AN3123 datasheet(1/30 Pages) STMICROELECTRONICS

Part #	AN3123

Description	Using the UART interfaces in the SPEAr embedded MPU family

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

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March 2012

Doc ID 16862 Rev 2

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AN3123

Application note

Using the UART interfaces in the SPEAr embedded MPU family

Introduction

The SPEAr embedded MPU family is a family of configurable MPUs, based on the ARM926

CPU core. Each member of the SPEAr MPU family has one or more embedded ARM PL011

UARTs for asynchronous communications. This application note describes how to configure

the UART and transmit and receive data.

A Linux driver is available in the SPEAr Linux support package (LSP), refer to the SPEAR

Linux support package (LSP) user manual (UM0851) for a description of how to use this

driver.

Section 10 of this application note describes an OS independent hardware abstraction layer

(HAL) for the SPEAr UART which you can use as a starting point for developing your own

HAL code.

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