Multiplexer
A multiplexer's job is to select from the input data, using flags. A multiplexer is an essential piece of any circuit in Logic World.
Behaviour
A multiplexer has at least 2 inputs of any bit size, and a select input that is either:
- A bit array with a length of the number of inputs, and whichever bits are ON, their corresponding inputs get bitwise-ORed to the output.
- A value which corresponds to an input to send directly to the output.
Uses
Multiplexers are very versatile, and can be used for many circuits. Multiplexers are mainly used for:
- Selecting between registers to use in operations by the computer.
- Indexing memory.