1. Shift Registers 2 Created: March 2008 Last Edit March 2014
 Paul R. Godin

2. Shift Register Problems
This presentation contains timing diagrams.
Shift Registers are synchronous circuits. Timing diagrams are handled the same way.
Design Problems
Questions

3. Diagram #1
Complete the timing diagram

4. Diagram #2
Complete the timing diagram

5. Diagram #3
Complete the timing diagram

6. Diagram #4

7. Configuration #1
Connect 2 universal shift registers together, creating a single universal register.
74194
DSR
DSL A B C D Qa Qb Qc Qd S0 S1
Clk
74194
DSR
DSL A B C D Qa Qb Qc Qd S0 S1
Clk

8. Design 1 I think I’ve seen this before….
Using a 4 bit bi-directional shift register, design a circuit that will have the following self-repeating output pattern:
Challenge: Use 2, 4-bit registers to create the above pattern with 8 outputs.
I think I’ve seen this before….

9. Kitt car from Night Rider
Cylon from Battlestar Galactica
From now on you will not see the lights…you will always see a shift register. Sorry for taking away the magic.
Paul R. Godin
image sources: original site unknown / multiple sources