PPT Slide

7 – Sequential Logic Examples

© 1996 Gaetano Borriello

Finite string pattern recognizer (step 2, cont'd)

• Exit conditions from S1: recognizes strings of form …0 (no 1 seen)

  • loop back to S1 if input is 0

• Exit conditions from S4: recognizes strings of form …1 (no 0 seen)

  • loop back to S4 if input is 1

11

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