LogicWorks(TM) Lab 2

Logic Simulation and Library Creation

1. Tutorial Objectives

In this laboratory, you will gain experience in using LogicWorks(TM) to create a new chip. Your job is to:

* Create a 5 bit full-adder chip with a carry out.

* Simulate the chip at the 1 bit full-adder level.

* Use the device editor to make 1 and 5 bit full adder chips.

* You do not need to show power and ground

* Your chip should be properly labeled (pin functions and title)

* Show timing diagrams and printouts for the chip.

* Make a library entry in YOUR OWN DIRECTORY with your adder.

* Submit hardcopy of the circuit used for simulation, the chip you made, and a timing diagram.

* Include this page as the cover sheet for your lab. You may write on this page.

1. 5 bit Full-adder has 11 bits on input. Including the carry-out, how many output bits will the adder have?

2. Implement the adder just like the full-adder of lab 1. Show the printout of the gate level simulation for the single bit full-adders you use to make the 5 bit full-adder.

3. Include a hardcopy of the chip used to implement your adder. Label the input pins: a0,a1,a2,a3,a4,b0,b1,b2,b3,b4,Ci. Label the output pins: s0,s1,s2...,Co.

4. Include a hardcopy of the waveform diagram.

5. What are the boolean algebraic expressions which describe your adder?