47.7.10 Event Control

Table 47-19. Register Bit Attribute Legend
Symbol	Description	Symbol	Description	Symbol	Description
R	Readable bit	HC	Cleared by Hardware	(Grey cell)	Unimplemented
W	Writable bit	HS	Set by Hardware	X	Bit is unknown at Reset
K	Write to clear	S	Software settable bit	—	—

Name:	EVCTRL
Offset:	0x20
Reset:	0x00000000
Property:	PAC Write-Protection, Enable-Protected


Bit	31	30	29	28	27	26	25	24
	MCEO7	MCEO6	MCEO5	MCEO4	MCEO3	MCEO2	MCEO1	MCEO0
Access	R/W	R/W	R/W	R/W	R/W	R/W	R/W	R/W
Reset	0	0	0	0	0	0	0	0


Bit	23	22	21	20	19	18	17	16
	MCEI7	MCEI6	MCEI5	MCEI4	MCEI3	MCEI2	MCEI1	MCEI0
Access	R/W	R/W	R/W	R/W	R/W	R/W	R/W	R/W
Reset	0	0	0	0	0	0	0	0


Bit	15	14	13	12	11	10	9	8
	TCEI1	TCEI0	TCINV1	TCINV0		CNTEO	TRGEO	OVFEO
Access	R/W	R/W	R/W	R/W		R/W	R/W	R/W
Reset	0	0	0	0		0	0	0


Bit	7	6	5	4	3	2	1	0
	CNTSEL[1:0]		EVACT1[2:0]			EVACT0[2:0]
Access	R/W	R/W	R/W	R/W	R/W	R/W	R/W	R/W
Reset	0	0	0	0	0	0	0	0

Bits 24, 25, 26, 27, 28, 29, 30, 31 – MCEOy Match or Capture Channel y Event Output Enable

These bits control if the Match/capture event on channel y is enabled and will be generated for every match or capture.

Value	Description
0	Match/capture y event is disabled and will not be generated.
1	Match/capture y event is enabled and will be generated for every compare/capture on channel y.

Bits 16, 17, 18, 19, 20, 21, 22, 23 – MCEIy Fault A/B or Capture Channel y Event Input Enable

These bits indicate if the Match/capture y incoming event is enabled

These bits are used to enable Fault A/B or capture input events to the CCy channel of TCCC.

Value	Description
0	Incoming events are disabled.
1	Incoming events are enabled.

Bits 14, 15 – TCEIn Timer/Counter Event Input n Enable

This bit is used to enable input event n to the TCC.

Value	Description
0	Incoming event n is disabled.
1	Incoming event n is enabled.

Bits 12, 13 – TCINVn Timer/Counter Event n Invert Enable

This bit inverts the event n input.

Value	Description
0	Input event source n is not inverted.
1	Input event source n is inverted.

Bit 10 – CNTEO Timer/Counter Event Output Enable

This bit is used to enable the counter cycle event. When enabled, an event will be generated on begin or end of counter cycle depending of on EVCTRL.CNTSEL(EVCTRL<7:6>) settings.

Value	Description
0	Counter cycle output event is disabled and will not be generated.
1	Counter cycle output event is enabled and will be generated depending on EVCTRL.CNTSEL(EVCTRL<7:6>) value.

Bit 9 – TRGEO Retrigger Event Output Enable

This bit is used to enable the counter retrigger event. When enabled, an event will be generated when the counter retriggers operation.

Value	Description
0	Counter retrigger event is disabled and will not be generated.
1	Counter retrigger event is enabled and will be generated for every counter retrigger.

Bit 8 – OVFEO Overflow/Underflow Event Output Enable

This bit is used to enable the overflow/underflow event. When enabled an event will be generated when the counter reaches the TOP or the ZERO value.

Value	Description
0	Overflow/underflow counter event is disabled and will not be generated.
1	Overflow/underflow counter event is enabled and will be generated for every counter overflow/underflow.

Bits 7:6 – CNTSEL[1:0] Timer/Counter Interrupt and Event Output Selection

These bits define on which part of the counter cycle the counter event output is generated.

Value	Name	Description
0x0	START	An interrupt/event is generated at begin of each counter cycle
0x1	END	An interrupt/event is generated at end of each counter cycle
0x2	-	Reserved
0x3	BOUNDARY	An interrupt/event is generated at begin of first counter cycle, and end of last counter cycle.

Bits 5:3 – EVACT1[2:0] Timer/Counter Event Input 1 Action

These bits define the action the TCC will perform on TCE1 event input.

Value	Name	Description
0x0	OFF	Event action disabled.
0x1	RETRIGGER	Start, restart or re-trigger TCC on event
0x2	DIR (asynch)	Direction control
0x3	STOP	Stop TCC on event
0x4	DEC	Decrement TCC on event
0x5	-	Reserved
0x6	PWP	Period captured into CC1 Pulse Width on CC0
0x7	FAULT	Non-recoverable Fault

Bits 2:0 – EVACT0[2:0] Timer/Counter Event Input 0 Action

These bits define the action the TCC will perform on TCE0 event input 0.

Value	Name	Description
0x0	OFF	Event action disabled.
0x1	RETRIGGER	Start, restart or re-trigger TCC on event
0x2	COUNTEV	Count on event.
0x3	START	Start TCC on event
0x4	INC	Increment TCC on EVENT
0x5	COUNT (async)	Count on active state of asynchronous event
0x6	STAMP	Capture overflow times (Max value)
0x7	FAULT	Non-recoverable Fault