三值模拟算法在逻辑电路竞争冒险检测中的应用

APPLICATION OF THE TRI-VALUES SIMULATION ALGORITHM INTO DETECTING RIVALSHIP HAZARD OF LOGIC CIRCUITS

:当一个逻辑门的几个输入端同时改变状态 ,并且其输出信号值依赖于输入信号跳变的次序时 ,就有可能导致瞬时出错 ,即潜在的冒险现象。本文分析了组合逻辑电路产生竞争冒险的原因 ,并在讨论传统的检测基础上 。

When a logic gate's several imports change state in the mean time,and it's output signals depend on the jumping order of the input signals,it will be apt to generate a momentary error,that is potential bazarh.This paper analyses the reasons for the combination logic circuits producing rivalship hazard.On the basis of discussing the traditional detection.It presents the tri-values simulation algorithm in detecting rivalship hazard of logic circuits.