esTc 设计中 Sequential Logic Sequential Logic if ,, 三,,, O utputs at a specified time are a function of the inputs at that time and at all preceding times All sequential circuits must include one or more registers e.g. State Machine, Counters, Shift Register and Controllers - LPM REPRESENTATION= LPM WIDTH= ONE INPUT IS CONSTANT= LPM AVALUE Outputs depends LPM ADD SUB on inputs and previous output a3.0] result[3. 0] Register is used to hold the previous value设计中心 Sequential Logic • Sequential Logic if – Outputs at a specified time are a function of the inputs at that time and at all preceding times – All sequential circuits must include one or more registers • e.g. State Machine, Counters, Shift Register and Controllers Outputs depends on inputs and previous output Register is used to hold the previous value