Lab # 9 Parity Generators and Checkers
Objective
A parity circuit provides a means of detecting possible loss of data during data transfer. It accomplishes this by adding a parity bit ( a "one" or "zero") to the data message and transmitting the data and parity to the receiver. The generator parity bit becomes a part of the transmitted message.
If the transmitted parity bit does not agree with the parity scheme used (odd or even parity), as checked by the parity checker circuit, transmission is halted because the probability is extremely high a message bit has been dropped, lost or missing.
Procedure
- A four bit message even parity generator.
- A four bit message even parity checker