24.4.2.2 Event Users

Each event user has a dedicated multiplexer that controls which channel the event user is connected to. A user multiplexer receives the output of all event channels and must be configured to select one of these channels. The channel is selected by writing to the Channel bit field in the User x Channel Selection register (USER[x].CHANNEL).

The user multiplexer must always be configured before the channel.

The table below shows the available event users for this device family.

Table 24-1. Event Users
n	USER[n] Name		Description	Input Detection	Channel Path Type
	Peripheral	Input	Description	Input Detection	Channel Path Type
0-3	PORT	EV_n	PORT Event n Input	Level/Rising Edge	Asynchronous
4-5	DMAC	CH_n	Channel n	Level	Asynchronous Synchronous Resynchronized
6-8	TCn	EVU	TCn Event Input	Level	Asynchronous Synchronous Resynchronized
9-10	TCC0	EV_n	TCCn Event Input n	Level/Edge	Asynchronous
11-14	TCC0	MC_n	TCCn Capture event n	Rising Edge	Asynchronous
15	ADC	START	ADC conversion start	Edge	Asynchronous
16-19	CCL	LUTIN_n	CCL Look-up Table Input Value	Level	Asynchronous
20	MTB	START	MTB Start event	Rising Edge	Asynchronous Synchronous Resynchronized
21	MTB	STOP	MTB Stop event	Rising Edge	Asynchronous Synchronous Resynchronized