Cochin University of Science and Techology (CUST) 2006-5th Sem B.Tech Information Technology Iester , , IT 402 Microprocessor Architecture And System Design - Question Paper
BTS (C) - IV - 06 - 013 (A)
B. Tech Degree IV Semester Examination, May 2006
IT 402 MICROPROCESSOR ARCHITECTURE AND SYSTEM DESIGN
(Common for 1999 & 2002 Admissions)
Time : 3 Hours Maximum Marks : 100
1* (a) Briefly discuss registers and their functions of 8085. (8)
(b) Give an account of the buses available in 8085. (6)
(c) Briefly discuss the evolution of microprocessor from Intel 4004 onwards. (6)
OR
II. (a) Draw the timing diagram corresponding to the instruction LX1, H, 5500 H. (10)
(b) Discuss machine cycle, Instruction cycle and T state. (6)
(c) Explain about buffer and latch. (4)
HI. (a) What are addressing modes? Briefly explain. (8)
(b) Draw the memory map of 16 K ROM using 2708 ROM chip, (12)
OR
IV. (a) Compare memory mapped I/O and I/O mapped I/O. (6)
(b) Write an 8085 assembly language program using minimum number of instructions to
add the 16 bit numbers in BC, DE and HL. Store the 16 bit result in DE. (8)
(c) Explain different stack related Instructions. Give suitable examples for each, (6)
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V. (a) |
Describe 8257 DMA controller chip. |
(12) |
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(b) |
Why interrupts are needed? Explain enabling disabling and masking of interrupts. |
(8) |
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OR | ||
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VI. (a) |
Discuss briefly various data transfer schemes available in 8085. |
(10) |
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(b) |
Draw the block diagram of 8255 and explain what are the different modes of | |
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operation of 8255. |
(10) |
VII. (a) Discuss microprocessor based frequency counter. (10)
(b) Explain microprocessor based temperature controller. (10)
OR
VIII. (a) Discuss with suitable diagrams, the interfacing process of an 8 bit A/D converter. (! 0)
(b) Explain with suitable diagram, interfacing process of a stepper motor. (10)
IX, (a) Discuss how indexed addressing is done in 8086. Explain segment and offset
addresses and their use. (12)
(b) Differentiate between 8086 and 8088. (8)
OR
X. (a) Discuss briefly about 8086 registers and their functions. (10)
(b) Discuss the architecture of 80286 with suitable diagram. (10)
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Attachment: |
| Earning: Approval pending. |
