UCard中动态地址映射的实现方法研究  

Research on the Implementation of Dynamic Address Mapping in UCard

作　　者：曹计昌[1] 邱鹏[1] 张斌[1] 

机构地区：[1]华中科技大学计算机科学与技术学院,湖北武汉430074

出　　处：《计算机工程与科学》2006年第1期119-121,134,共4页Computer Engineering & Science

摘　　要：本文根据智能卡应用的现状和发展趋势,分析目前解决方法存在的问题,提出了一种新的智能卡模型?UCa-rd。通过分析其核心的地址映射问题,给出了基于块选以及基于可编程逻辑器件的两类方法,分别针对其实现,做了详细的分析和研究,指出了其中的关键技术和各自的优缺点。对前一种方法进行了数学推导,并给出了实现范例;对后一种方法给出了原理图和伪码表示,采用VHDL语言进行了仿真实验,并取得了如期的效果。According to the status quo and trend of Smart Card applications, the problems of current solutions are analyzed in this paper, and then a new model of Smart Card, UCard, is presented. After analyzing its kernel address mapping, we give two methods of implementation, one is based on block choice, and the other is based on programmable logic devices. Considering their implementations,we give a detailed analysis and research, the kernel technology and advantages/disadvantages of each one. The mathematical reasoning of the first method is done,and an example is given. For the second one, the principle chart and pseudo code are given, and it is implemented by VHDL, and the anticipant result is achieved from the simulation.

关 键 词：智能卡 UCARD COS 动态地址映射 

分 类 号：TP333[自动化与计算机技术—计算机系统结构]