Atmel ARM-based processors

Atmel's AT91SAM Smart ARM-based microcontrollers are based on the 32-bit RISC processor architecture from ARM. They include embedded Flash and SRAM memories together with a number of peripherals and standard communications/networking interfaces. This qualifies them as system on chip devices.

External interfaces include USB, CAN, Ethernet, SPI, USART and ADC. A DMA controller provides direct channels between external interfaces and memories, increasing data throughput with minimal processor intervention.

Peripherals include counter/timers, power-on reset generators, voltage regulators and and advanced interrupt controller. This enhances the real time performance of the processor. A power management controller keeps power consumption to a minimum by powering down unused peripherals and interfaces, and enabling the processor to be put in standby mode.