SAM3S_14 Datasheet, PDF (757/1087 Pages) ATMEL Corporation – AT91SAM ARM-based Flash MCU

1 = counter clock is disabled when counter reaches RC.
• EEVTEDG: External Event Edge Selection
Value
0
1
2
3
Name
NONE
RISING
FALLING
EDGE
Description
None
Rising edge
Falling edge
Each edge
• EEVT: External Event Selection
Signal selected as external event.
Value
0
1
2
3
Name
TIOB
XC0
XC1
XC2
Description
TIOB⁽¹⁾
XC0
XC1
XC2
TIOB Direction
input
output
output
output
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.
• 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
Value
0
1
2
3
Name
UP
UPDOWN
UP_RC
UPDOWN_RC
Description
UP mode without automatic trigger on RC Compare
UPDOWN mode without automatic trigger on RC Compare
UP mode with automatic trigger on RC Compare
UPDOWN mode with automatic trigger on RC Compare
• WAVE: Waveform Mode
0 = Waveform Mode is disabled (Capture Mode is enabled).
1 = Waveform Mode is enabled.
• ACPA: RA Compare Effect on TIOA
Value
0
Name
NONE
Description
None
SAM3S [DATASHEET]
6500E–ATARM–11-Feb-13
757