How do you find equivalent states from state tables?

How do you find equivalent states from state tables?

It can be seen from the table that the present state A and F both have the same next states, B (when x=0) and C (when x=1). They also produce the same output 1 (when x=0) and 0 (when x=1). Therefore states A and F are equivalent.

Is state diagram same as truth table?

The state diagram provides exactly the same information as the state table and is obtained directly from the state table. Example: This example is taken from P. K. Lala, Practical Digital Logic Design and Testing, Prentice Hall, 1996, p. 155.

What is excitation table and state diagram?

In electronics design, an excitation table shows the minimum inputs that are necessary to generate a particular next state (in other words, to “excite” it to the next state) when the current state is known.

What are the similarities and differences between a truth table and a state table?

A state table defines the behavior of the sequential function. Truth table gives relation between inputs and outputs. Excitation table is used for design of flip-flops and counters. Truth table contains inputs and excitation table takes outputs as inputs.

Where does the output go in a state diagram?

The output value is indicated inside the circle below the present state. It is because, in Moore model, the output depends on the present state but not on the input. The information contained in the state diagram is transformed into a table called as state table or state synthesis table.

How do you create a reduced state diagram?

To construct the reduced state diagram, first build the state table for the given state diagram, find the equivalent states, remove the redundant state, draw the reduced state table and finally construct the state diagram. First, the information in the state diagram is transferred into the state table as shwon below.

Is the state diagram the same as the state table?

It includes a state diagram, state table, reduced state table, reduced state diagram. Let us discuss them in detail. The state diagram is the pictorial representation of the behavior of sequential circuits.

How are transitions represented in a state diagram?

Each internal state is represented in the state diagram by a circle containing an arbitrary number or letter ; transitions are shown by arrows labelled with the particular input causing the change of state. In the case of pulse outputs the transition arrows are also labeled with the output associated with the input pulse.