串行数据检测器的设计

Study on Sequences Detector Design

分析了时序逻辑电路设计中的状态化简问题,指出了状态化简不会改变电路的逻辑功能,不可能使电路产生错误输出。讨论了串行数据检测器的米里型电路设计和摩尔型电路设计,提出了一种在输入数据稳定的区段进行检测、确定电路状态,在输入数据改换为下一位时输出状态信息,确保系统正常工作的米里型电路设计方法,这种方法对米里型电路的设计有通用性。

In this paper, the state reduction in sequential circuit design is analyzed. It points out that the state reduction cannot alter the circuit＇s behavior. The design of both Mealy and Moore model sequential circuits on sequences detector is discussed. Then, a method of designing Mealy model sequential circuits is presented, which detects input string and determines the next state of circuit when the input has stabilized, but gives the state of circuit when input changes, so that the circuit may work correctly. Such a method is applicable to general sequential circuits design.