通信技术
通信技術
통신기술
COMMUNICATIONS TECHNOLOGY
2013年
2期
38-41
,共4页
公共交换电话网络%手持式%低功耗%调制解调器
公共交換電話網絡%手持式%低功耗%調製解調器
공공교환전화망락%수지식%저공모%조제해조기
PSTN(Public Switched Telephone Network)%handheld%low-power consumption%MODEM(Modulator-Demodulator)
基于公共交换电话网络线路,采用低功耗微处理器ATMEGA128L和高性能低功耗调制解调芯片CMX869,设计了一种手持式低功耗调制解调器.简要介绍了设计目标、功能组成以及主要器件的性能特征,从硬件和软件两方面详细论述了低成本低功耗调制解调器的的设计方案,给出了系统的硬件结构及软件流程图,并指出了手持式低功耗调制解调器在远距离数据传输系统中广泛的应用前景和价值.
基于公共交換電話網絡線路,採用低功耗微處理器ATMEGA128L和高性能低功耗調製解調芯片CMX869,設計瞭一種手持式低功耗調製解調器.簡要介紹瞭設計目標、功能組成以及主要器件的性能特徵,從硬件和軟件兩方麵詳細論述瞭低成本低功耗調製解調器的的設計方案,給齣瞭繫統的硬件結構及軟件流程圖,併指齣瞭手持式低功耗調製解調器在遠距離數據傳輸繫統中廣汎的應用前景和價值.
기우공공교환전화망락선로,채용저공모미처리기ATMEGA128L화고성능저공모조제해조심편CMX869,설계료일충수지식저공모조제해조기.간요개소료설계목표、공능조성이급주요기건적성능특정,종경건화연건량방면상세논술료저성본저공모조제해조기적적설계방안,급출료계통적경건결구급연건류정도,병지출료수지식저공모조제해조기재원거리수거전수계통중엄범적응용전경화개치.
@@@@Based on PSTN (Public Switched Telephone Network) lines, and with ATMEGA128L microprocessor of low power consumption and CMC869 MODEM chip of high performance and low power consumption, a type of handheld and low-power consumption MODEM is designed. The paper briefly describes the design goals, functional components, performance indicators of princcipal devices, expounds from hardware and software the design of low-cost and low-power MODEM, and gives the hardware diagram and the program flow chart. It finally points out the application prospect and value of the handheld and low-power MODEM in the long-distance data transmission system.
