23.3.4 Events

The TCD can generate the events described in the following table:

Table 23-8. Event Generators in TCD
Generator Name		Description	Event Type	Generating Clock Domain	Length of Event
Peripheral	Event	Description	Event Type	Generating Clock Domain	Length of Event
TCDn	CMPBCLR	The counter matches CMPBCLR	Pulse	CLK_TCD	One CLK_TCD_CNT period
	CMPASET	The counter matches CMPASET
	CMPBSET	The counter matches CMPBSET
	PROGEV	Programmable event output⁽¹⁾			One CLK_TCD_SYNC period

Note:

The user can select the trigger and all the compare matches (including CMPACLR). Also, it is possible to delay the output event from 0 to 255 TCD delay cycles.

The three events based on the counter match directly generate event strobes that last for one clock cycle on the TCD counter clock. The programmable output event generates an event strobe that lasts for one clock cycle on the TCD synchronizer clock.

The TCD can receive the events described in the following table:

Table 23-9. Event Users and Available Event Actions in TCD
User Name		Description	Input Detection	Async/Sync
Peripheral	Input	Description	Input Detection	Async/Sync
TCDn	Input A/Input B	Stop the output, jump to the opposite compare cycle and wait	Level	Both
		Stop the output, execute the opposite compare cycle and wait
		Stop the output, execute the opposite compare cycle while the Fault is active
		Stop all outputs, maintain the frequency
		Stop all outputs, execute dead-time while the Fault is active
		Stop all outputs, jump to the next compare cycle and wait
		Stop all outputs, wait for software action
		Stop the output on the edge, jump to the next compare cycle	Edge
		Stop the output on the edge, maintain the frequency	Edge
		Stop the output at level, maintain the frequency	Level

Input A and Input B are TCD event users that detect and act upon the input events. Additional information about input events and how to configure them can be found in the TCD Inputs section. Refer to the EVSYS - Event System section for more details regarding event types and Event System configuration.