I came across this problem and it has a solution and everything, but I don't understand it. Here's the illustration:
So, the picture shows a crossroad which has sensors along the higher-priority DC road and the lower-priority AB road. They detect if there's a car on any of them. If there is a car in any of those roads, the sensor output is 1, otherwise it's 0. The crossroad is operated by a traffic light which functions like this:
1) W/E state of the traffic light is green if:
- both C and D roads are busy
- C or D is busy and neither A and B is busy
- no cars on the crossroad
2) N/S state of the traffic light is green if:
- both roads A and B are busy and neither D or C is busy
- A or B is busy and neither D or C is busy Implement the circuit for controlling the traffic light using only MUX 4/1 multiplexers if the inputs of the circuit are the outputs of the sensor and outputs of the circuit are states of the traffic light (1-green state, 0-red state).
The part I don't understand are the information inputs of the multiplexers. What do they represent? Please explain in detail.