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1. (3 pts) Design a combination lock with two inputs, X1 and X2. Open for the sequence X1, X2, X2, X1. State any assumptions

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0%, 0%,4% = x, X2 state diagram 10/0 10%, 0%, 0%,% 00% 10% 00/0) 1010, 11/o 11/01 olo OVO 0 four states lets consider Joo -K-map - - - - - 0 0 - 0 - 0 - 0 - 0 0 0 0 0 0 0 state tablet for - - 0 0 0 Dir x,x) present D : , , % % + , 0 - - 0 0 - - 0 0K-map for K-map fe z Do 10 % ; º 00 = 1000010 Do = x, x₂ Qão + x, X2 e o Z= x, Fq Q Qo (output) D-fliptop D-fliptop

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