基于单片机的ic卡读写器.doc

摘 要 IC卡是目前广泛应用于访问控制和电子票据的一种智能卡。本文主要介绍了一种新型的IC卡读写终端的设计，IC卡读写终端是一个单片机嵌入式应用系统。论文从IC卡的国际标准入手，介绍了实现IC卡数据存储的控制方法，并以西门子公司的SLE4442型逻辑加密卡为基础．详细分析了单片机控制IC卡数据读写的软、硬件实现。 本文提出了逻辑加密存储卡SLE4442在单片机系统中的一种最简单的应用方法，并采用AT89C51单片机设计了一个简易接触式IC卡控制系统，该系统可以对逻辑加密存储卡SLE4442进行读写。配合不同的软件及外围扩展电路，该系统可以应用到电业管理、燃气收费等不同的行业。还介绍了SLE4442芯片的特点、存储器结构，以及该芯片与单片机的最基本连接，分析了SLE4442逻辑加密存储卡的操作过程和AT89C51单片机的控制程序，并给出了对应的程序流程图。 关键词：IC卡；接触式；读写终端 Abstract At present，the IC card is a kind of intelligent card applying to visit controlling and electronic note extensively．This paper has introduced the designing of a new type IC card read-write terminal mainly．The terminal is a MCU embedded application system．First of all，proceeding with the International Standard of IC cards，the paper has introduced the reading and writing technique of IC card data． On the base of SLE4442-a kind of smart card of security logic made by SIEMENS． The paper has specified the software and hardware realization of IC card data reading and writing． The article has provided a kind of simplest application method for IC card SLE4442 in the single chip computer system．And a simple control system for intelligent contact type IC card is presented with AT89C51，which is capable to read and write the logically encrypted memory card SLE4442．With some adaptations in software and peripheral circuits，the system could be easily used in various fields．Such as power charging system and gas charging system．The paper also has introduced the characteristic of the SLE4442 chip，the structure of storage，and the most essential connection between SLE442 chip and single chip processor．Moreover，the method how to use the system ，the problem of programming，and the flow chart of the system program of some interrelated commands have also been illustrated in the paper． Key words: IC card；contact type；read-write terminal 目录 1 绪论 1 1.1 IC卡技术的发展 1 1.2 IC卡分类及应用 1 1.3 IC卡技术的特点 2 1.4 IC卡的接口设备 3 1.5 IC卡国际标准和设计要求 3 1.5.1 IS07816-1，接触式集成电路卡的物理特性 4 1.5.2 IS07816-2，接触式集成电路卡的触点