Osmania University (OU) 2006-2nd Sem B.E Electronics & Tele-Communication Engineering 3/4 (E.C.E)(ESTER)SUPPLEMENTARY ,IL, Microprocessors and micro controller based system design - Question Pap
B.E 3/4 (E.C.E)(II-SEMESTER)SUPPLEMENTARY EXAMINATION,APRIL,2006
Microprocessors and micro controller based system design
Code No. 10394
FACULTY OF ENGINEERING B,E. 3/4 (ECE) H-Semester Main Examination, April 2006 MICROPROCESSORS & MICROCONTROLLER BASED SYSTEM DESIGN Time .Three Hours] [Maximum Maries: 75
Note: Answer ail questions from Part A and any FIVE questions from Part B.
PARTA (Marks: 25)
1. What is the function ofTF in 8086?
2. State the addressing mode and the result of executing the following instruction:
MOV AX, 4[BX], [SI].
3. Give a method of generating chip selects for even and odd addressed byte ports interfaced to 8086.
4. Draw a neat 8086 bus cycle timing diagram for Memory Read.
5. What is the purpose of Instruction Q in 8086 ? How is speed up achieved through pipelining ?
6. G i ve the addresses for SFRs, TMOD and TCON in 8051. What are these functions used for ?
7. What is the purpose of EA pin in 8051 ?
8. What is RS-232 standard ? Give the signal levels.
9. Give the programming model of80386.
10. What are the functions ofBIST in Pentium ?
PARTB (Marks: 5*10=50)
11. (a) What is the difference between minimum mode and maximum mode operations of8086 ?
(b) Give a schematic for minimum mode 8086 system.
12. (a) List the architectural differences between 8086 and 80386.
(b) What is wrong with the following instructions ? Correct them and specify the operation:
(i) MOV [BX], [DI]
(ii) MOV BL, CX
(iii) MOVDS,SS
13. (a) List five addressing modes of8086 with suitable examples.
(b) Suppose EAX = 00001000H, EBX = 00002000H and DS = 001 OH. Determine the address accessed by the following instructions:
(i) MOV, ECX, [EAX + EBX]
(ii) MOV, [EAX + 2* EBX], CL.
14. A ! 2-bit ADC is to be interfaced to 8086 system. Design a suitable scheme and give all details. Write an ALP to read a set of samples from an input analog source and store it in memory.
15. (a) Give the architecture of8051.
(b) It is required to interface 32K * 8 RAM to 8051. Give a suitable scheme.
(c) Write an 8051 ALP to store a constant into (30H - 34H) of RAM using stack operations.
16. (a) What are assembler directives ? List five assembler directives and explain.
(b) Compare Pentium features with 80386 features.
17. Write short notes on:
(a) Assemblers
(b) Data Flow architectures
(e) Memory Management in 8086.
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| Earning: Approval pending. |
