Jawaharlal Nehru Technological University Kakinada 2010-2nd Sem M.Tech Computer Science & Engineering Supplementary s Embedded Systems (CSE-CS & Engg) - Question Paper

Subject Code: B5802
M.Tech II Semester Supplementary exams June 2010
Embedded Systems
(CSE-CS & Engg)
Time: three Hours Max Marks: 60
ans any 5 ques. All ques. carry EQUAL marks


1 .a) UML is unified modeling language .Comment on this.
b) Distinguish ranging from microprocessors and micro controllers.
2. a) Draw SCON and PCON special function registers and discuss the functions of every field.
b) Draw and discuss the block diagram of 8051 micro controller.
3. a) discuss the significance of PUSH and POP opcodes.
b) Swap the bits of every nibble in register R% in such a way that bits 0 and bits one are swapped
with bits two and three and bits four and five are swapped with bits six and seven respectively.
4. a) explain the role of flags in performing arithmetic operations and also explain what
instructions affect the flag.
b) Write a program that puts 1 random number in R3 and a different in R5. Perform the
increment operation on R3 and decrement operation on R5 until they become equal
5. a) discuss the functioning of D/A converter for Davcon program.
b) discuss the working of multiple source interrupt circuit.
6. a) How memory management is done by an RTOS and also discuss why memory management
not used in embedded system.
b) discuss about the characteristics of reentrant functions.
7. a) explain different methods adopted to decrease power consumption space in embedded
applications.
b) What is
c-OS RTOS? List and discuss library functions of
c-OS RTOS.
8. a) explain about working of basic ARM programming model.
b) How CAN bus is various from I2C bus? discuss in detail.

Earning:   Approval pending.