AT91SAM7S32-AI ATMEL [ATMEL Corporation], AT91SAM7S32-AI Datasheet - Page 360
AT91SAM7S32-AI
Manufacturer Part Number
AT91SAM7S32-AI
Description
AT91 ARM Thumb-based Microcontrollers
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.AT91SAM7S32-AI.pdf
(446 pages)
- Current page: 360 of 446
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• 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
• ACPC: RC Compare Effect on TIOA
360
0
1
0
1
0
0
1
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 .
0
0
1
1
0
0
1
1
AT91SAM7S32 Preliminary
EEVTEDG
WAVSEL
ACPC
ACPA
EEVT
0
1
0
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
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
Edge
none
rising edge
falling edge
each edge
Signal selected as external event
TIOB
XC0
XC1
XC2
Effect
none
set
clear
toggle
Effect
none
set
clear
toggle
TIOB Direction
input
output
output
output
(1)
6071A–ATARM–28-Oct-04
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