AN2710 Datasheet, PDF (1/30 Pages) STMicroelectronics – Safe GPIO port configuration in STR7xx devices

AN2710
Application note
Safe GPIO port configuration
in STR7xx devices
Introduction
The general purpose I/O (GPIO) ports of STR7xx devices are programmable by firmware in
several modes: input, output, alternate function, output open drain, output push-pull,
bidirectional weak push-pull and high impedance. It is possible to manage the analog input
mode as well.
This application note describes the best way of configuring the GPIO ports.
February 2008
Rev 1
1/30
www.st.com