JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B.Tech III Year MICROPROCESSORS AND MICROCONTROLLERS Previous Question Paper (July/August - 2023 - R16)
Note: i) Question paper consists of Part A, Part B. ii) Part A is compulsory, which carries 25 marks. In Part A, Answer all questions. iii) In Part B, Answer any one question from each unit. Each question carries 10 marks and may have a, b as sub questions.
PART - A
How many general purpose registers are there in 8086 microprocessor? List them.
Answer
The 8086 microprocessor has 8 general-purpose registers: AX, BX, CX, DX, SP, BP, SI, and DI.
What is the processing of obtaining the physical memory address in 8086 microprocessor?
Answer
The physical address is calculated by shifting the 16-bit segment register value left by 4 bits (multiplying by 16) and adding the 16-bit offset address. The formula is: Physical Address = (Segment Register × 10H) + Offset Address.
What is the sequence of interrupt priority of 8051 microcontroller?
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Give an overview of 8051 microcontroller.
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Mention the difference between RAM and ROM.
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What is the difference between ADC and DAC? Where the ADC and DAC will be useful?
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What is purpose of usage of banked registers in ARM processor?
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Define about the privileged mode and non-privileged mode in processor mode.
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Mention the features of low cost debug solution in CORTEX processor.
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List out the main features of CORTEX processor.
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PART - B
Explain the following instruction set of 8086 microprocessor: i) NEG ii) DAA iii) ADC iv) CBW v) SHR
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Explain about the assembler directives used in 8086 microprocessor: i) DB ii) PROC iii) DUP iv) EQU v) SEGMENT
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Explain the addressing modes in 8086 microprocessor.
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Draw and explain the architecture diagram of 8051 microcontroller.
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Explain any one special function register of timer control of 8051 microcontroller.
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Explain PCON special function register of 8051 microcontroller.
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Explain about the usage of SPI bus.
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How it is possible to interface external communication using RS232? Explain.
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Explain the architecture of UART.
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Draw the picture of interfacing UART to 8051 microcontroller.
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Describe about the load store instructions in ARM processor.
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Write a brief note on Thumb instruction.
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Explain about the software interrupt instructions in ARM processor.
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Discuss about the program status register instructions used for ARM processor.
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Draw and explain the architecture of open multimedia applications platform processor.
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Discuss about memory protection unit, real time clock in OMAP processor.
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