Describe a 4-input priority encoder and its output behavior.

Describe a 4-input priority encoder and its output behavior.

• A. Outputs represent the index of the highest-priority input that is 1; if none are 1, outputs are all 0.
• B. Outputs equal the OR of inputs; if multiple inputs are 1, multiple bits are set.
• C. Outputs represent the sum of inputs in binary.
• D. Outputs are the inverse of the highest-priority input.

Answer: (A)