JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B.Tech III MICROPROCESSORS AND MICROCONTROLLERS Previous Question Paper (March-2024 - 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
List the general purpose registers of 8086.
Answer
The 8086 microprocessor has four 16-bit general-purpose registers: AX (Accumulator), BX (Base register), CX (Count register), and DX (Data register).
What is Macro? Give the examples.
Answer
A Macro is a named block of assembly code that can be defined once and invoked multiple times throughout a program. During assembly, the assembler replaces each macro call with the actual sequence of instructions defined in the macro body.
Example: A macro to clear a register could be defined as:
MOV REG, 0
ENDM
Compare the microprocessor and microcontrollers.
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Write about PSW used in 8051 microcontroller.
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What is On board Communication Interface?
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Write a short note on external memory RAM.
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What is exception?
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Compare RISC and CISC processors.
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What are the advantages of OMAP?
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Explain the Priority concept in Cortex processor.
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Part B
Draw and explain signal descriptions of 8086 in minimum mode.
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Name the various Addressing modes of 8086 and explain any 3 of them.
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Write an 8086 ALP to find the sum of numbers in the array of 10 elements.
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Write an Assemble language program to add two 16-bit Hexa decimal numbers in 8051.
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Explain the Memory organization of 8051.
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Classify and explain the instruction set of 8051 microcontroller with examples.
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Draw the block diagram of Serial Peripheral Interface bus (SPI bus) and explain its working.
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Explain memory mapped I/O and I/O mapped I/O.
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Write a program for DAC Interface to 8051 microcontroller.
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Write a short note on External Communication Interfaces.
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Name various modes of ARM processor and discuss how the change of mode takes place in it.
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Discuss the main features of the ARM Processor.
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Explain the concept of thumb instructions in ARM processor.
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Draw the functional block diagram of OMAP Processor and explain working of all blocks available in it.
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What is Pipeline mechanism? Explain briefly the pipeline mechanism in Cortex processor.
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Discuss about memory access attributes of Cortex processor.
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