We discussed how to construct an 8bit even parity generatorc

We discussed how to construct an 8-bit even parity generator/checker using XOR gates, can you use XNOR gates to perform the same function? Draw the schematic diagram. If you are asked to build an 8 bit odd parity generator/checker with the output ERROR= 1 when there is a 1 bit error, which type of gates, XOR or XNOR is simpler to use? Explain. Why can\'t a parity generator/checker detect even-bit errors? Given an example in your explanation.

Solution

1. we cannot use XNOR gate to construct 8-bit even parity checker/generator as it used in odd parity.

2. XNOR gates.Because XNOR always looks for similar inputs so it is used as detecting single bit errors.

3. suppose u want send data 000011. then u will append parity 0 then transmitted data woud be 011011 0. and suppose at receiver end u get 001111 0. So in parity check it got passed but two bits are flipped. so it cannot detect all even bit errors.