Kerala University 2006 B.Tech Electrical and Electronics Engineering SIXTH SEMESTER - exam paper
Reg. N< (Pages: 2) K4744
Name. ,
SIXTH SEMESTER B.Tech. DEGREE EXAMINATION
MAY / JUNE - 2006
03.602 - MICROPROCESSOR AND APPLICATIONS (E)
Time: 3 Hours Max. Marks: 100
PART-A
Answer all questions.
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1. |
What is the significance of tristate gates? |
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2. |
Briefly explain multiplexed bus. |
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3. |
Explain opcode fetch and execute cycles. |
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4. |
What are psedo instructions? Give examples. |
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5. |
What is an assembler? |
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6. |
Generate a time delay by software technique. |
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7. |
What is meant by maskable and non-maskable interrupts? |
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8. |
What is meant by memory map? |
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9. |
Briefly explain programmable interrupt controller. |
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10. |
Explain power down mode and Idle mode of 8051 microcontroller. |
(10 x 4 = 40 Marks)
PART-B
Answer any one full question from each module.
Module I
II.a. Give the internal architecture of Intel 8085 microprocessor and explain each block,
b. Distinguish between memory mapped I/O and I/O mapped I/O.
Explain the purpose of the following instruction with examples.
(i) SUBB (ii) SBB B (iii) RAR
12. a. b,
13. a. b.
14.
15.a. b
16. a, b
(iv) CMP M & (v) RLC
Write an ALP to arrange a series of numbers in ascending order.
Write a delay routine to implement a delay of 10 seconds if the processor clock speed is 3 MHz.
Draw the timing diagram for the execution of following instruction and explain.
MOV A, C In what way op code fetch cycle is different from a memory read cycle.
Write an ALP to perform multiplication by the number 10H. The program should be written in such a way that it takes minimum execution time.
Show the interfacing of 8085 with the following:
(i) 4K bytes of ROM with 2K x 8 chips.
(ii) 2K bytes of RAM with IK x 8 chips.
Explain how a set of six numbers of 7 segment LEDs can be interfaced to 8085 microprocessor using 8255 PPI.
Explain the register structure of 8051 microcontroller.
Show how an 8 bit ADC can be interfaced with 8085.
(20 Marks)
(3 x 20 = 60 Marks)
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Attachment: |
| Earning: Approval pending. |
