What does xor gate do

In order to generate the random numbers, we arrange the XOR logic gate in a specific order by forming a linear feedback shift register. XOR gate is capable of producing a low level input i. When we are searching for a particular bit sequence in a long data sequence, we use XOR gates to find the required data bit sequence. In many communication devices such as decoders and CDMA receivers, we use co-relaters, which are used to extract the parity of a specific Pseudo Random Number sequence in a group of PRN sequence.

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This Ex-OR symbol also defines the "direct sum of sub-objects" expression. These are the following types of Exclusive-OR gate:. This is a simple form of the hybrid gate XOR. In this type of XOR gate, there are only two input values and an output value. The output level is high when both inputs are set to a different logic level.

The Boolean expression of 2-input XOR gate is as follows:. The Boolean expression of the logical Ex-OR gate is as follows:. The main disadvantage of this implementation is that we need to use different types of gates to form a single XOR gate.

This is an easier way of producing Ex-OR gate functionality. The Ex-or gate plays an important role in constructing digital circuits that perform arithmetic operations and calculations.

Especially Adders and Half-Adders , as they can provide a "carry-bit" function or as a controlled inverter, where one input passes the binary data, and the other input is supplied with a control signal.

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An XOR gate sometimes referred to by its extended name, Exclusive OR gate is a digital logic gate with two or more inputs and one output that performs exclusive disjunction.

The output of an XOR gate is true only when exactly one of its inputs is true. If both of an XOR gate's inputs are false , or if both of its inputs are true , then the output of the XOR gate is false.