CODEWITHSUNDEEP
state-machinefsm
user9605362
user9605362

Reputation: 1

Different next states for same current state?

So I'm working on this state machine which is supposed to emulate a sequence as follows:

state machine table

However, the state 00 goes to both 01 and 10 at different times. How can I design a circuit that allows me to go from the same initial state to two different next states?

Upvotes: 0

Views: 239

Answers (1)

Carlos Bermudez
Carlos Bermudez

Reputation: 73

Based on the table you shared, I'm assuming that this machine wants to iterate in the loop 00->01->00->10 an again. In this case, your machine can be modeled using 4 states instead of just 3. These states are:

  1. A represents 00 but when the previous state was 10
  2. B represents 01
  3. C represents 00 but when the previous state was 01
  4. D represents 10

With A as the initial state, your table will then be:

S S'
A B
B C
C D
D A

If you want to use the original values, then you must build a circuit that for each of these new states gives you those values. This circuit would be in this case:

S V
A 00
B 01
C 00
D 10

Upvotes: 3

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