CSE 2341                                 HOMEWORK ASSIGNMENT 6                         SPRING 1999

DUE: Wednesday, 4/28/99


 
                              1.   8.13 (b), (c), and (d) from Nelson

                            2.   8.18 from Nelson

                            3.   8.20 from Nelson

                            4.  8.29 from Nelson
                                5.  Construct the state diagram for a synchronous sequential circuit that detects invalid BCD characters
                    in a serial bit stream. Each BCD character is preceded by a 0 start bit and followed by a 1 stop bit.  The circuit
                    should produce an output of 1 in synch with the last bit of any invalid character. Also, if the bit following a valid
                    or invalid character is not a 1, an output of 1 should be produced. At all other times the output should be 0.
                    Assume the least significant bit of the BCD characters is transmitted first. Use a few states as possible in your
                    design.  How many flip-flops would it take to realize your state diagram?