III B.Tech I Semester Regular Examinations, November 2007 INTERFACING THROUGH MICROPROCESSORS ( Common to Computer Science & Engineering, Information Technology and Computer Science & Systems Engineering) Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ?????
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1. (a) If an absolute address of the type 6A3D9H is given, express it in the form of CS : IP and explain what are the advantages of the memory segmentation. Discuss about the various segment registers in 8086.
(b) What are the modes in which the 8086 can be used .How many lines are there in the multiplexed bus of 8086. Give the pin diagram separately for each mode of operation. [8+8]
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2. (a) What happens if the .WHILE 1 instruction is placed in a program ?
(b) Using the DO-WHILE construct, develop a sequence of 8086 instructions that reads a character string from the keyboard and after the enter key is typed, the character string is displayed again. [4+12]
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3. (a) What is a procedure ? How is a procedure identified as near or far ? (b) Explain how the near and far CALL instructions function.
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4. (a) A 74 LS 138 decode has its three select inputs connected to A12 , A13 , A14 of the system address bus. It has G2A connected to A15 , G2B to RD and G1 and connected to +SV. Determine the memory map which the system can address to using 8 number of Roms. Why is RD used as one of the enables on a Rom decode ?
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(b) Write an 8086 routive to test the system RAM ub addresses 00200H through 07FFFH. [10+6]
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5. An 8086 system has a DMA controller 8257 interfaced such that address of its mode set register is F8H and address of its DMA address register of channel 0 is F0H. Write an ALP to read 2K bytes of data from location 5000H:2000H in the system memory to a Peripheral on channel of the DMA controller. Disable all other channels, program TC stop, No autoload is required, fixed priority [16] 6. (a) Design a circuit to activate a actuator, based on a bit combination given by eight switches interfaced to a microprocessor (b) Design a interface circuit to feed numbers 0-9 through a linearly encoded switches and to display the number on a seven segment LED through a microprocessor [8+8]
7. Explain with a block diagram how a stepper motor can be interfaced to a microprocessor and explain its working. [16] 1 of 2
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Code No: RA310501
8. (a) What is the difference between synchronous and asynchronous serial data transmission? (b) What is the difference between UART and USART?
RA310501 III B.Tech I Semester Regular Examinations, November ...
It has G2A connected to A15, G2B to RD and G1 · and connected to +SV. Determine the memory map which the system can · address to using 8 number of Roms ...
(b) Draw the block diagram of a biological control system when a human hand · approaches to an object to grip it. Discuss the functions of various elements.
RA. III B.Tech I Semester Regular Examinations, November 2007 · ADVANCED ... (b) Prove that let T be a red black tree with n interval nodes then no node has.
2. (a) Discuss the steps involved in the ordered edge list algorithm. (b) What are the ... (b) An object point P(x,y) is translated in the direction U = aI + bJ and simulta- · neously an observer ... object about an arbitrary plane. [8+8] · 6. (a) Gi
Sketch the polar plot of the new system · & comment on how the stability of the system is affected as a result of this change. [16] · 7. (a) What is compensation?
Derive the elemental mass matrix for 1-D bar element and 1-D plane truss · element? 8.a) Explain the mesh generation schemes for 3-D problems. b) State the ...
The time required to serve a customer has an exponential distribution with · mean of 80 seconds. Determine the following : · a. Fraction of time the server is busy.
(a) Explain the pre-anesthetic care and preparation undertaken in a hospital. Why it is important? Explain. [8] · (b) How the patients are monitored during surgery ...
III B.Tech I Semester Supplementary Examinations, November 2005. POWER ELECTRONICS · (Electrical & Electronic Engineering) · Time: 3 hours · Max Marks: 80 · Answer any FIVE Questions · All Questions carry equal marks · ***** · 1. (a) Explain the oper
(c) Explain inverted paging method of memory management. [4+4+8] · 4. (a) Explain banker's algorithm for deadlock detection. (b) What are the criteria for a ...
(a) Discuss the path sensitization in a combinational circuit. shown in figure1 · (b) Find the test set to detect A1- SA0 and A1- SA1 faults using Boolean difference.
8. The convolutional encoder is given below Figure1: · Figure 1: ... (b) Construct a code tree for the convolutional encoder for 3-bit input data. [10] · âââââ.
i. plain carbon steel with 4% carbon and 0.8% manganese, ... (a) It is required to design a square key for fixing a gear on a shaft of 30 mm · diameter; to transmit ...
(b) The ground water level in a deposit of fine sand is 1.5 m below ground level. Above the water table ... is 21 kN/m3. Calculate the total stress, the neutral stress.
(b) Explain the following particle size measurement techniques. i. Sedimentation ... compaction. [6]. (b) Define Sintering and how is it different from hot pressing.
III B.Tech I Semester Supplementary Examinations, November 2005. AERO SPACE ... (b) Maximum energy theory. [16] ... plain with live examples. (b) Write a ...
4. What are the objectives of wage and salary administration function? [4+6+6] · 5. Write short notes on: · [4x4=16] · (a) Speculative purchasing · (b) Rate contract ...
(a) What are the different problems associated with measurement of low resis- · tances. Explain. (b) How these problems are eliminated by using Kelvins double ...
(b) What is score boarding and its use in RISC? [10] · 5. (a) Explain the salient features of Pentium architecture. [6] · (b) Draw the schematic blocks of Floating ...
