Scribd
Upload
296 views9 pages

Engineering Project Guide

This document describes designing a combinational circuit for an odd parity generator. It begins with an overview of combinational circuits and their design procedure. It then explains what a parity bit generator is and the differences between even and odd parity generators. It provides details on how to design an odd parity generator, including forming the truth table and implementing the Boolean expressions using logic gates. It also briefly discusses parity checkers for checking transmitted data with even or odd parity bits.

Uploaded by

PRABHUDEESHWARAN G : IT DEPT
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PPTX, PDF, TXT or read online on Scribd
296 views9 pages

Engineering Project Guide

This document describes designing a combinational circuit for an odd parity generator. It begins with an overview of combinational circuits and their design procedure. It then explains what a parity bit generator is and the differences between even and odd parity generators. It provides details on how to design an odd parity generator, including forming the truth table and implementing the Boolean expressions using logic gates. It also briefly discusses parity checkers for checking transmitted data with even or odd parity bits.

Uploaded by

PRABHUDEESHWARAN G : IT DEPT
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PPTX, PDF, TXT or read online on Scribd
You are on page 1/ 9

RMD ENGINEERING COLLEGE,KAVERAIPETTAI,THIRUVALLUR-601204

DPSD MINI PROJECT

BY-
PRABHUDEESHWARAN G
IT B
111520205036
 Given two decimal numbers A and B, write and
execute a Python Program for performing A+B
using 10’s compliment method.

 Design a combinational circuit for OddParity


generator
COMBINATIONAL CIRCUITS:

Combinational circuits consist of Logic gates. These circuits


operate with binary values. The outputs of combinational
circuit depends on the combination of present inputs. The
following figure shows the block diagram of combinational
circuit.
DESIGN PROCEDURE OF COMBINATIONAL CIRCUITS:

• Find the required number of input variables and outputs


from given specifications.

• Formulate the Truth table. If there are ‘n’ input variables,


then there will be 2n possible combinations. For each
combination of input, find the output values.

• Find the Boolean expressions for each output. If necessary,


simplify those expressions.

• Implement the above Boolean expressions corresponding to


each output by using Logic gates.
PARITY BIT GENERATOR:

• There are two types of parity bit generators based on the


type of parity bit being generated. Even parity generator
generates an even parity bit. Similarly, odd parity generator
generates an odd parity bit.

ODD PARITY GENERATOR:

• If even number of ones present in the input, then odd parity


bit, P should be ‘1’ so that the resultant word contains odd
number of ones. For other combinations of input, odd parity
bit, P should be ‘0’.

• Follow the same procedure of even parity generator for


implementing odd parity generator.
• The above circuit diagram consists of Ex-OR gate in first level
and Ex-NOR gate in second level. Since the odd parity is just
opposite to even parity, we can place an inverter at the
output of even parity generator. In that case, the first and
second levels contain an ExOR gate in each level and third
level consist of an inverter.
PARITY CHECKER:
• There are two types of parity checkers based on the type of
parity has to be checked. Even parity checker checks error in
the transmitted data, which contains message bits along
with even parity. Similarly, odd parity checker checks error in
the transmitted data, which contains message bits along
with odd parity.
• ODD PARITY GENERATOR
OUTPUT:
THANK
YOU!!!

You might also like