7.1 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 64 KB of Unified Memory
  • Efficient Support for 8-, 16-, and 32-Bit Arithmetic
  • Configuration Change Protection for System-Critical Features
  • Native On-Chip Debugging (OCD) Support:
    • Two hardware breakpoints
    • Change of flow, interrupt, and software breakpoints
    • Run-time read-out of Stack Pointer (SP) register, Program Counter (PC), and Status Register (SREG)
    • Register file read- and writable in Stopped mode