Datasheet

667
SAM9N12/SAM9CN11/SAM9CN12 [DATASHEET]
11063K–ATARM–05-Nov-13
• EEVTEDG: External Event Edg e Selection
• EEVT: External Event Selection
Signal selected as external event.
Note: 1. If TIOB is chosen as the external event signal, it is configured as an input and no longer generates waveforms and
subsequently no IRQs.
• ENETRG: External Event Trigger Enable
0: The external event has no effect on the counter and its clock.
1: The external event resets the counter and starts the counter clock.
Note: Whatever the value programmed in ENETRG, the selected external event only controls the TIOA output and TIOB
if not used as an input (a trigger event input or other input used).
• WAVSEL: Waveform Selection
• WAVE: Waveform Mode
0: Waveform Mode is disabled (Capture Mode is enabled).
1: Waveform Mode is enabled.
• ACPA: RA Compare Effect on TIOA
Value Name Description
0NONE None
1 RISING Rising edge
2 FALLING Falling edge
3 EDGE Each edge
Value Name Description TIOB Direction
0 TIOB TIOB
(1)
Input
1 XC0 XC0 Output
2 XC1 XC1 Output
3 XC2 XC2 Output
Value Name Description
0 UP UP mode without automatic trigger on RC Compare
1 UPDOWN UPDOWN mode without automatic trigger on RC Compare
2 UP_RC UP mode with automatic trigger on RC Compare
3 UPDOWN_RC UPDOWN mode with automatic trigger on RC Compare
Value Name Description
0NONE None
1 SET Set
2 CLEAR Clear
3 TOGGLE Toggle