#cpu-core

ARM 5 and 9 MPUs, Atmel’s big iron microprocessors

Atmel is rightly famous for its AVR line of 8-bit Flash microcontrollers. But we also have “big iron” chips like the SAMA5 and SAM9 ARM-core microprocessors. A microcontroller has its own internal Flash memory. A microprocessor uses external memory, as much or as little as your application might need.

Hardware engineers have two big worries with any “big iron” microprocessor. First, they are in…