ATXMEGA128B3-AU ATMEL [ATMEL Corporation], ATXMEGA128B3-AU Datasheet - Page 35

• Manufacturer Part Number: ATXMEGA128B3-AU
• Description: 8/16-bit Atmel XMEGA B3 Microcontroller
• Manufacturer: ATMEL [ATMEL Corporation]

16. T/C – 16-bit Timer/Counter Type 0 and 1
16.1
16.2
8074B–AVR–02/12
Features
Overview
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Atmel AVR XMEGA B3 devices have a set of two flexible 16-bit Timer/Counters (TC). Their
capabilities include accurate program execution timing, frequency and waveform generation,
and input capture with time and frequency measurement of digital signals. Two timer/counters
can be cascaded to create a 32-bit timer/counter with optional 32-bit capture.
A timer/counter consists of a base counter and a set of compare or capture (CC) channels. The
base counter can be used to count clock cycles or events. It has direction control and period set-
ting that can be used for timing. The CC channels can be used together with the base counter to
do compare match control, frequency generation, and pulse width waveform modulation, as well
as various input capture operations. A timer/counter can be configured for either capture or com-
pare functions, but cannot perform both at the same time.
Two 16-bit timer/counters
32-bit Timer/Counter support by cascading two timer/counters
Up to four compare or capture (CC) channels
Double buffered timer period setting
Double buffered capture or compare channels
Waveform generation:
Input capture:
Timer overflow and error interrupts/events
One compare match or input capture interrupt/event per CC channel
Can be used with event system for:
Can be used with DMA and to trigger DMA transactions
High-resolution extension
Advanced waveform extension:
Event controlled fault protection for safe disabling of drivers
– One timer/counter of type 0
– One timer/counter of type 1
– Four CC channels for timer/counters of type 0
– Two CC channels for timer/counters of type 1
– Frequency generation
– Single-slope pulse width modulation
– Dual-slope pulse width modulation
– Input capture with noise cancelling
– Frequency capture
– Pulse width capture
– 32-bit input capture
– Quadrature decoding
– Count and direction control
– Capture
– Increases frequency and waveform resolution by 4x (2-bit) or 8x (3-bit)
– Low- and high-side output with programmable dead-time insertion (DTI)
XMEGA B3
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