Punjab Technical University 2009-5th Sem B.Tech Electronics and Communications Engineering MP AND ITS APPLICATIONS- ( ) - Question Paper

MICROPROCESSOR AND ITS APPLICATIONS(2009)

part A

Q1.
(A) What is microprocessor and write differentiate it with CPU?
(B) List the sequence of events thst occurs when th 8085 MPU reads from memory?
(C) What are the control signals necessary in memory mapped I/O?
(D) Specify the register contents and the flag status a the subsequent instructions are executed.
MVI A,5EH
ADI A,2H
MOV C,A
HLT
(E) What is the cache memory? Why is its capacity small?
(F) What is the difference ranging from a CMP instruction and CMPS instruction in 8086?
(G) What are the various functional units in 8086?
(H) What is non maskable interrupt?
(I) Why subroutines are used in 8085?
(J) State the advantages of advantages over simple parallel I/O.

part B

Q2. State and discuss any 2 development tools available for writing assembly language programs for 8086.
Q3. Distinguish ranging from minimum mode system and maximum mode system.
Q4. Expalin briefly programmable interrupt controller.
Q5. discuss function of READY signal of 8085 with timing delay.
Q6. Write a note on “counters and time delay”.

part C

Q7. With the help of bllock diagram, discuss display part of 8279.
Q8. explain the following: (a) RAM and ROM (b) 8085 interrupt
Q9. discuss the working of DMA controller.

Earning:   Approval pending.