigger is received. If a timer cycle is currently in progress, any incoming SOC trigger pulses will be ignored. The entire timer cycle must complete before another SOC trigger can restart the timer. The trigger logic looks for a rising edge on the trigger signal.