4. (TCOs 1 and 2) Write the VHDL assignment operator for the Y1 output of a BCD-

Question

4. (TCOs 1 and 2) Write the VHDL assignment operator for the Y1 output of a BCD-to-binary encoder. Use Boolean operators, D0-D9 as the data inputs lines and Y0-Y2 for the outputs. Inputs and outputs are active-HIGH. (Points : 5) 5. (TCO 1) In your own words, what is the function of a encoder? Briefly describe what an encoder does and what it can be used for. (Points : 5) 4. (TCOs 1 and 2) Write the VHDL assignment operator for the Y1 output of a 1-to-4 demultiplexer. Use Boolean operators, D for the data input, S0-S1 for the select lines and Y0-Y3 for the outputs.(Points : 5) 5. (TCO 1) When can a decoder be used as a demultiplexer? (Points : 5) 1. (TCO 2) A 7-segment decoder is driving a display for the number 5. How many of the decoders outputs are active? (Points : 5)       3
      4
      5
      7

Explanation / Answer

#2. The answer is 3.

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