Datasheet

552
32133D–11/2011
UC3D
• ACPA: RA Compare Effect on TIOA
•WAVE
1: Waveform mode is enabled.
0: Waveform mode is disabled (Capture mode is enabled).
• WAVSEL: Waveform Selection
• ENETRG: External Event Trigger Enable
1: The external event resets the counter and starts the counter clock.
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.
• 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 subse-
quently no IRQs
.
• EEVTEDG: External Event Edge Selection
• CPCDIS: Counter Clock Disable with RC Compare
1: Counter clock is disabled when counter reaches RC.
0: Counter clock is not disabled when counter reaches RC.
ACPA Effect
0 none
1set
2clear
3 toggle
WAVSEL Effect
0 UP mode without automatic trigger on RC Compare
1 UPDOWN mode without automatic trigger on RC Compare
2 UP mode with automatic trigger on RC Compare
3 UPDOWN mode with automatic trigger on RC Compare
EEVT Signal selected as external event TIOB Direction
0 TIOB input
(1)
1 XC0 output
2 XC1 output
3 XC2 output
EEVTEDG Edge
0none
1 rising edge
2 falling edge
3 each edge