Microprocessor & Micro‑controller (EX-602) - Important Questions

Explain the internal architecture / block diagram of 8086 microprocessor including roles of EU and BIU

Derive, draw and explain the timing diagram for 8086 memory read and write operations in minimum mode.

Explain the various addressing modes of the 8086 microprocessor with suitable examples.

Describe memory segmentation in 8086 and execute segment-register based data transfer and addition code to find memory contents

Explain the concept and purpose of stack and the 8086 stack structure.

Write an 8086 assembly language program for the addition of a series of 100 8-bit numbers.

Explain physical address formation in 8086

Explain the function of the opcode prefetch queue in 8086

Write an 8086 assembly language program to find the square root of data from 1 to n using a lookup table.

Memory organization and interfacing with 8086 microprocessor and how memory is accessed

Write an 8086 assembly language program to multiply a constant value to a sequence of data from 1 to n stored in memory.

Describe the pin configuration of 8086 microprocessor.

Explain the working/operation and architecture of the 8257 DMA controller with block diagram, including DMA importance and priority/control signal management

Explain the internal architecture of the 8254 programmable interval timer.

Differentiate between memory-mapped I/O and isolated (peripheral-mapped) I/O, including advantages and disadvantages.

Draw the block diagram / discuss the architecture of the 8255A programmable peripheral interface and explain each block and its working.

Given an 8255 control word, determine the mode of Port A, input/output status of Port B, and configuration of Port C.

Explain the modes of operation of the 8255.

List the registers available in 8257 DMA controller and explain their functions

Write a short note on the 8251 USART.

Explain the block diagram and function of each block of the 8251 USART.

Explain the interrupt structure of the 8051 microcontroller, including associated registers and priority handling for simultaneous interrupts.

Explain the various addressing modes of 8051 with examples / supporting instructions, including role and advantages such as direct addressing.

Explain the memory organization of the 8051 microcontroller.

Explain the function of the accumulator and determine the final content of accumulator A after given logical operations.

Explain the 8051 instructions PUSH, ACALL, DJNZ and SETB.

Describe pin configuration the 8051 microcontrollers.

List and explain the various features of the 8051 microcontroller.

Write an 8051 program to complement the accumulator 900 times.

Draw the pin diagram of 8051 microcontroller and explain its port structure.

Write an 8051 assembly program to perform four arithmetic operations on two 8-bit data.

Explain the architecture and working of the 8051 microcontroller with functional block diagram.

Give an overview of the 8051 instruction set.

Explain the serial communication modes of 8051, including comparison of mode 1 and mode 3

Explain interfacing of 8051 microcontroller with both ADC and DAC, including need, block diagram and applications

Explain the operational features of the TMOD and TCON timer registers with block representation.

Explain interfacing of ADC with 8051 microcontroller

Explain the design of an 8051-based thyristor firing circuit. How can timing be controlled accurately?

Describe the handshaking signals of RS-232.

Explain interfacing of stepper motor to 8051 microcontroller.

Explain how to interface/connect the 8051 microcontroller to RS-232 serial communication.

Explain interfacing of DAC chip with 8051 microcontroller

Draw and explain the functional block diagram of the 8096 microcontroller.

Write short notes (any two) covering control and status registers of 8096 microcontroller and stack structure of 8086

Draw and explain the functional block diagram of the 8096 in detail and explain how it is superior to the 8051.

Explain the addressing modes of 8096 with suitable code examples.

Write about the memory organization of 8096 microcontroller.

Explain the memory status and complete instruction set of the 8096 microcontroller.

Classify instruction set of 8096 microcontroller and explain its addressing modes.

Explain the control and status registers of 8096 microcontroller

What are the hardware features of 8096? Explain in detail.

Explain the instruction set of the 8096 microcontroller.

Write short notes on any two of the following :