Regarding the trafficlight controller problem How do you der

Regarding the traffic-light controller problem. How do you derive the state transition table for fully decoded outputs? I don\'t understand what it means by \"decoded.\"

Solution

Decoder means a simple way of performing task in opposite of encoder or encoding.

In simple words it is reverse of encoding, in this problem the decoder converts code into signals.

Decoder converts n input lines into 2^n output lines.

Here input lines are 2 so output lines are 4.

Depends upon the code the signal gets converted by using NOT and OR gates.

Coming to state transition the signal depend upon present state and future state and thereby signals get converted.