(Solved): 1. 2. 1. Using a truth table as a starting point, design a circuit that takes a two-bit input (SW ...

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1. Using a truth table as a starting point, design a circuit that takes a two-bit input (SWO, SW1) and turns on one of 4 LEDS (LEDO, LED1, LED2, LED3) connected to the output, so that a 00 input turns on LEDO, 01 turns on LED1 and so on. (Note: only one output can be active at a time) 2. Write the expression for each output column in the truth table. 3. In LogiSim, construct 4 circuits to represent the expressions derived in the first step. A simple 2-to-1 line multiplexer has two data inputs; A and B and a select line input called S. When the select line is 0, the A input passes through to the output. When the select line is 1, the B input passed through to the output. According to the description given in step 1, design a 2-to-1 MUX by: completing the truth table, KMAPing the output, generating a simplified Boolean expression and implementing the expression using a logic circuit. In LogiSim, construct the required circuit and verify its operation. Personalize the circuit (name, label, ... etc.) and print it for inclusion with your prelab. A simple 1-to-2 line demultiplexer has one data input X and a select line input called S. When the select line is 0, the X input signal passes through to the A output. When the select line is a 1, the X input signal passes through to the B output. According to the description given in step 4, design a 1-to-2 DEMUX by completing the truth table, KMAPing the output, generating a simplified Boolean expression and implementing the expression using a logic circuit. In LogiSim, construct the required circuit and verify its operation.