Sample_Final2 - COCO 1 A question about flip flops c...

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COCO Sample Exam 2 1. A question about flip flops c. Realize the functionality of a Toggle flip flop by designing an appropriate excitation network for a D flip flop. Fill in the next state and excitation table entries. T Q Q * D 0 0 0 1 1 0 1 1 d. Obtain a minimum expression for the input D. e. Draw the schematic for the network inside the dotted outer box. Computer Components and Operations Page 1 of 6 D Q C t q clock
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A question about UP/DOWN counters c. Given below is an incomplete state transition table for a 2-bit up/down counter using D flip- flops. Fill in the missing next states, the D A B columns, and find the minimal logic equations for the D A and D B inputs, where D A and D B are inputs to the 2 D FFs. M (down/up) A B A * B * D A D B 0 0 0 0 1 0 0 1 1 0 0 1 0 0 1 1 1 0 0 1 1 1 0 1 0 0 1 1 0 1 1 1 AB M0 0 01 11 10 0 1 AB M0 0 01 11 10 0 1 Answer: D A = D B =
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3. A question about Moore vs Mealy machines This part is about a sequential machine designed to be a serial adder. There are two inputs x1 and x0 and one output
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Sample_Final2 - COCO 1 A question about flip flops c...

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