at91sam9263 ATMEL Corporation, at91sam9263 Datasheet - Page 646

• Manufacturer Part Number: at91sam9263
• Description: At91 Arm Thumb Microcontrollers
• Manufacturer: ATMEL Corporation

• EEVTEDG: External Event Edge Selection
• EEVT: External Event Selection
Note:
• 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 = 1
0 = Waveform Mode is disabled (Capture Mode is enabled).
1 = Waveform Mode is enabled.
• ACPA: RA Compare Effect on TIOA
646
0
0
1
1
0
0
1
1
0
1
0
1
0
0
1
1
1. If TIOB is chosen as the external event signal, it is configured as an input and no longer generates waveforms and subse-
EEVTEDG
WAVSEL
AT91SAM9263 Preliminary
EEVT
ACPA
quently no IRQs.
0
1
0
1
0
1
0
1
0
0
1
1
0
1
0
1
Edge
none
rising edge
falling edge
each edge
Signal selected as external event
TIOB
XC0
XC1
XC2
Effect
UP mode without automatic trigger on RC Compare
UP mode with automatic trigger on RC Compare
UPDOWN mode without automatic trigger on RC Compare
UPDOWN mode with automatic trigger on RC Compare
Effect
none
set
clear
toggle
input
TIOB Direction
output
output
output
(1)
6249D–ATARM–20-Dec-07