Designing State Table for Sequential Circuit: A-B to Z

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SUMMARY

The discussion focuses on designing a state table for a sequential circuit, specifically addressing how to calculate the next state of inputs A and B and the output Z. The user seeks clarification on the relationship between the input conditions and the resulting state transitions and outputs. Key concepts mentioned include the necessity of defining the function of the state machine and the importance of understanding Mealy and Moore state machines for accurate design. The conversation emphasizes the role of truth tables in determining state transitions and outputs.

PREREQUISITES
  • Understanding of sequential circuits and state tables
  • Familiarity with Mealy and Moore state machines
  • Knowledge of truth tables and their application in logic design
  • Basic concepts of flip-flops and state transitions
NEXT STEPS
  • Research the design principles of Mealy and Moore state machines
  • Study the construction and interpretation of truth tables for sequential circuits
  • Learn about flip-flop types and their role in state transitions
  • Explore examples of state table designs for various sequential circuits
USEFUL FOR

Electrical engineers, computer engineers, students studying digital logic design, and anyone involved in designing or analyzing sequential circuits.

ibaraku
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I don't know if I can get help here, but it's worth trying, I have to design a state table for a sequential circuit, the table looks like this

P St Input N St Output
A B X Y A B Z
0 0 0 0
0 0 0 1
0 0 1 0
0 0 1 1
0 1 0 0
0 1 0 1
0 1 1 0
etc...

My question is, how is the Next state of A B an Output Z calculated?
Thanks for you help in advance!
 
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I think you are going to have to explain your truth table a bit more, or at least what your circuit is trying to do.
 
ibaraku said:
I don't know if I can get help here, but it's worth trying, I have to design a state table for a sequential circuit, the table looks like this

P St Input N St Output
A B X Y A B Z
0 0 0 0
0 0 0 1
0 0 1 0
0 0 1 1
0 1 0 0
0 1 0 1
0 1 1 0
etc...

My question is, how is the Next state of A B an Output Z calculated?
Thanks for you help in advance!

Thread moved to Homework Help forums.

Welcome to the PF, ibaraku. The outputs are defined by whatever function you are trying to make with your state machine. You will be given a function, or a truth table, from which you design the logic and flipflop arrangement to make those next state and output values. Look in your study materials for information on Mealy and Moore state machines, or look them up on wikipedia.org
 

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