Maurice Tutor

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Teaching Since: May 2017
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  • MCS,PHD
    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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  • Professor
    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 29 Jan 2018 My Price 8.00

BCD digits

A sequential circuit has a single input (X) and a single output (Z). The circuit examines each disjoint block of four inputs and determines whether the block is a valid BCD representation of a decimal digit; if not, Z = 1. State S0 is the initial state, and the circuit enters state S0 after the fourth input. The BCD digits are received least significant bit first. A Mealy state table can be constructed using a sufficient number of states to remember the last three inputs with the output produced when the fourth input bit of a block is received.

(a) Using the method indicated by Problem 15.13, construct a state table for this circuit.

(b) Reduce the state table to a minimum number of states.

(c) For each state in the reduced table, give the input pattern(s) remembered by that state.

Problem 15.13

A sequential circuit has a single input (X) and a single output (Z). The circuit examines each disjoint block of four inputs and determines whether the block is a valid BCD representation of a decimal digit; if not, Z = 1. State S0 is the initial state, and the circuit enters state S0 after the fourth input. The BCD digits are received most significant bit first. The following state table was constructed as a Mealy table using a sufficient number of states to remember the last three inputs with the output produced when the fourth input bit of a block is received.

(a) Does the resulting table specify a Mealy or a Moore circuit?

(b) Reduce the state table to a minimum number of states.

(c) For each state in the reduced table, give the input pattern remembered by that state.

Answers

Maurice Tutor
(5)
Status NEW Posted 29 Jan 2018 10:01 PM My Price 8.00

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