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This question concerns a synchronous sequential counter, which counts an arbitrary sequence. The properties of the counter include the following: The counter has two inputs,

This question concerns a synchronous sequential counter, which counts an arbitrary
sequence. The properties of the counter include the following:
The counter has two inputs, input x and CLK(Clock), and three outputs, A,B and C. A
is the most significant digit in the counting value, and C is the least significant digit.
The counter counts under a POSITIVE clock edge.
When x is 0, the counting sequence is:
1,Y,4,2,5,1,Y,4,2,5,1,dots
When x is 1, the counting sequence is:
1,Z,6,0,3,1,Z,6,0,3,1,dots
Values of Y and Z are based on the 7th and 8th digits of your student identity number:
(E,g.,: if your student identity number is 22358285 A , the counting sequence is:
Input x is 0:,1,6,4,2,5,1,6,4,2,5,1,dots
Input x is 1:,1,5,6,0,3,1,5,6,0,3,1,dots
use the following SID number to solve this question 21084996A
(a) Write down the counting sequence of your counter under different input x values,
starting from 1 until it returns to 1.
(b) Write down the state table of your counter. You can assume that the states that do not
occur are don't care conditions.
(c) The counter is designed using JK flip-flops. List the required flip-flop inputs to the
flip-flops for each row in the state table. Hence, derive the flip-flop input equations of
the counter.
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