This document contains complete and detailed description of all modules included in
the Atmel®AVR®XMEGA®AU microcontroller family. The Atmel AVR XMEGA AU is a
family of low-power, high-performance, and peripheral-rich CMOS 8/16-bit
microcontrollers based on the AVR enhanced RISC architecture. The available Atmel
AVR XMEGA AU modules described in this manual are:
Atmel AVR CPU
Memories
DMAC - Direct memory access controller
Event system
System clock and clock options
Power management and sleep modes
System control and reset
Battery backup system
WDT - Watchdog timer
Interrupts and programmable multilevel interrupt controller
PORT - I/O ports
TC - 16-bit timer/counters
AWeX - Advanced waveform extension
Hi-Res - High resolution extension
RTC - Real-time counter
RTC32 - 32-bit real-time counter
USB - Universal serial bus interface
TWI - Two-wire serial interface
SPI - Serial peripheral interface
USART - Universal synchronous and asynchronous serial receiver and transmitter
IRCOM - Infrared communication module
AES and DES cryptographic engine
CRC - Cyclic redundancy check
EBI - External bus interface
ADC - Analog-to-digital converter
DAC - Digital-to-analog converter
AC - Analog comparator
IEEE 1149.1 JTAG interface
PDI - Program and debug interface
Memory programming
Peripheral address map
Register summary
Interrupt vector summary
Instruction set summary
