16.1 Features

  • General purpose input and output pins with individual configuration
  • Output driver with configurable inverted I/O and pullup.
  • Input with interrupts and events:
    • Sense both edges
    • Sense rising edges
    • Sense falling edges
    • Sense low level
  • Asynchronous pin change sensing that can wake the device from all sleep modes
  • Efficient and safe access to PORT pins
    • Hardware read-modify-write through dedicated toggle/clear/set registers
    • Mapping of often-used PORT registers into bit-accessible I/O memory space (Virtual Ports)