This is a Question Papers of Mumbai University for B.Sc.IT Student of Semester - II [Microprocessor and Microcontrollers] (Revised Course). [Year - September / 2013] . . .Solution Set of this Paper is Coming soon..

1. M i c r o p r o c e s s o r & M i c r o c o n t r o l l e r
Q u e s t i o n P a p e r ( S e p t e m b e r – 2 0 1 3 ) [ R e v i s e d C o u r s e ]
1 | Page
M u m b a i B . S c . I T S t u d y
F a c e b o o k | T w i t t e r | I n s t a g r a m | G o o g l e + | Y o u T u b e
– Kamal T.
Time: 3 Hours Total Marks: 100
N.B.: (1) All Questions are Compulsory.
Q.1 Attempt Both The Question: (10 Marks)
(A) Give classification of memory. (5)
(B) What is latch? Describe its function. (5)
Q.2 Attempt Any Three From The Following: (15 Marks)
(A) Distinguish between SRAM and DRAM. (5)
(B) Explain encoder with suitable example. (5)
(C) Explain Tri-State Buffer in detail. (5)
(D) Explain related to memory: –
(i) Expanding Memory (ii) Expanding Ward Size
(5)
Q.3 Attempt Any Three From The Following: (15 Marks)
(A) State functions of ALU of 8085. (5)
(B) What is flag? List and describe the flags of 8085. (5)
(C) Write short note on 8085 Address, Data and Control Bus. (5)
(D) State and describe the Interrupt Signal available in 8085. (5)
Q.4 Attempt Any Three From The Following: (15 Marks)
(A) Classify the instructions on the basis of style length with example. (5)
(B) Write an assembly language program to find the smallest number from memory block
starting from 2000 H to 2005 H and store largest number in 2020 H.
(5)
(C) Explain following instructions in 8085: –
(i) ADI Data 8 (ii) STAX rp (iii) ANA r (iv) J-condition Address (v) RAR
(5)
(D) Explain the Programming Model of 8085. (5)
Q.5 Attempt Any Three From The Following: (15 Marks)
(A) What is the benefits of RAID? (5)
(B) What is Cache Memory? Why it is needed? (5)
(C) What is fetch? Execute and instruction Cycle? (5)
(D) Explain the features of PCI Bus. (5)

2. M i c r o p r o c e s s o r & M i c r o c o n t r o l l e r
Q u e s t i o n P a p e r ( S e p t e m b e r – 2 0 1 3 ) [ R e v i s e d C o u r s e ]
2 | Page
M u m b a i B . S c . I T S t u d y
F a c e b o o k | T w i t t e r | I n s t a g r a m | G o o g l e + | Y o u T u b e
– Kamal T.
Q.6 Attempt Any Three From The Following: (15 Marks)
(A) Explain the features of 8051 Micro-Controller. (5)
(B) Explain all 8051 flags of Micro-Controller. (5)
(C) Explain the operations of stack in 8051 Micro-Controller. (5)
(D) Explain how you will select Internal Memory Bank with suitable example. (5)
Q.7 Attempt Any Three From The Following: (15 Marks)
(A) Explain the features of Input/output ports of 8051. (5)
(B) Explain various addressing modes of 8051. (5)
(C) Explain the following instructions of 8051: –
(i) MOVX A1 Rp (ii) INC A (iii) Add R1 Rr (iv) MUL AB (V) RLA
(5)
(D) Write a program to perform in 8051 BCD addition of two-8bit numbers. Data is stored
in data memory location 51H, 52H and store the result in data memory. Location 53H
and carry in 51H.
(5)