Microcontroller And Applications Question Paper - Dec 16 - Electronics Engineering (Semester 5)

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Microcontroller And Applications - Dec 16

Electronics Engineering (Semester 5)

Total marks: 80
Total time: 3 Hours INSTRUCTIONS
(1) Question 1 is compulsory.
(2) Attempt any three from the remaining questions.
(3) Draw neat diagrams wherever necessary.

1.a. Describe the SCON and SBUF - SFR's in 8051.

(5 marks) 00

1.b. Explain the function of the barrel shifter in ARM7 core.

(5 marks) 00

1.c. Draw and explain the CPSR register of the ARM processor.

(5 marks) 00

1.d. Explain the concept of register banks in 8051.

(5 marks) 00

2.a. Explain the structure of the Input/Output ports of the 8051 with neat diagram.

(10 marks) 00

2.b. Explain in detail the operating modes of the ARM7.

(10 marks) 00

3.a. Write an assembly language program to transfer block of data in memory using load and store instructions of the ARM7.

(10 marks) 00

3.b. Write a detailed note on the Interrupt structure of the 8051 and explain the related SFR's

(10 marks) 00

4.a. Write an ALP for interfacing 'YES' serially at 9600 band continuously using the 8051.

(10 marks) 00

4.b. Explain the interfacing of 8051 to external memory with the help of suitable diagram (Make necessary assumptions)

(10 marks) 00

5.a. "ARM-Thumb interworking improves the code density". Justify with a neat example.

(10 marks) 00

5.b. Write a program(with and without timer) to generate a square wave on pin P1.7. Highlight the difference in the two methods.

(10 marks) 00

Write Short notes on(any three):

6.a.
DC motor interfacing with 8051.

(7 marks) 00

6.b.
ARM7 architecture.

(7 marks) 00

6.c. Power Saving modes of the 8051.

(6 marks) 00

6.d.
Thumb state of the ARM7.

(6 marks) 00

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