Microprocessor & Interfaces

Microprocessor and Its Interfacing Assignment Questions   Instructions: ·          Solve any 8 questions in each section. ·          Make appropriate assumptions wherever necessary. Unit – I 1.       What is a microprocessor? What is a flag? Why are the program counter and the stack pointer 16-bit register? 2.       List the major features of 8085 microprocessor. 3.       List the allowed register pairs of 8085. 4.    What is microprocessor? Give the power supply & clock freqency of 8085 5.    List few applications of microprocessor-based system. 6.    What are the functions of an accumulator? 7.    List the 16 – bit registers of 8085 microprocessor. 8.    Define flags? What is the use of ALE? 9.       Explain the need to ...

 1.  Store 8-bit data in memory   Statement: Store the data byte 32H into memory location 4000H. Program 1: MVI A, 52H  : Store 32H in the accumulator STA 4000H  : Copy accumulator contents at address 4000H HLT              : Terminate program execution Program 2: LXI H           : Load HL with 4000H MVI M                   : Store 32H in the memory location pointed by HL register pair (4000H) HLT              : Terminate program execution The result of both programs will be the same. In program 1 direct addressing instruction is used, whereas in program 2 indirect addressing instruction is used. Exchange the contents of memory locations Statement: Exchange the con...