Question 2: The circuit below is a synchronous sequential circuit based on D-type flip-flop (DFF): X D1 D Q1° Q1 D D2 Q2 Q2 N Clk (a) Write the excitation and state equations for the two DFFs. (b) Express the output equation for the output z. (c) Determine the present and next state table and output of the circuit. (d) By using the result obtained in (c), sketch the circuit using negative-edge triggered JK flip-flops (JKFFS) and some primitive gates.

4. Design a digital circuit using three D flip-flops to control the shutdown sequence for an industrial dishwasher. The systems engineer has provided the following specification: The control circuit has one input: E (enable) The control circuit has three outputs: A, B, C When E = 0, the state of the circuit remains the same. When E = 1, the circuit outputs go through the transitions from 000 to 111 to 011 to 101, to 001, back to 000, and then repeats. Use the given signal names for the variables in your solution (E, A, B, C). Do not substitute different variable names. The flip-flop states should be the outputs. That is, make the flip-flop outputs the circuit outputs. Use don't cares in your solution for all unused states.

create the schematic needed for part b and c please

Draw a Moore-type state diagram and design a synchronous sequential circuit using D flip flops for a 1-input/1-output "sequence detector" for the sequence 11 (be sure to recognize overlapping sequences). Draw the final circuit. Draw a Moore-type state diagram and design a synchronous sequential circuit using D flip flops for a 1-input/1-output "sequence detector" for the sequence 100 (be sure to recognize overlapping sequences). Draw the final circuit. Draw a Moore-type state diagram and design a synchronous sequential circuit using D flip flops for a 1-input/1-output "sequence detector" for the sequence 110 (be sure to recognize overlapping sequences). Draw the final circuit. Draw a Moore-type state diagram and design a synchronous sequential circuit using D flip flops for a 1-input/1-output "sequence detector" for the sequence 000 (be sure to recognize overlapping sequences). Draw the final circuit. Draw a Moore-type state diagram and design a synchronous sequential circuit using D…