PS02-soln

# PS02-soln - ECE 109 Spring 2010 Name Section Problem...

This preview shows pages 1–4. Sign up to view the full content.

ECE 109 Spring 2010 Name:__________________________________________ Section:______________________ Feb 8-12, 2010 1 Problem Session 2 1. [35 pts] Show the logic circuit implementation of this state diagram. 00 0 01 1 1 10 1 0 0 0 1 1 1 0 11 0 S1 S0 out 0 0 0 0 1 1 1 0 1 1 1 0 S1 S0 in S1’ S0’ 0 0 0 0 0 0 0 1 0 1 0 1 0 1 0 0 1 1 1 1 1 0 0 1 1 1 0 1 0 1 1 1 0 1 0 1 1 1 1 1 NOTE: For S1‟ and S0‟, there are fewer zeroes than ones, so I‟ve chosen to use NOR instead of OR. flipflop flipflop in out S0' S1' S1 S0

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
ECE 109 Spring 2010 Name:__________________________________________ Section:______________________ Feb 8-12, 2010 2 2. [35 pts] For the state machine in the figure, show the following: 1. The truth table for the output Z. 2. The truth table for the next state (S1‟, S0‟). 3. The state diagram. S1 S0 Z 0 0 0 0 1 1 1 0 1 1 1 0 S1 S0 X S1’ S0’ 0 0 0 1 0 0 0 1 0 1 0 1 0 1 0 0 1 1 0 1 1 0 0 1 1 1 0 1 0 1 1 1 0 1 1 1 1 1 1 1 00 0 01 1 1 10 1 0 0 0 1 0,1 11 0 1
ECE 109 Spring 2010 Name:__________________________________________ Section:______________________ Feb 8-12, 2010 3 3. [20 pts] Design a state machine that recognizes a specific letter of Morse Code. In case you‟re not familiar with Morse Code, here‟s some text from Wikipedia (http://en.wikipedia.org/wiki/Morse_code):

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

## This note was uploaded on 04/18/2010 for the course ECE 109 taught by Professor Bradley during the Spring '08 term at N.C. State.

### Page1 / 6

PS02-soln - ECE 109 Spring 2010 Name Section Problem...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online