.. SPDX-License-Identifier: Apache-2.0
.. Copyright 2022 Martin Schröder <info@swedishembedded.com>
   Consulting: https://swedishembedded.com/go
   Training: https://swedishembedded.com/tag/training

Main Features
*************

The chip supports following main functions:

- **16 GPIO Pins**: with configurable pullups when in input mode.

- **Pin interrupt support**: with comparison either against a preset value or
  against the previous value of the input pin. Two interrupt pins are available
  that can be configured in either active-low or active-high mode.

- **SPI communication**: up to 10Mhz clock speed.