9 Bit Parity Generator Logic Diagram. The following diagram shows a typical reed solomon codeword this is known as a systematic code because the data is left unchanged and the parity symbols are appended. The parity generator circuit shown checks the 4 bit number generates a parity bit which along with the 4 bit data is transmitted.
This feature is only available for standard speed mode. An ic 74148 is the most popularly used msi encoder circuits for the 8 to 3 line priority encoder. Bit 2 1 pdsel.
It is used to generate both even and odd parity.
Parity bit p2 covers all data bits in positions whose binary representation has 1 in the second least significant position010 011 110 111 etc. The ic consists of 8 message signal bits from a to h and two cascading inputs for even and odd. If odd number of ones present in the input then even parity bit p should be 1 so that the resultant word contains even number of ones. It is used to generate both even and odd parity.