ATXMEGA256A3B_09 ATMEL [ATMEL Corporation], ATXMEGA256A3B_09 Datasheet - Page 33
ATXMEGA256A3B_09
Manufacturer Part Number
ATXMEGA256A3B_09
Description
8/16-bit XMEGA A3B Microcontroller
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.ATXMEGA256A3B_09.pdf
(102 pages)
- Current page: 33 of 102
- Download datasheet (4Mb)
16. T/C - 16-bit Timer/Counter with PWM
16.1
16.2
8116F–AVR–09/09
Features
Overview
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XMEGA A3B has seven Timer/Counters, four Timer/Counter 0 and three Timer/Counter 1. The
difference between them is that Timer/Counter 0 has four Compare/Capture channels, while
Timer/Counter 1 has two Compare/Capture channels.
The Timer/Counters (T/C) are 16-bit and can count any clock, event or external input in the
microcontroller. A programmable prescaler is available to get a useful T/C resolution. Updates of
Timer and Compare registers are double buffered to ensure glitch free operation. Single slope
PWM, dual slope PWM and frequency generation waveforms can be generated using the Com-
pare Channels.
Through the Event System, any input pin or event in the microcontroller can be used to trigger
input capture, hence no dedicated pins are required for this. The input capture has a noise can-
celler to avoid incorrect capture of the T/C, and can be used to do frequency and pulse width
measurements.
A wide range of interrupt or event sources are available, including T/C Overflow, Compare
match and Capture for each Compare/Capture channel in the T/C.
PORTC, PORTD and PORTE each has one Timer/Counter 0 and one Timer/Counter1. PORTF
has one Timer/Counter 0. Notation of these are TCC0 (Time/Counter C0), TCC1, TCD0, TCD1,
TCE0, TCE1 and TCF0, respectively.
Seven 16-bit Timer/Counters
Four Compare or Capture (CC) Channels in Timer/Counter 0
Two Compare or Capture (CC) Channels in Timer/Counter 1
Double Buffered Timer Period Setting
Double Buffered Compare or Capture Channels
Waveform Generation:
Input Capture:
Event Counter with Direction Control
Timer Overflow and Timer Error Interrupts and Events
One Compare Match or Capture Interrupt and Event per CC Channel
Supports DMA Operation
Hi-Resolution Extension (Hi-Res)
Advanced Waveform Extension (AWEX)
– Four Timer/Counters of type 0
– Three Timer/Counters of type 1
– Single Slope Pulse Width Modulation
– Dual Slope Pulse Width Modulation
– Frequency Generation
– Input Capture with Noise Cancelling
– Frequency capture
– Pulse width capture
– 32-bit input capture
XMEGA A3B
33
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