MU Electronics and Telecom Engineering (Semester 5)
Microcontrollers and Applications
December 2014
Total marks: --
Total time: --
INSTRUCTIONS
(1) Assume appropriate data and state your reasons
(2) Marks are given to the right of every question
(3) Draw neat diagrams wherever necessary


1 (a) Explain Concept of Cortex-A, the Cortex-R, and the Cortex-M.
5 M
1 (b) Explain SCON register of 8051.
5 M
1 (c) Explain features of ARM 7.
5 M
1 (d) Write short note on CPSR.
5 M

2 (a) Draw and explain internal structure of Port 0 and Port 3 of 8051.
10 M
2 (b) Design a microcontroller system using 8051 microcontroller, 8 KB EPROM & 8 KB RAM.
10 M

3 (a) Interface 8051 with four, 7-segment displays and write assembly language program to display 2014"."
10 M
3 (b) Interface 8051 with DAC 0808. WAP to generate triangular waveform.
10 M

4 (a) Draw and explain dataflow model of ARM 7.
10 M
4 (b) Design an IR based wireless communication system.
10 M

5 (a) Explain ARM instructions
i) CMP R0, R1, LSR#7
ii) ADDS Rd, Rm, Rs
iii) LDR Rd, [RS]
iv) CMN R0, R1
AND R0, R0, #3.
10 M
5 (b) Explain digital camera as an example of embedded systems.
10 M

6 (a) Timer modes of 8051.
10 M
6 (b) Addressing modes of ARM 7.
10 M



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