Engineering B.E. (Electrical Engineering) Sem 6 December 2018 2018 Microcontroller And Its Application Question Paper - Mumbai University | munotes

Questions asked in this paper

1. Q1 Answer any four
   • (a) What is timer roll over in PIC 18? What happens after roll over? 5M
   • (b) Explain the Status Register of PIC18 Microcontroller. 5M
   • (c) Explain the pipelining concept in PIC18 Microcontroller 5M
   • (d) What is the difference between interrupt and polling? 5M
   • (e) What are the steps taken by the microcontroller when an interrupt is activated? 5M
2. Q2 (a) Which are the different addressing modes of PIC18 Microcontroller? 10M
   • (b) Explain the memory organization (Program and Data Memory) of PIC18 10M
3. Q3 (a) Explain stack and subroutine. Also explain the instructions associated with 10M
   • (b) Write a C18 program to transmit message “YES” serially at 9600 baud rate, 10M 8 bit data and | stop bit. Do this continuously
4. Q4 (a) Explain the following terminology related to PICI8 10M
   • (b) Write an Assembly language program using Timer 0 to generate a square 10M wave of 200Hz frequency on Port A pin RAO. Use 16 bit programming technique with 64 prescaler. The internal frequency is
5. Q5 (a) Explain Global Interrupt Enable (GIE) and Peripheral Interrupt Enable (PEIE) 10M concept with appropriate logical diagram. Also explain INTCON resister
   • (b) Write an Assembly language program to rotate the stepper Motor by 10M monitoring the status of switch connected to pin RC2 and do the following
   • (1) If switch = 0, the stepper motor moves clockwise
   • (2) If switch =1, the stepper motor moves anticlockwise the interfacing diagram
6. Q6 Write a short note on any two
   • (a) Seven segment LED interfacing with PIC 18 Microcontroller. 10M
   • (b) LCD interfacing with PIC 18 Microcontroller. 10M
   • (c) CCP modules of PIC 18 Microcontroller. 10M

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