im not understand what this question need..can anyone help me,please..

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Design a 2 bit T counter with two input (Y & Z), no output. Your counter should have a minimum of four states. You can start with either state diagram or state table or T circuit but at the end it should include all three.

 

Refer any textbook on Digital Designing. Gud luck.

 

http://www.allaboutcircuits.com/worksheets/counters.html