摘要
本文介绍了一种对并行打印口扩展的新方法,使它具有并行、双向的数据端口,因而可以作为PC机与外设之间高速通讯的接口。详细讨论了扩展方法、工作原理,并给出了实例。
A new method to extend the function of parallel printer port is introduced. It makes the port possess bidirectional communication function,so it can be used as high-speed communication interface between PC and peripheral equipments. This paper discusses the extension method and the working principle. An example is given.
出处
《电气自动化》
北大核心
1999年第1期30-32,共3页
Electrical Automation
