27.2 Features

  • Up to Four 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
  • Interrupt on High or Low Levels
  • Asynchronous Interrupts for Sleep Modes without Clock
  • Filtering of External Pins
  • Event Generation from EXTINTx