8.7.6.14 Synchronization with PWM

The inputs TIOAx/TIOBx can be bypassed, and thus channel trigger/capture events can be directly driven by the independent PWM module.

PWM comparator outputs (internal signals without dead-time insertion - OCx), respectively source of the PWMH/L[2:0] outputs, are routed to the internal TC inputs. These specific TC inputs are multiplexed with TIOA/B input signal to drive the internal trigger/capture events.

The selection is made in the Extended Mode register (TC_EMR) fields TRIGSRCA and TRIGSRCB (see TC_EMRx).

Each channel of the TC module can be synchronized by a different PWM channel as described in the following figure.

Figure 8-228. Synchronization with PWM

Note: This figure provides pin names of the first instance of a Timer Counter block (i.e., instance TC0). For any subsequent instances, the signal numbering increments. For example, "TIOA3-TIOA5” and "TIOB3-TIOB5” are the external IO pins of a second Timer Counter block (i.e., instance TC1).