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Unformatted text preview: but you may have to spread out the modules to connect everything. Max Grade P1 10 P2 10 P3 5 TOTAL TA COCO F09 HW #9 2/3 2. (10 points) Construct a 4:1, 1-bit multiplexer with a 6-input, 1-output PLA. The LW PLA wizard is under the Simulation menu. Attach a hex keyboard to the four mux inputs D4, D3, D2, D1, binary switches to the selector inputs S1, S0 , and a binary probe to the output line D_OUT . Put your name on the circuit, label all the signal lines , and step it through inputs 0-15hex with each of the four selector settings 00, 01, 10, 11. Attach a printout of your screen showing the circuit and the timing diagram, and list separately the input specification of the PLA. 6x1 PLA specifications (PLA wizard input): ? COCO F09 HW #9 3/3 3. (5 points) The input to this 74x148 is R EQ = FFFFAB77 . Mark 1 or 0 on every input of each of the six OR gates. Mark the 20 values before the inverting bubbles of the OR gates....
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- Spring '08