JNTU
JNTU B.Tech IV MICROPROCESSORS AND MICROCONTROLLERS Previous Question Paper (July - 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
What will happen if a label within a macro is not declared local?
Answer
If a label within a macro is not declared local, the assembler will generate a 'Symbol already defined' error upon the second call of the macro. This occurs because the assembler attempts to define the same label name multiple times in the global symbol table, causing a naming conflict.
Discuss about the 8086 interrupt types.
Answer
The 8086 processor supports 256 interrupt types (00H to FFH), which are categorized into three groups: Hardware Interrupts (Non-maskable NMI and Maskable INTR), Software Interrupts (triggered by INT n instructions), and Exceptions (internal processor errors like divide-by-zero or single-step execution). These are mapped via the Interrupt Vector Table (IVT) located in the first 1KB of memory.
What are the Addressing Modes for a Micro Controller?
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How many ports are available in 8051 micro controller? What are they?
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What is SPI bus?
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Describe about LCD display of 8051 microcontroller.
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Differentiate ARM and Thumb instruction set features.
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Give different applications of ARM processors.
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List the registers used in OMAP Processor.
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Briefly discuss the pin diagram of CORTEX processor.
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Part B
Explain the register organization of 8086.
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Explain the physical memory organization of 8086 system.
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Discuss in detail the various signals of 8086.
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Write an 8086 assembly language program to sort an array of data in descending order.
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Explain in detail about the special function register of 8051 in detail.
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Explain the instruction set of 8051.
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Write an ALP to multiply the given number 48H and 30H using 8051 microcontroller.
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Explain about the Timers of 8051 and the Registers used for 8051 Timers.
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With neat sketch, explain the function of external memory RAM and ROM with 8051 microcontroller?
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Discuss in detail about RS232 interface.
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With neat sketch, explain the function of DAC with 8051 microcontroller?
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Explain in detail about USB communication interface.
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With a neat diagram, explain the different general purpose registers of ARM processors.
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Mention about the program status register instructions in ARM processor.
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Write ARM data processing Instructions.
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Explain PSR Instructions with examples.
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Briefly discuss about the interrupts in CORTEX processor.
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Design the block diagram for OMAP processor.
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Explain Memory processing and commands used in OMAP processor.
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Write a Simple Program using Instructions of CORTEX processor.
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