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)