(b) Design a Mealy circuit to convert 8, 4, -2, -1 code to normal BCD code. The input and output should be serial with LSB (Least Significant Bit) first. The input X represents an 8, 4, -2, -1 Code and the output Z represent the corresponding normal BCD code. After 4 time steps the circuit should reset to the starting state regardless of the input sequence. The circuit composed of three D FFs, NAND gates and NOR gates. Any solution which is minimal for your state assignment and uses eight or fewer gates is acceptable (Assign 0000 to the reset stage). (ii) (iii) (iv) Derive a state graph and its corresponding state table with proper stage assignment. Show state assignment map. Derive FF input equations and output equation. Realize the circuit. Based on the circuit that you have designed, determine the output sequence given the following input sequence: 0000 0010 1010 0110 1110, Fill in the table below. State SO (Initial) Input 0 Output 0 (b) Design a Mealy circuit to convert 8, 4, -2, -1 code to normal BCD code. The input and output should be serial with LSB (Least Significant Bit) first. The input X represents an 8, 4, -2, -1 Code and the output Z represent the corresponding normal BCD code. After 4 time steps the circuit should reset to the starting state regardless of the input sequence. The circuit composed of three D FFs, NAND gates and NOR gates. Any solution which is minimal for your state assignment and uses eight or fewer gates is acceptable (Assign 0000 to the reset stage). (ii) (iii) (iv) Derive a state graph and its corresponding state table with proper stage assignment. Show state assignment map. Derive FF input equations and output equation. Realize the circuit. Based on the circuit that you have designed, determine the output sequence given the following input sequence: 0000 0010 1010 0110 1110, Fill in the table below. State SO (Initial) Input 0 Output 0