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Microprocessors And Microcontrollers MCQ Questions & Answers | ECE

Learn Microprocessors And Microcontrollers MCQ questions & answers are available for a Electronics and Communications Engineering(ECE) students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. Microprocessors And Microcontrollers MCQ question is the important chapter for a Electronics and Communications Engineering(ECE) and GATE students. Page-2 section-2

Each section contains 100 MCQs on Microprocessors and Microcontrollers .
11
What is the Power supply specification for 8085 microprocessor?
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Answer & Solution
Answer: Option A
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12
Which one of the following registers of 8085 microprocessor is not a part of programming model?
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Answer & Solution
Answer: Option C
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13
In the 8085 microprocessor, the RST 6 instruction transfers the program execution to the following location:
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Answer & Solution
Answer: Option A
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14
In 8051, description of ANL A, direct is
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Answer & Solution
Answer: Option D
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15
An interrupt in which an external device supplies its address and the interrupt request, is called:
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Answer & Solution
Answer: Option D
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16
In the 8086 instruction ADD DX, [BX][CI], the addressing mode of source operand is
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Answer & Solution
Answer: Option C
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17
Which of the following is not true for a counter instruction in PLC?
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Answer & Solution
Answer: Option D
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18
In 8051, the accumulator register contains 80H and B register contains 8FH. The content of the accumulator and status of the carry flag after the addition operation are respectively,
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Answer & Solution
Answer: Option A
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19
Calculate the size of memory address space for a 16 bit data and 20 bit address bus.
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Answer & Solution
Answer: Option A
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20
The 8086 arithmetic instructions work on
1. signed and unsigned numbers
2. ASCII data
3. unpacked BCD data
Select the correct answer using the options given below:
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Answer & Solution
Answer: Option C
No explanation is given for this question. Let's Discuss on Board