Jawaharlal Nehru Technological University Kakinada 2009 B.Tech Information Technology Embedded systems - Question Paper

Code No: N0501 Set No.2
IV B.Tech. I Semester Regular Examinations, November -2009
EMBEDDED SYSTEMS
(Common to Computer Science & Engineering,InformationTechnology,Electronics & Control Engineering and Computer Science &Systems Engineering)
Time: three hours Max Marks: 80
ans any 5 ques.
All ques. carry equal marks

1. (a)Explain with an example,the structural description of system components.
(b)What is specification?Distinguish ranging from requirements and specifications.[Marks:8+8]

2. (a)Draw the programming model of 8051 microcontroller that has collection of eight and 16 bit registers and eight bit memory locations.
(b)Discuss various kinds of interrupts in 8051. [Marks:8+8]

3. (a)Discuss in detail with examples about ROTATE and SWAP operations.
(b)Write an assembly language program to OR the contents of ports one and two and then store the outcome in external RAM location 0200h.[Marks:8+8]

4. (a)Explain with suitable examples how to perform decimal arithmetic operations using relevant mnemonics.
(b)Write an assembly language program to obtain whether a number is prime or not.[Marks:8+8]

5. explain the behavior of 8051 in standard eight bit UART mode with necessary programming concepts.[Marks:16]

6. (a)Explain characteristics of a reentrant function
(b)What are events?Explain the role of events in RTOS. [Marks:8+8]


7. (a)Discuss different methods adopted to decrease power consumption in embedded applications.
(b)Explain about goal of typical testing process. [Marks:8+8]


8. discuss in detail about CAN and I^2C bus in detail. [Marks:16]

Earning:   Approval pending.