26.2 Features

  • Up to 16 external pins (EXTINTx), plus one non-maskable pin (NMI)
  • Dedicated, Individually Maskable Interrupt for Each Pin
  • Interrupt on Rising, Falling, or Both Edges
  • Synchronous or Asynchronous Edge Detection mode
  • Interrupt pin Debouncing (Only available on SAM C20/C21 N variants)
  • Interrupt on High or Low Levels
  • Asynchronous Interrupts for Sleep Modes Without Clock
  • Filtering of External Pins
  • Event Generation from EXTINTx