33.2 Features

The following are key features of the PORT module:

• Selectable input and output configuration for each individual pin
• Software-controlled multiplexing of peripheral functions on I/O pins
• Flexible pin configuration through a dedicated Pin Configuration register
• Configurable output driver:
  • Totem-pole (push-pull)
  • Slew rate limit
  • Open drain
• Configurable input buffer and pull settings:
  • Internal pull-up or pull-down options
  • Input sampling criteria
  • Input buffer can be disabled if not needed for lower power consumption
• Input event:
  • Up to four input event pins for each PORT group
  • Set, Clear, Toggle event actions for each event input on output value of a pin
  • Can be output to pin