Electronics and Communication Engineering - Digital Electronics

36. 

In order to enable TRAP interrupt, which of the following instructions are needed?

A. El only
B. SIM only
C. El and SIM both
D. None

Answer: Option D

Explanation:

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37. 

If modulus is less than 2N, some states of the counter are skipped by using NAND gates.

A. True
B. False

Answer: Option A

Explanation:

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38. 

Two 16 : 1 and one 2 : 1 multiplexers can be connected to form a

A. 16 : 1 multiplexer
B. 32 : 1 multiplexer
C. 64 : 1 multiplexer
D. 8 : 1 multiplexer

Answer: Option B

Explanation:

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39. 

What are the contents of the accumulator after the RIC has been executed?

A. 40 H
B. 41 H
C. 42 H
D. 43 D

Answer: Option D

Explanation:

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40. 

Assertion (A): In a magnitude comparator IC the cascading inputs provide a means to cascade the 4 bit comparators

Reason (R): A magnitude comparator has three outputs, A = B, A > B and A < B

A. Both A and R are correct and R is correct explanation of A
B. Both A and R are correct but R is not correct explanation of A
C. A is true, R is false
D. A is false, R is true

Answer: Option B

Explanation:

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