The table shows the parity generator outputs for various 4-bit data words. As its name implies the operation of an Odd Parity generator is similar but it provides odd parity. modem lines) and is often included in memory systems. If a dataword is sent out with even parity, but has odd parity when it is received then the data has been corrupted and must be resent. Parity is used on communication links (e.g. By concatenating the parity bit to the dataword, a word will be formed which always has an even number of 1s i.e. If the data word contains an even number of 1s then the output of the Parity Generator will be 0. An even Parity Generator will produce a logic 1 at its output if the data word contains an odd number of 1s. ![]() There are two types of parity – even and odd. ![]() Parity bits are extra signals which are added to a data word to enable error checking.
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