40-bit shifter RISC-like register and instruction model for ease of programming and compiler-friendly support Advanced debug, trace, and performance monitoring Accepts a wide range of supply voltages for internal and I/O operations. See Operating Conditions on Page 18 Off-chip voltage regulator interface 64-lead (9 mm × 9 mm) LFCSP package MEMORY 68K bytes of core-accessible memory: (See Table 1 on Page 3 for L1 and L3 memory size details) 64K byte L1 instruction ROM Flexible booting options from internal L1 ROM and SPI memory or from host devices including SPI, PPI, and UART Memory management unit providing memory protection

This document contains complete and detailed description of all modules included in the Atmel ® AVR ® XMEGA ® C microcontroller family. The Atmel AVR XMEGA C 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 C modules described in this manual are:

Dynamic systems in DNA nanotechnology are often pro-grammed using a chemical reaction network (CRN) model as an intermediate level of abstraction. In this paper, we design and analyze a CRN model of a watchdog timer, a de-vice commonly used to monitor the health of a safety critical system. Our

, an evolution of the watchdog timer that can place a hard upper bound on the amount of processor time that guest code may consume. Unlike its predecessor, it is resistant to malicious attacks from the software it controls; but its structure remains extremely simple and maps to very frugal hardware resources

Abstract not found

– 130 powerful instructions – most single clock cycle execution – 32 × 8 general purpose working registers – Fully static operation – Up to 16MIPS throughput at16MHz (Atmel ATmega169A/169PA/649A/649P) – Up to 20 MIPS throughput at 20MHz (Atmel ATmega329A/329PA/3290A/3290PA/6490A/6490P) – On-chip 2-cycle multiplier • High endurance non-volatile memory segments – In-system self-programmable flash program memory

“Well designed watchdog timers fire off every day, quietly saving systems and lives without the esteem offered to human heroes. ”- Jack Ganssle. No piece of software, save the very smallest, is free from bugs. The application could get stuck in endless loops. Unexpected error codes could cause

– Two 8-bit Timer/Counters with Separate Prescalers and Compare Modes

– One 16-bit Timer/Counter with Separate Prescaler and Compare Mode – 12-bit Voltage ADC, Eight External and Two Internal ADC Inputs – High Resolution Coulomb Counter ADC for Current Measurements – TWI Serial Interface for SM-Bus

Abstract not found