Electronics and Communication Engineering - Microprocessors

31. 

Which of the following is not an interrupt line in 8085?

A. TRAP
B. RST 5.5
C. RST 7.5
D. RST 9.5

Answer: Option D

Explanation:

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32. 

In 8085, F register has 8 bits.

A. True
B. False

Answer: Option A

Explanation:

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33. 

The general purpose register code for accumulator in 8085 is

A. 111
B. 000
C. 001
D. 1111

Answer: Option A

Explanation:

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34. 

Which of the following is not an internal DOS command?

A. VER
B. COPY
C. MEM
D. DATE

Answer: Option C

Explanation:

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35. 

In 8085, high level on INTR line can be recognised only if

A. TRAP and RST lines are high
B. TRAP and RST lines are not high
C. TRAP line is high but not RST line
D. RST line is high but not TRAP line

Answer: Option B

Explanation:

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