【摘要】 针对异步式通信系统,文中提出了一种基于高阻的信息到达检测(detectthearrivalofinformation)方法。当采用四步握手规约进行异步通信时,将高阻作为系统的初始状态(spacerstate)可以在不增加异步总线宽度k的情况下,检测被传送的信息是否到达接收器。设计了实现该方法的逻辑电路,其复杂度为O(k),且经仿真实验证明是可行的。该方法还将信息到达检测与差错控制分离,简化了差错控制设计更多还原

【Abstract】 A method based on high impedance for detecting the arrival of information in an asynchronous communication system is proposed in this paper. If the communication in an asynchronous system is accomplished by the four-phase handshake protocol, we can detect when the information transmitted from the sender arrives in the receiver without increasing the width k of the asynchronous bus by taking high impedance as the initial state (spacer state). A logical circuit with hardware complexity O(k) is obtained. The method separates error controlling from detecting the arrival of information, and simplifies the design of error controlling.更多还原