29.2 Features

  • Up to 8 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
  • Selectable secured or non-secured attribution for each individual external pin (SAM L11)