ECS154A Homework #3

1. The following 4 bit patterns are received from memory.
   
   
   1. 0 1 0 1 0 1 0
   2. 0 0 1 0 0 0 0
   3. 0 0 0 0 0 0 1
   4. 0 1 0 1 0 0 1
   
   Assuming the same single error correcting code we used in class, what are the decimal digits that were received?
   
   
2. A Flip Flop is characterized by the following state transition equation:
   
   z' = z XOR x1 XOR x2
   
   Construct this flip flop using combinational logic and an RS FlipFlop.
   
   
3. Do problem A.18 in the book.
   
   
4. Do problem A.33 in book, and build it in Diglog.
   
   
5. Design and implement in Diglog a minimum-cost sequential state machine that does the following:

"An output z=1 is to accompany the input symbol 1 if that 1 follows two or more 0's."