The document discusses universal shift registers in Verilog, which are capable of storing data and transferring it on clock pulses using various modes such as parallel and serial input/output. It highlights their advantages, including multifunctionality, flexibility in digital systems, and efficiency in hardware usage, while also noting similar disadvantages. Applications include digital signal processing, frequency division, and timing operations.

1. UNIVERSAL SHIFT REGISTER
USING VERILOG

2. UNIVERSAL SHIFT REGISTER:
A Universal Shift Register Is A Sequential Logic That Can Store Data Within And On Every
Clock Pluse It Transfers Data To The Output Port
• The universal shift register can be used as
1. Parallel In Parallel Out shift register
2.Parallel In Serial Out shift register
3.Serial In Parallel Out shift register
4.Serial In Serial Out shift register

3. OPERATION
Mode of control
(select)
operation
0 0 No change
0 1 Shift right
1 0 Shift left
1 1 Parallel load

4. BLOCK DIAGRAM

5. VERILOG CODE

6. TEST CODE

7. OUTPUT

8. ADVANTAGES OF UNIVERSAL SHIFT REGISTER
• Multifunctionality: left and right shifts, parallel load, and static hold can all be
performed.
• Flexibility: can be used in many different digital systems.
• Efficient: reduces the hardware to manipulate the data.
• DISADVANTAGES OF UNIVERSAL SHIFT REGISTER
• Multifunctionality: left and right shifts, parallel load, and static hold can all be
performed.
• Flexibility: can be used in many different digital systems.
• Efficient: reduces the hardware to manipulate the data.

9. APPLICATIONS OF UNIVERSAL SHIFT REGISTER
• Digital Signal Processing: Digital signal processing finds its applications in
arithmetic operations and data manipulation.
• Frequency divider: obtains lower frequency clock signals.
• Counters and timers: Counters and timers perform timing and counting operations.
THANKYOU
k.Deepthisree submitted to
23P61A67A2 CH.Ranjith
CSD-B (Asst.prof)