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。本文提出了逻辑加密存储卡SLE 4442在单片机系统中的一种最简单的应用方法,并采用SST 89E 564RD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SLE 4442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SLE 4442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SLE 4442逻辑加密存储卡的操作过程和SST 89E 564RD单片机的控制程序,并给出了对应的程序流程图。
At present,the IC card is a kind of intelligent card applying to visit controlling and electronic note extensively. 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,which is capable to read/write the logleally 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 has also been illustrated in the paper.
出处
《现代电子技术》
2005年第20期15-17,共3页
Modern Electronics Technique
