CS302 Assignment No 4 Spring 2012 solution

Q1  State diagram of a Moore machine is given below; draw the next state table of this Moore machine (starting from state 101).

Present State                                                                Next State

Q2 Q1 Q0                                                                     Q2 Q1 Q0

101                                                                             100 100                                                                                   001 0 0 1                                                                                010 010                                                                                  101

This is the table of Next-State Table for a 3-bit Up-Counter

Q2 Give the input tables for both 4 bit up counter and 4 bit down counter consisting of D type flip flops.