March 5, 2010


Computer Science and Engineering
(Regulation 2004)

Time: Three hours Maximum: 100 marks
Answer ALL questions

PART A – (10 ´ 2 = 20 marks)
1. Name the various Flag bits available in an 8085 microprocessor.
2. Give the significance of SIM and RIM instruction available in 8085.
3. What do you mean by pipelining in an 8086 processor?
4. How the 20 bit effective, address is calculated in an 8086 processor?
5. What is the purpose of CLK signal in an 8086 system?
6. What is the use of Latch signal on the AD0 – AD15 bus in an 8086 system?
7. Name the two modes used by the DMA processes to transfer data.
8. Name the six modes of operations of an 8253 programmable interval timer.
9. Differentiate a microprocessor and a microcontroller.
10. Differentiate RRA and RRCA instruction in 8051 microcontroller.

PART B – (5 ´ 16 = 80 marks)
11. (a) (i) With a neat block diagram explain the architecture of an 8085 Microprocessor? (12)
(ii) List out the Mask able and Non – Mask able interrupts available in an 8085 processor. (4)
(b) (i) How do the instructions of 8085 is classified based on their functions and word length? Give an example. (10)
(ii) Write an ALP to add two 8 bit numbers.
12. (a) (i) With the neat sketch explain the architecture of an 8086 processor.
(ii) Give the significance of O Flag, T Flag and I Flag, D Flag of 8086. (4)

(b) (i) Explain in detail about the various addressing modes used in 8086 processor? Give an example. (12)
(ii) Name the various segment registers and their usage in 8086 processor. (4)
13. (a) (i) Explain the MIN/MAX mode operation of an 8086 processor. (10)
(ii) Give a note on the role of a decoder in memory interfacing with example. (6)
(b) (i) Explain in detail about the 8086 memory banks and the associated signals for byte and word operations.
(ii) Give the significance of RQ/GTO and IO/M signals. (4)
14. (a) (i) With a neat sketch kand explain the operation of an Interrupt controller(8259) (14)
(ii) What jis the use of CAS0, CAS1 and CAS2 signals?
(b) Draw the block diagram of a DMA controller (8237) and explain its operation.
15. (a) (i) With the help of a functional block diagram explain any one application of 8051 microcontroller. (16)
(b) Give the PIN details of an 8051 microcontroller and explain. (16)



Post a Comment

Get Syllabus in your Mail


Accenture Admission Notice - 2010 Admission Notification Anna University Anna University Chennai Anna University Question Papers Anna University Trichy Apparel Technology and Management Aptitude Questions Arts and Science Colleges Biomedical Engineering C and CPP Ebooks Calicut University CBSE Question papers Civil Engineering Civil Service Exams Colleges in India Colleges Result Computer Science Engineering Core Jobs CS R2008 CSE CSIR NET EBooks Download ECE EEE EIE Electives Electrical and Electronics Engineering Electronics and communication Electronics and Instrumentation Engineering Engineering Engineering Colleges in Maharashtra Engineering Colleges in TamilNadu Engineering Admissions Engineering Colleges Engineering Colleges in Karnataka Engineering Jobs Engineering Syllabus Entrance Exam Dates Entrance Exam Results Entrance Examination Exam Time Table Experiencer First Year Syllabus Freshers Full Time Jobs Government jobs in india Hardware and Networking Jobs Hotel Management and Catering Technology IGNOU Information Technology INTEVIEW QUESTIONS IT Jobs JNTU Question Papers Jobs in Bangalore Jobs in Chennai Jobs in Coimbatore Jobs in Delhi Jobs in Hyderabad Jobs in India Jobs in Kerala Jobs in Noida Jobs in Tamilnadu Jobs in TATA Karnataka Educations Lab Manuals Mechanical Engineering Medical Colleges Placement Papers Plus 2 Preparation for exams Private Jobs in India Question Papers Question Papers Download Results Announcement Semester 1 Semester 2 Semester 3 Semester 4 Semester 5 Semester 6 Semester 7 Semester 8 Syllabus Syllabus Download Tamil Movie TCS Placement Papers Teaching Jobs TECH MAHINDRA Textile Technology Top colleges University Results UPSC VICEVESVARAYA TECHNOLOGICAL UNIVERSITY waec Walk-in Interview Web Designers




Privacy Policy use third-party advertising companies to serve ads when you visit our website. These companies may use information (not including your name, address, email address, or telephone number) about your visits to this and other websites in order to provide advertisements about goods and services of interest to you. If you would like more information about this practice and to know your choices about not having this information used by these companies, click here.