Question: 2. (14 points.) An N-bit carry-select adder uses M-bit ripple-carry blocks. The delay of a single-bit full adder used within a ripple-carry block is

2. (14 points.) An N-bit carry-select adder uses M-bit ripple-carry blocks. The delay of a single-bit full

2. (14 points.) An N-bit carry-select adder uses M-bit ripple-carry blocks. The delay of a single-bit full adder used within a ripple-carry block is T. The delay of a 2x1 multiplexer is t. What is the total time required to perform one addition for the entire N-bit carry-select adder? Determine the value of M that minimizes this time.

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