AN2710 datasheet(1/30 Pages) STMICROELECTRONICS

Part #	AN2710

Description	Safe GPIO port configuration in STR7xx devices

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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1 / 30 page

February 2008

Rev 1

1/30

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.

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