A sequential circuit has two inputs and two outputs. The
Chapter 14, Problem 14.8(choose chapter or problem)
A sequential circuit has two inputs and two outputs. The inputs (\(X_1\) and \(X_2\)) represent a 2-bit binary number, N. If the present value of N is greater than the previous value, then \(Z_1\) is 1. If the present value of N is less than the previous value, then \(Z_2\) is 1. Otherwise, \(Z_1\) and \(Z_2\) are 0. When the first pair of inputs is received, there is no previous value of N, so we cannot determine whether the present N is greater than or less than the previous value; therefore, the “otherwise” category applies.
(a) Find a Mealy state table or graph for the circuit (minimum number of states, including starting state, is five).
(b) Find a Moore state table for the circuit (minimum number of states is 11).
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