Datasheet

Value Description
1
Incoming event x is enabled.
Bits 13,12 – TCINVx Timer/Counter Event x Invert Enable
This bit inverts the event x input.
Value Description
0
Input event source x is not inverted.
1
Input event source x 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 CNTSEL[1:0] 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 depend of CNTSEL[1:0] 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
BEGIN 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
BETWEEN An interrupt/event is generated between each counter cycle.
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 TC on event
0x2
DIR (asynch) Direction control
SAM D21 Family
TCC – Timer/Counter for Control Applications
© 2018 Microchip Technology Inc.
Datasheet Complete
DS40001882D-page 762