也许人们在某些教科书中见过“有限状态机”(FSM)的框图,但很可能没有人把它用于实际场合(图1).对于少数不熟悉FSM的人来说,FSM可以假设成是一个有限状态数的装丘.它的每一个状态都包含FSM某一特定条件的完整描述.FSM只能根据状态机所处状态以及输入从状态转移到状态.简单的FSM用EPROM构成,而 Perhaps some people have seen in some textbooks the finite state machine (FSM) block diagram, but most likely no one will use it for practical purposes (Figure 1) .For a few people who are not familiar with FSM, FSM can be assumed to be Is a finite number of states, each of which contains a complete description of a particular condition of the FSM. The FSM can only be based on the state of the state machine and the state transition from input to state. A simple FSM consists of an EPROM,