How many latches will a state machine with 28 states require? Apply the design process presented in Section 11.2 to design a two-bit up/down counter using the input direction such that when direction...

How many latches will a state machine with 28 states require? Apply the design process presented in Section 11.2 to design a two-bit up/down counter using the input direction such that when direction = 0, the system decrements (00 ? 11 ? 10 ? 01 ? 00) and when direction = 1, the system increments (00 ? 01 ? 10 ? 11 ? 00).