Motorola MC68328 Informações Técnicas descarregar pdf (Página 11)

Introduction

FLEX Alphanumeric Chip MC68175 Interface

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1.1 INTRODUCTION

Combined with the Dragonball™ MC68328 microprocessor, FLEX™ One-way Stack

software and the FLEX Alphanumeric Chip Integrated Circuit (IC) MC68175 provide a

powerful solution for today’s and tomorrow’s personal portable communication

devices.

1.2 SCOPE

This application report describes the hardware and software interfaces between

the MC68328 (Dragonball) Microprocessor and the MC68175 (FLEX Alphanumeric

Chip) IC.

1.3 MC68328

The Motorola MC68328 (Dragonball) is a low-cost, low-power, highly integrated

microprocessor designed for consumer portable devices, such as PDAs, pagers, and

cellular phones. The Dragonball provides key features that are suitable for many

portable applications. Modules like the Real-Time Clock (RTC), LCD controller, pulse

width modulator, timers, master and slave Serial Peripheral Interface (SPI), Universal

Asynchronous Receiver Transmitter (UART) with infrared communications capability,

and the System Integration Module (SIM28) give product engineers the flexibility and

resources to design efficient and innovative products.

1.4 FLEX PROTOCOL

FLEX Protocol is the multispeed, high-performance paging protocol from Motorola that

is rapidly becoming the de facto paging standard, used by 70% of the world’s paging

service providers. The FLEX Protocol increases paging capability up to 10 times over

POCSAG, the previous paging protocol. Its synchronous communication capability with

the transmitter also enhances pager battery longevity.

Frees

cale Semiconductor,

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com

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Motorola MC68328 Informações Técnicas Página 11