Datasheet

396
SAM7X Series [DATASHEET]
6120K–ATARM–11-Feb-14
• EEVTEDG: External Event Edge Selection
• EEVT: External Event Selection
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. In this case, the selected external event only controls the TIOA
output.
1 = The external event resets the counter and starts the counter clock.
• WAVSEL: Waveform Selection
•WAVE
0 = Waveform Mode is disabled (Capture Mode is enabled).
1 = Waveform Mode is enabled.
• ACPA: RA Compare Effect on TIOA
EEVTEDG Edge
0 0 none
0 1 rising edge
1 0 falling edge
1 1 each edge
EEVT Signal selected as external event TIOB Direction
0 0 TIOB input
(1)
0 1 XC0 output
1 0 XC1 output
1 1 XC2 output
WAVSEL Effect
0 0 UP mode without automatic trigger on RC Compare
1 0 UP mode with automatic trigger on RC Compare
0 1 UPDOWN mode without automatic trigger on RC Compare
1 1 UPDOWN mode with automatic trigger on RC Compare
ACPA Effect
0 0 none
0 1 set
1 0 clear
1 1 toggle