利用8251扩展单片机通信接口电路的方法与编程

THE EXTENSION METHOD OF THE SINGLE CHIP MICROCOMPUTER COMMUNICATION INTERFACEBY MEANS OF 8251 AND IT'S RELATED PROGRAMMING

本文以 8 0 3 1单片机为例 ,介绍 82 1 5 A可编程串行接口芯片与单片机之间的一种连接电路的方法 ,与其他接口电路不同之处在于该电路可以方便地选择各种常用的标准波特率进行串行数据通信 .并通过实例描述了 82 5 1

Taking 8031 single chip microcomputer as an example, the method of connection between 8251A programmmable serial communication interface and the single chip microcomputer is introduced. The highlight of this method is the standard baud rate flexible selection of the serial communication and the serial communication interruption programming is explained though an example.