MICROPROCESSOR AND ITS APPLICATIONS (EC-501) - Important Questions

Differentiate and compare RISC vs CISC processors, including their salient features.

Draw and explain the architecture of 8086 microprocessor, including tasks of BIU and EU

Draw and explain the memory read / read machine cycle timing diagram of 8086 in minimum mode

Explain the register organization of the 8086 microprocessor, including the format of the flag register.

Describe minimum mode and maximum mode operation of 8086

Explain the salient features of advanced microprocessors. Compare RISC and CISC processors.

Explain the concept of pipelining in microprocessors

Calculate execution time for an instruction requiring 4 T-states with 5 MHz 8086 clock

What are maximum mode and minimum mode operation of 8086? Explain in detail.

Discuss the salient features of 80286 and 80386 microprocessors.

Explain advantages of memory segmentation in 8086 and show with example how physical address is formed

Draw the timing diagram for execution of the instructions LXI H, 5000H and MVI A, FFH

Explain the addressing modes of the 8086 microprocessor with examples.

Explain / give an overview of the instruction set of 8086 microprocessor with examples

Write an 8086 assembly language program to add two numbers / add contents of memory locations and store the result.

Describe data copy / data transfer instructions of 8086

Explain various addressing modes of 8086 and write an 8086 assembly program to add an array of 10 numbers.

Write an assembly language program to arrange given numbers in ascending order.

Explain the instructions CMP, PUSHF, SAR, RCL and ADD

Write an 8086 assembly language program to find the largest number in a data array.

Write an 8086 assembly language program to find the frequency (number of occurrences) of a given data byte in an array.

Explain addressing modes available in 8086 with example and show PSW content after MOV A, 9CH; ADD A, 64H.

Write an 8086 program to clear the 4 least significant bits of BL without changing other bits and store result in BH.

Difference between CALL and JMP instructions of 8086

Explain memory interfacing with 8086 microprocessor with suitable diagram.

Explain the architecture, block diagram and operation of the 8255 Programmable Peripheral Interface chip.

Explain ADC interfacing with 8086 microprocessor including 0808/0809 block diagram.

Explain ADC and DAC interfacing with microprocessor.

Differentiate between BSR mode and I/O mode operations of 8255.

Interface two 4K $\times$ 8 EPROM chips with 8086 using suitable memory map.

Explain the 8155 interfacing chip including its functional block diagram.

Describe the working of 8255 in BSR mode and I/O mode.

Explain why 8086 memory is organized into even and odd banks.

Explain how to generate a square wave using the 8255 in BSR mode.

How will you interface DAC chip to 8086 microprocessor and explain how it will read converted data?

Explain Mode-1 operation of the 8255 when its port is working as an output port.

Explain the architecture, functional block diagram, working, operation and programming of the 8253/8254 Programmable Interval Timer

Explain the working of the 8251 USART with block diagram.

Describe the 8254 programmable interval timer with its functional block diagram.

Draw and explain the block diagram of the 8259A programmable interrupt controller, including its major components and their functions.

Describe the control word of the USART.

Explain the register organization of the 8257 DMA controller.

Explain the need for an interrupt system in microprocessor-based systems.

Explain USART and serial data communication, and interfacing of keyboard and LED display with 8086 microprocessor.

What is the function of the Interrupt Request Register (IRR), In-Service Register (ISR) and Priority Resolver in 8259A?

Explain DMA and the architecture, working and modes of operation of the 8257 DMA controller.

Explain the various modes of operation of the 8253 Programmable Interval Timer

What are the functional features of the programmable interrupt controller 8259 and how are its interrupt properties managed?

Explain the various addressing modes of the 8051 microcontroller with examples.

Draw and explain the architecture / block diagram of the 8051 microcontroller.

Describe/explain the interrupts and interrupt structure of the 8051 microcontroller.

Explain the uses and applications of microcontrollers (and microprocessors) in embedded and real-time systems.

Explain the I/O ports, interrupts and addressing modes of the 8051 microcontroller.

Explain embedded systems and the role of microcontrollers in embedded systems, and write an 8051 program to generate a square wave using Timer-0.

Differentiate between microprocessor and microcontroller in detail.

Explain the function of specific 8051 pins: ALE, Port 0 (P0.0-P0.7), PSEN, and RST.

Draw the pin diagram of the 8051 microcontroller and explain the function of each pin.

Define what an embedded system is and give the classification of embedded systems.

What are the special function registers (SFRs) of the 8051 microcontroller?

Explain on-chip vs off-chip (external) program memory access in 8051, including pins/signals used, and SFRs used in serial communication.