In the Even Parity scheme, if the number of 1’s is even in the data stream (info), then the parity bit is ‘0’ whereas when the total number of 1 count to be odd then ‘1’ is the parity bit. It is a combinational circuit that takes n-bit of information (data) and generates an additional bit to be transmitted along with the n-bit data. Such a circuit can easily be implemented by using the Ex-OR gate ( as it gives 0 when the number of inputs is even). The fundamental principle in parity circuits is that the sum of even number of 1’s is always 1 and that of the odd number of 1’s is always 0. Whereas, when the odd parity is used the sum total of data and parity bit makes the total number of 1’s an odd value. In even parity, the total number of 1’s by adding both parity and data will be even. The sum of the parity bit and data bit might be even or odd. But when we talk about the Parity Checker, it’s a combinational circuit that checks the parity in the receiver. The parity generator is a digital logic circuit that generates a parity bit in the transmitter. Thus the bit that is added to the word containing the binary information for making the number of 1’s odd or even is said to be called as a Parity bit.Īlso, watch Motion detector circuit Parity Generator and checker Well, it might be a 0 or 1 in data transmission, depending on the type of Parity checker or generator (even or odd). Before studying the main topic, let’s discuss what do we mean by a parity bit.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |