AN2641 datasheet(1/37 Pages) STMICROELECTRONICS

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AN2641 Datasheet(PDF) 1 Page - STMicroelectronics

Part #	AN2641

Description	Using the color LCD controller

PDF	37 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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1 / 37 page

October 2009

Doc ID 14027 Rev 1

1/37

AN2641

Application note

Using the color LCD controller (CLCD)

in the SPEAr embedded MPU family

Introduction

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

CPU core. Several members the SPEAr MPU family have an embedded ARM PL-110 Color-

LCD controller (CLCD). This Application Note describes how to configure and operate any

type of color LCD with the CLCD controller and provides application developers with

troubleshooting information on common integration issues.

Color display devices play an important role in any embedded system, since usually

displays are the most visible output devices.

In SPEAr, the CLCD is connected internally to the AHB bus and acts as a bus master-slave

module. The CLCD performs translation of pixel-coded data into the required formats and

timings to drive a variety of single/dual mono and color STN as well as color TFT LCD

displays. The CLCD fetches the data for display from a frame buffer and uses its own

dedicated DMA controller to transfer the display data to the LCD panel.

www.st.com

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