Roll
No......................
Total
No. Of Questtions:13
Paper
ID [ A0215]
BCA
305 (Sem.-2nd)
INDRODUCTION
TO MICTOPROCESSOR
Time : 03 Hrs.
Instruction to
Candidates:
1. Section
– A is Compulsory
2. Attempt
any Nine questions from Section – B
SECTION
– A
1.
a. Define
the term word length.
b. What
is the function of address bus and also specify the direction of information
flow on the address bus?
c. Why
are the program counter and the stack pointer 16- bit registers in 8085?
d. Explain
the function of ALE in 8085?
e. Specify
four control signals used by 8085.
f. What
are the different modes in which 8086
works?
g. List
limitations of 16- bit microprocessor .
h. What
is flag? list all the commonly used flags in 8086.
i. What
do you understand by pipelining?
j. List
the processing units of 8086.
k. What
is the requirement of interrupt
controller?
l. Explain
why each channel in 8257 DMA controller is restricted to 16K bytes of data
transfer.
m. What
is a hardware interrupt ?
n. What
is application of DMA?
o. What
is the role played by current word register in 8237?
Section
-B
2. Discuss
fetch operation and execute operation of Intel 8085.
3. Classify
8085 instruction in various groups . Give examples of instructions for each
group.
4. Write
a program for addition of two 8-bit numbers stored in memory locations FC00 and FC01 (using 8085
microprocessor.)
5. Write
a short note on CISC processors.
6. Discuss
the register organization of 8086.
Discuss the function of each register.
7. Explain
the meaning of the following 8086 instruction: LOOP,DAA, CBW,IMUL,ROR.
8. Discuss
various addressing modes of 8086.
9. Discuss
the application areas of 16-bit microprocessor.
10. Explain in detail working of 8237 DMA
controller.
11. Write a short note on
arithmetic coprocessor.
12. Discuss cycle stealing
and burst mode of DMA.
13. How will you select a
microprocessor for a particular application?
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