What if we used JKFFs?
Need to change State Transistion table to reflect JK input values.
Inputs Present Next J1 K1 J0 K0 Y EN State State (Q1Q0) (Q1Q0)* 0 00 00 0 X 0 X 00 0 01 01 0 X X 0 01 0 10 10 X 0 0 X 10 1 00 01 0 X 1 X 00 1 01 10 1 X X 1 01 1 10 00 X 1 0 X 10
JK FF Q transitions: 0?0 (J=0, K=X); 0?1 (J=1, K=X); 1?1 (J=X, K=0); 1?0 (J=X, K=1);