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This document contains complete and detailed description of all modules included in
the Atmel
®
AVR
®
XMEGA
®
B microcontroller family. The Atmel AVR XMEGA B is a
family of low-power, high-performance, and peripheral-rich CMOS 8/16-bit microcon-
trollers based on the AVR enhanced RISC architecture. The available Atmel AVR
XMEGA B modules described in this manual are:
•
Atmel AVR CPU
• Memories
• DMA - Direct memory access controller
• Event system
• System clock and clock options
• Power management and sleep modes
• System control and reset
• 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
• USB - Universial 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
• LCD - Liquid Crystal Display
• ADC - Analog-to-digital 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
8291A- AVR-10/11
8-bit Atmel
XMEGA B
Microcontroller
XMEGA B
MANUAL
