IEEE1284并口协议分析  

Analysis of IEEE 1284 parallel port standard

作　　者：徐宏慧[1] 高有行[1] 

机构地区：[1]西安电子科技大学计算机外部设备研究所,西安710071

出　　处：《计算机工程与设计》2002年第9期11-14,共4页Computer Engineering and Design

摘　　要：介绍了 IEEE 1284协议出现的背景、此协议相对于传统的Centronics并行接口的优点及其应用场合,介绍了IEEE1284具有的几种通信模式,分析了IEEE1284几种模式之间的转换过程,详细解释各种模式下数据传输以及传输改变方向时的握手过程,最后说明数据传输完成后的终止过程。该文对于IEEE1284并行接口的设计和编程具有一定参考价值。The paper explains the background of IEEE 1284 standard first, and the advantages of the standard over traditional Centronics parallel interface, and where the standard can be used. Following these, the paper introduces the modes of IEEE 1284 standard, and analyses the switching procedures of several modes. Then it illustrates the handshaking procedures in the data transfer phases and direction changing of these modes. At last, it explains termination procedure, which takes place after data transfer has been completed. The paper is some useful for designing and programming of IEEE 1284 parallel port.

关 键 词：通信协议 IEEE1284协议 并口协议分析 兼容模式 ECP模式 数据传输速率 

分 类 号：TN915.04[电子电信—通信与信息系统]