摘要： Intel公司生产的8255A可编程并行接口芯片，可应用于交通灯管理系统。文章针对开发的交通灯管理模拟接口卡，给出了具体的设计方案。该接口卡设计简单、功能齐全，界面友好，软件开发规范．可通过计算机直接进行控制。

关键词: 交通灯, 并行接口, 工作方式

Abstract: Progranunable para1lel interface chip-8255A produced by Intel can be applied to traffic light managing system. Based on traffc managing simulative interface card developed, specific design was proposed in this paper. The interface card is shoply designed and has overall function. Its design of software is standard. Moreover, it can be controlled by computer.

中图分类号: 

• TP334