1. Answer B please
2. States SI, S3, S4 and $6 are to be converted to Mealy outputs, thus making the ASM chart to have four states with four Mealy outputs. Draw the new ASM chart and indicate clearly all the Mealy outputs. Design the Control unit using one flip flop per state method, indicating all the four states and the derivation of the five outputs

Table below shows the ROM map of a micro-programmed control unit with four inputs (G,X,Y and Z ) using the control address register (CAR). It uses 4:1 multiplexer with Mux =00 to select input G, Mux =01 to select for input X, Mux =10 to select for input Y and Mux =11 to select for input Z. Selection of address 0 and address 1 depends on the inputs. a) If there are altogether five outputs (A, B, C, D and E) and eight states, draw the complete block diagram of the control unit. Derive the ASM chart from the ROM map and draw the ASM chart with the corresponding state assignments (hint there should be a total of 8 states with no mealy output). b) States S1, S3, S4 and S6 are to be converted to Mealy outputs, thus making the ASM chart to have four states with four Mealy outputs. Draw the new ASM chart and indicate clearly all the Mealy outputs. Design the Control unit using one flip flop per state method, indicating all the four states and the derivation of the five outputs