Write a python code to create a 4-bits counter that counts from 0 to 9 and displays the output on LEDs. a pushbutton for reset is needed

The circuit below is a 4-bit shifter with 2 control inputs s1 and s0, 4 data inputs 13, 12, 11, and 10, and 4 data outputs Q3, Q2, Q1, and Q0. If the input 13 12 11 10 = 1101, what is the final output when s1 s0 = 01 and then 11 next clock cycle ? 13 12 I1 IO s1 s0 Q3 Q2 Q1 QO 0000 0010 0110 O 1010

2. Picture a typical 7-segment LED display (e.g. one digit of a typical digital alarm clock). Your task is to design a combinatorial circuit that controls whether the top-left (LED z_3). LED z_3 is lit for numbers 0, 1, 2, 3, 4, 7, 8 and 9; and blank for all other inputs (including invalid inputs). 2:0123456789 A. Write the truth table for this circuit. (LED z_3 only) B. Express the truth table in Sum-of- Products form. C. Draw the logic diagram for this combinatorial circuit in "PLA-Style". (Hint: Use a ruler or straight edge for wires.)

How many bits does the state register need to be able to hold if the FSM has 11 states?