4. Design Mod-6 synchronous down counter using T master slave FF. The counter continuously counts, starting from 0, going to 0-5-4-3-2-1-0 and then back to 5. Each FF in the clock cycle In order for it to switch, T input must be "1". a. Create the truth table of the counter. b. Simplify using Karnaugh diagram to design the meter. c. Verify the counter design using Logisim. (30 points) Cnt Exit Do Qo Cik Qo Di Q Cik Q