中文摘要：

以异步电路的基本类型为基础,依据异步控制电路的基本描述机制将已有的异步电路设计方法划分为基于CSP的设计方法、基于Petri网的设计方法以及基于有限状态机的设计方法3类,并对这3类设计方法的优缺点进行比较;针对已有的逻辑综合实现技术与直接映射实现技术的优势与不足,提出了异步控制电路设计方法的发展趋势。

英文摘要：

Application of asynchronous circuits has become one of the most promising directions in circuit design because asynchronous circuits are free of clock skews.On the basis of analyzing all kinds of asynchronous circuits,the specification of asynchronous control circuits is summarized,the design methods of asynchronous control circuits is deeply demonstrated and their advantages and disadvantages are compared.Making full use of logic synthesis and direct mapping,an improved design cycle of asynchronous control circuits is also addressed.