8.1 Features

  • 8-bit, high-performance AVR RISC CPU
    • 135 instructions
    • Hardware multiplier
  • 32 8-bit registers directly connected to the ALU
  • Stack in RAM
  • Stack pointer accessible in I/O memory space
  • Direct addressing of up to 64KB of unified memory
    • Entire Flash accessible with all LD/ST instructions
  • True 16/24-bit access to 16/24-bit I/O registers
  • Efficient support for 8-, 16-, and 32-bit arithmetic
  • Configuration Change Protection for system-critical features