Microprocessor and Interfacing — Summer 2025

Explain bus organization in 8085 Microprocessor

Explain general purpose registors in 8085 Microprocessor

Explain de-multiplexing of AD – AD in 8085 microprocessor with07 suitable diagram

Explain function of following 8085 pins (1) READY (2) HLDA (3) X1 & X2

Draw timing diagram of instruction MOV A , B

Explain flag register of 8085 Microprocessor with diagram

Draw and explain architecture of 8085 Microprocessor

Explain function of given instructions : (1) DAD (2) LHLD (3) XCHG

Explain indirect addressing mode in 8085 with examples

Write an assembly language program to find smallest number from numbers stored at memory location 1000H and 1001H. Store result on memory location 2000H

Explain function of given instructions : (1) ANI (2) RLC (3) SIM

Explain registor addressing mode in 8085 with examples

Write a set of 8085 assembly language instructions to generate a 1 second delay, if the crystal frequency is 1 MHz.

Define (1) Stack (2) Counter (3) Time Delay

Explain subroutine in 8085 Microprocessor with example

Draw and explain input and output handshake mode of 8255A

Differentiate maskable and non-maskable interrupts in 8085 Microprocessor

Explain control registor in 8255A with diagram

Explain Programmable Interrupt Controller 8259A

Describe operating modes in 8086 Microprocessor

Explain segment registers in 8086 Microprocessor

Draw and explain architecture of 80286 Microprocessor

Differentiate GDT and LDT in 80286 Microprocessor

Explain registor organization in 80386 Microprocessor

Draw and explain pin diagram of 8086 Microprocessor