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Info on what the output of a priority encoder actually is |
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A '''priority encoder''' is a [[circuit]] or [[algorithm]] that compresses multiple [[binary]] inputs into a smaller number of outputs. The output of a priority encoder is the binary representation of the ordinal number starting from zero of the most significant input bit. They are often used to control [[interrupt request]]s by acting on the highest priority request.
If two or more inputs are given at the same time, the input having the highest priority will take [[precedence]]. An example of a single bit 4 to 2 [[encoder]] is shown, where highest-priority inputs are to the left and "x" indicates either a 1 or a 0 (i.e., either input value yields the same output when superseded by a higher-priority input).
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