Loading...

Messages

Proposals

Stuck in your homework and missing deadline? Get urgent help in $10/Page with 24 hours deadline

Get Urgent Writing Help In Your Essays, Assignments, Homeworks, Dissertation, Thesis Or Coursework & Achieve A+ Grades.

Privacy Guaranteed - 100% Plagiarism Free Writing - Free Turnitin Report - Professional And Experienced Writers - 24/7 Online Support

Binary to gray code truth table

01/12/2021 Client: muhammad11 Deadline: 2 Day

Logism Combinational Logic Circuit. Balanced Gray Code To Binary Code With Hex Display.

Preface

You will need Logisim to complete this project assignment. Further information about LogiSim is at http://www.cburch.com/logisim/. If you have not done so already, download and install Logisim 2.7.1 from http://sourceforge.net/projects/circuit/.

1. Introduction

The objective of this project is to reinforce your understanding of binary codes, combinational logic design, and logic simulation. You must: (i) design a combinational logic circuit that displays the hexadecimal value of a gray code input according to the specifications given below; (ii) debug and test your design by simulating it using the Logisim simulator; and (iii) document your work in a short report.

2. Gray Codes

Consider a system where a value is changed by being incremented or decremented by one. The value is encoded by n binary signals. As a specific example, consider a value, represented with 4 bits, being incremented from 3 to 4. In a traditional weighted binary encoding, 3 is represented as 0011 and 4 is represented as 0100. For the change from 3 to 4, three bits must change. Since the time of the transitions in the actual signals will always be different if examined at a sufficiently fine scale, the value will not change instantaneously from 3 to 4. As an example, the transition could occur as follows, where the transitions to value 7 and then value 5 are transient in nature.

0011 (3) ® 0111 (7) ® 0101 (5) ® 0100 (4)

The physical reality of such signal transitions can create problems for applications including mechanical encoders and asynchronous (clock-free) systems. This problem can be overcome using Gray codes, which are non-weighted codes that can be used to represent values. Gray codes have the special property that any two adjacent values differ in just one bit. For example, the standard four-bit Gray code for 3 is 0010 and the code for 4 is 0110. These two codes differ in just one bit, the second bit from the left. So, only a single signal needs to change from 0 to 1 (or 1 to 0 for other values) to represent an adjacent value. You can read more about Gray codes at http://en.wikipedia.org/wiki/Gray_code.

For this project we consider a special type of Gray code called a Balanced Gray code. In a Balanced Gray code, the number of transitions for each bit position is the same when counting through the values. For example, a four-bit Balanced Gray code can be used to count from 0 to 15 (hexadecimal F). There are 16 transitions as the count goes from 0 to 1 to 2 and so on to 15 and then back to 0. For a Balanced Gray code, there are four bit transitions for each of the four bit positions during the 16 total transitions. This property is useful in some applications.

Table I below shows the encoding of hexadecimal values 0 through F using a 4-bit Balanced Gray code.

Table I. Hexadecimal Values and Associated 4-bit Balanced Gray Code and Binary Code

Hexadecimal
Value

Balanced Gray Code
(X3 X2 X1 X0)

Binary
Code
(Y3 Y2 Y1 Y0)

0

0 0 0 0

0 0 0 0

1

1 0 0 0

0 0 0 1

2

1 1 0 0

0 0 1 0

3

1 1 0 1

0 0 1 1

4

1 1 1 1

0 1 0 0

5

1 1 1 0

0 1 0 1

6

1 0 1 0

0 1 1 0

7

0 0 1 0

0 1 1 1

8

0 1 1 0

1 0 0 0

9

0 1 0 0

1 0 0 1

A

0 1 0 1

1 0 1 0

B

0 1 1 1

1 0 1 1

C

0 0 1 1

1 1 0 0

D

1 0 1 1

1 1 0 1

E

1 0 0 1

1 1 1 0

F

0 0 0 1

1 1 1 1

3. Design Specification

You are to design a combinational logic circuit that accepts a four-bit Balanced Gray code (X3 X2 X1 X0) as its input and creates a four-bit output (Y3 Y2 Y1 Y0) that uses standard binary encoding to represent the same hexadecimal value. In other words, the circuit translates between the Balanced Gray code input and the binary code output as indicated in Table I. Figure 1 provides a block diagram of the function. You do not need to minimize the logic function or associated circuit, but you may choose to do so.

Note that Table I is not a true truth table in that it is not ordered by input. You can rearrange the rows in Table I to construct a standard truth table with inputs X3 X2 X1 X0 appearing in order from 0000, 0001, 0010, …, 1111.

Figure 1. Block diagram of the converter function.

4. Modeling the Circuit in Logisim

Use the Pin device in Logisim’s Wiring library to control the four inputs (X3 X2 X1 X0) to the combinational circuit. The Pin device is also available on Logisim’s toolbar. Each pin can be interactively set to 0 or 1 using Logisim’s Poke tool to test the circuit for different Balanced Gray code input values. If the proper connections are in place when Logisim is running, signals with logic level 1 appear in bright green and signals with logic level 0 are shown in dark green.

The circuit’s four output bits should be used to control a hexadecimal display to show values 0 through F, inclusive. Use the Hex Digit Display device in Logisim’s Input/Output library. It accepts a 4-bit binary encoded value as input and displays the hexadecimal digit corresponding to the binary-encoded input. Use the Splitter device in Logisim’s Wiring library to interface the four individual single bits produced by the combinational circuit (Y3 Y2 Y1 Y0) to the four-bit wide input to the Hex Digit Display. The Hex Digit Display device has a second input to control the decimal (hexadecimal) point. The decimal point input can be left unconnected.

Figure 2 shows a possible layout for the design. The associated Logisim circuit file is provided with this assignment.

Figure 2. Possible circuit layout including logic to produce output Y0 (input is for Balanced Gray Code value 0011 which produces output 1100 or hexadecimal C).

The design in Figure 2 includes the combinational logic to produce output Y0. By observation, we see that output Y0 is true if and only if there are an odd number of logic 1 inputs. Thus, Y0 is implemented by the exclusive-or (XOR) function, i.e., Y0 = X3 Å X2 Å X1 Å X0. For the Logisim XOR Gate, the Multiple-Input Behavior attribute needs to be set to “When an odd number are on.”

5. Simulation

After you create your design, use Logisim to simulate the code conversion circuit. You should test all 16 possible input combinations and verify that the correct values of Y3, Y2, Y1, and Y0 are produced and that the correct hexadecimal value is displayed.

Preface
· You will need Logisim to complete this project assignment. Further information about LogiSim is at http://www.cburch.com/logisim/. If you have not done so already, download and install Logisim 2.7.1 from http://sourceforge.net/projects/circuit/.

1. Introduction
The objective of this project is to reinforce your understanding of binary codes, combinational logic design, and logic simulation. You must: (i) design a combinational logic circuit that displays the hexadecimal value of a gray code input according to the specifications given below; (ii) debug and test your design by simulating it using the Logisim simulator; and (iii) document your work in a short report.

2. Gray Codes
Consider a system where a value is changed by being incremented or decremented by one. The value is encoded by n binary signals. As a specific example, consider a value, represented with 4 bits, being incremented from 3 to 4. In a traditional weighted binary encoding, 3 is represented as 0011 and 4 is represented as 0100. For the change from 3 to 4, three bits must change. Since the time of the transitions in the actual signals will always be different if examined at a sufficiently fine scale, the value will not change instantaneously from 3 to 4. As an example, the transition could occur as follows, where the transitions to value 7 and then value 5 are transient in nature.

0011 (3)  0111 (7)  0101 (5)  0100 (4)

The physical reality of such signal transitions can create problems for applications including mechanical encoders and asynchronous (clock-free) systems. This problem can be overcome using Gray codes, which are non-weighted codes that can be used to represent values. Gray codes have the special property that any two adjacent values differ in just one bit. For example, the standard four-bit Gray code for 3 is 0010 and the code for 4 is 0110. These two codes differ in just one bit, the second bit from the left. So, only a single signal needs to change from 0 to 1 (or 1 to 0 for other values) to represent an adjacent value. You can read more about Gray codes at http://en.wikipedia.org/wiki/Gray_code.

For this project we consider a special type of Gray code called a Balanced Gray code. In a Balanced Gray code, the number of transitions for each bit position is the same when counting through the values. For example, a four-bit Balanced Gray code can be used to count from 0 to 15 (hexadecimal F). There are 16 transitions as the count goes from 0 to 1 to 2 and so on to 15 and then back to 0. For a Balanced Gray code, there are four bit transitions for each of the four bit positions during the 16 total transitions. This property is useful in some applications.

Table I below shows the encoding of hexadecimal values 0 through F using a 4-bit Balanced Gray code.

Table I. Hexadecimal Values and Associated 4-bit Balanced Gray Code and Binary Code

Hexadecimal Value

Balanced Gray Code (X3 X2 X1 X0)

Binary Code (Y3 Y2 Y1 Y0)

0

0 0 0 0

0 0 0 0

1

1 0 0 0

0 0 0 1

2

1 1 0 0

0 0 1 0

3

1 1 0 1

0 0 1 1

4

1 1 1 1

0 1 0 0

5

1 1 1 0

0 1 0 1

6

1 0 1 0

0 1 1 0

7

0 0 1 0

0 1 1 1

8

0 1 1 0

1 0 0 0

9

0 1 0 0

1 0 0 1

A

0 1 0 1

1 0 1 0

B

0 1 1 1

1 0 1 1

C

0 0 1 1

1 1 0 0

D

1 0 1 1

1 1 0 1

E

1 0 0 1

1 1 1 0

F

0 0 0 1

1 1 1 1

3. Design Specification
You are to design a combinational logic circuit that accepts a four-bit Balanced Gray code (X3 X2 X1 X0) as its input and creates a four-bit output (Y3 Y2 Y1 Y0) that uses standard binary encoding to represent the same hexadecimal value. In other words, the circuit translates between the Balanced Gray code input and the binary code output as indicated in Table I. Figure 1 provides a block diagram of the function. You do not need to minimize the logic function or associated circuit, but you may choose to do so.

Note that Table I is not a true truth table in that it is not ordered by input. You can rearrange the rows in Table I to construct a standard truth table with inputs X3 X2 X1 X0 appearing in order from 0000, 0001, 0010, …, 1111.

Figure 1. Block diagram of the converter function.

4. Modeling the Circuit in Logisim
Use the Pin device in Logisim’s Wiring library to control the four inputs (X3 X2 X1 X0) to the combinational circuit. The Pin device is also available on Logisim’s toolbar. Each pin can be interactively set to 0 or 1 using Logisim’s Poke tool to test the circuit for different Balanced Gray code input values. If the proper connections are in place when Logisim is running, signals with logic level 1 appear in bright green and signals with logic level 0 are shown in dark green.

The circuit’s four output bits should be used to control a hexadecimal display to show values 0 through F, inclusive. Use the Hex Digit Display device in Logisim’s Input/Output library. It accepts a 4-bit binary encoded value as input and displays the hexadecimal digit corresponding to the binary-encoded input. Use the Splitter device in Logisim’s Wiring library to interface the four individual single bits produced by the combinational circuit (Y3 Y2 Y1 Y0) to the four-bit wide input to the Hex Digit Display. The Hex Digit Display device has a second input to control the decimal (hexadecimal) point. The decimal point input can be left unconnected.

Figure 2 shows a possible layout for the design. The associated Logisim circuit file is provided with this assignment.

Figure 2. Possible circuit layout including logic to produce output Y0 (input is for Balanced Gray Code value 0011 which produces output 1100 or hexadecimal C).

The design in Figure 2 includes the combinational logic to produce output Y0. By observation, we see that output Y0 is true if and only if there are an odd number of logic 1 inputs. Thus, Y0 is implemented by the exclusive-or (XOR) function, i.e., Y0 = X3  X2  X1  X0. For the Logisim XOR Gate, the Multiple-Input Behavior attribute needs to be set to “When an odd number are on.”

5. Simulation
After you create your design, use Logisim to simulate the code conversion circuit. You should test all 16 possible input combinations and verify that the correct values of Y3, Y2, Y1, and Y0 are produced and that the correct hexadecimal value is displayed.

Homework is Completed By:

Writer Writer Name Amount Client Comments & Rating
Instant Homework Helper

ONLINE

Instant Homework Helper

$36

She helped me in last minute in a very reasonable price. She is a lifesaver, I got A+ grade in my homework, I will surely hire her again for my next assignments, Thumbs Up!

Order & Get This Solution Within 3 Hours in $25/Page

Custom Original Solution And Get A+ Grades

  • 100% Plagiarism Free
  • Proper APA/MLA/Harvard Referencing
  • Delivery in 3 Hours After Placing Order
  • Free Turnitin Report
  • Unlimited Revisions
  • Privacy Guaranteed

Order & Get This Solution Within 6 Hours in $20/Page

Custom Original Solution And Get A+ Grades

  • 100% Plagiarism Free
  • Proper APA/MLA/Harvard Referencing
  • Delivery in 6 Hours After Placing Order
  • Free Turnitin Report
  • Unlimited Revisions
  • Privacy Guaranteed

Order & Get This Solution Within 12 Hours in $15/Page

Custom Original Solution And Get A+ Grades

  • 100% Plagiarism Free
  • Proper APA/MLA/Harvard Referencing
  • Delivery in 12 Hours After Placing Order
  • Free Turnitin Report
  • Unlimited Revisions
  • Privacy Guaranteed

6 writers have sent their proposals to do this homework:

Helping Engineer
Assignment Guru
George M.
Top Academic Guru
Coursework Assignment Help
Financial Analyst
Writer Writer Name Offer Chat
Helping Engineer

ONLINE

Helping Engineer

I am an experienced researcher here with master education. After reading your posting, I feel, you need an expert research writer to complete your project.Thank You

$41 Chat With Writer
Assignment Guru

ONLINE

Assignment Guru

I will provide you with the well organized and well research papers from different primary and secondary sources will write the content that will support your points.

$35 Chat With Writer
George M.

ONLINE

George M.

I will be delighted to work on your project. As an experienced writer, I can provide you top quality, well researched, concise and error-free work within your provided deadline at very reasonable prices.

$18 Chat With Writer
Top Academic Guru

ONLINE

Top Academic Guru

I find your project quite stimulating and related to my profession. I can surely contribute you with your project.

$48 Chat With Writer
Coursework Assignment Help

ONLINE

Coursework Assignment Help

As an experienced writer, I have extensive experience in business writing, report writing, business profile writing, writing business reports and business plans for my clients.

$38 Chat With Writer
Financial Analyst

ONLINE

Financial Analyst

I have done dissertations, thesis, reports related to these topics, and I cover all the CHAPTERS accordingly and provide proper updates on the project.

$32 Chat With Writer

Let our expert academic writers to help you in achieving a+ grades in your homework, assignment, quiz or exam.

Similar Homework Questions

12n9 4b 1 cross reference - Write 1500 words for this task: - Cultural Diversity - Diane downs interview with anne bradley - Promotion of well- being - Come live with us - Cisco ex60 factory reset - 05-6,7 - Ccis d2l - Advanced diploma of conveyancing fns60311 - Assignment - IFG case study - The obligation to endure ethos pathos logos - The plea frontline video - Soc 120 week 2 assignment powerpoint - Learn qualtrics in 5 steps - The liabilities section of o brian's balance sheet - Treason berlie doherty audiobook - Characteristics of living things reading comprehension - Security plan for a medium sized health care facility. - Ritz cinema port macquarie - Chicken dissection lab report - A firm evaluates all of its projects by applying the irr rule. if the required return is 14 percent - What is an annotated outline sample - Nonequivalent control group design - Apa article critique - Corporate leadership council australia - Week 2 discussion leadership - End of shift report restaurant - The race chapter questions and answers - Wileyplus refund - Relationship between professional practices and scholarly ethics - Personal experience speech ideas - A leader who uses an achievement oriented style - How qualys license works - Cuol carleton - Geometry chapter 8 review - 1 mole of aluminum - Cell organelles worksheet page 3 - Data Mining - Benefits of stepwise management of asthma - Brandon king the american dream summary - Words their way poems - The a992 steel shaft has a diameter - History paper - Applying for special consideration griffith - Think critically facione 2016 pdf - The zoom slider is located on the ____ - Anbessa shoes company profile - Rolex Deep Submersible - Flowchart improvement process - La misma luna summary - In process cost accounting manufacturing costs are summarized on a - Plagiarism certification test answers indiana university - Developing technology project requirements - Diploma of anaesthetic technology - Introduction to biology worksheet - Iron hood fitness new friends colony - 7 eleven advantages and disadvantages - Discovering psychology remembering and forgetting worksheet answers - Call you me fair that fair again unsay - Managerial Accounting - Brambles holdings ltd v bathurst city council - I am hiring writing team for the subjects of business, management , marketing, finance, HR - What time is 13 35 - Effective business writing quiz - Is dramatic irony a dramatic technique - Assignment - What are the benefits and limitations of scientific models - Paper folding test spatial ability - For both companies compute the a current ratio - Estimating the calorie content of nuts lab answers - Analyzation and Data Visualization - Hoxton park big w - +91|\|\+&#9414601882 lOvE prOblEm sOlutiOn tOrOntO - How to write a tax memo - Health Care - Stephen colbert at&t cingular merger - Oracle inventory management cloud - Lamb loin chops woolworths - I wish i weren t or wasn t - Digital Forensic - Become a referee sfa - How to find the ratio of two similar triangles - Co2 covalent compound name - The crown of diamonds sherlock holmes summary - The oceanaire seafood room menu - Dsm iv symptoms of anxiety - Hugh van cuylenburg sister georgia - +91-8890675453 love marriage problem solution IN Bally - How does lowest tco differ from lowest purchase price - Health Assessment 8 - Science spot forensic entomology - Yankee trace fish fry coupon - 2 page case study READ SENERIO CAREFULLY MUST BE 100% ORIGINAL OR WILL NOT PAY!!!!! DUE TONIGHT AT 11:00 PM A MUST - Identify a poor habit and explain how you would get rid of it - Amps to kw calculator - Advocating for the Nursing Role in Program Design and Implementation - Boring, tedious jobs generally reduce people's perceptions of their - E-oz energy skills australia - Expand 4e e 2