M.Sc. (Electronic Science) (Semester-II) New (CBCS) Examination,
2017
PIC Microcontroller
Day Date: Monday, 24-04-2017 Max. Marks: 70
Time: 10.30 AM to 01.00 PM
Instructions Questions NO.1 and 2 are Compulsory.
Question 1 and 2 are compulsory.
Attempt any three from Q.3 to Q.
Figures to the right indicate full marks.
Use of non programmable calculator is allowed.
Q.1 Select correct alternative 8
PIC18 Fxxxx is……………. Microcontroller.
RISK CISK
RISC CISC
……… is true about PIC microcontroller.
It is an 8-bit microcontroller
It has Harvard architecture
It is a RISC CPU
All the these
Most PORT pins of PIC microcontroller can source/sink……
mA current.
1 0.5
25 100
What is the operating frequency range of HS clocking
configuration when crystal is used as a clock source?
5-200 KHz 100 KHz 4 MHz
0-4 MHz 4-20 MHz
……… instruction instructions clear the watchdog timer of
PIC.
CLEAR CLRWDT
SLEEP Both b and c
PIC microcontrollers CALL instruction takes ……. Machine
cycles to execute.
1 2
4 8
Page 1 of 2
……………….. device use MISO/MOS1 pins.
RS232 12C
SPI All of these
The address of 'row 2 column character of 16*2 LCD is…..
80h 88H
C0h FFhs
State TRUE or FALSE 6
PICI8Fxxxx microcontrollers have a-21-bit program counter.
GOTO is an unconditional jump instruction.
PIC port pins cannot drive LED directly.
PIC microcontroller is reset by holding the MCLR pin LOW.
The PIC microcontroller will enter in Brown-our Reset when
VDD rises above VBOR.
I2C is a serial protocol for one-wire interface between PIC
microcontroller and peripherals.
Q2 Give a brief account of
Features of simulator in MPLAB IDE. 5
Explain the use of watchdog timer. 5
Compare DC motor with stepper motor. 4
Q3 Explain memory organization in PIC microcontroller. 8
Write a program to generate square wave on all PORTB
pins.
6
Q4 Explain bit-oriented operations in PIC microcontroller with
suitable example program.
8
Explain rotate instructions of PIC microcontroller with suitable
examples.
6
Q5 Give a brief overview of clock sources in PIC18Fxxxx
microcontroller.
10
Write a short note on CCP module of PIC microcontroller. 4
Q6 Explain how to interface LED, ii) relay, iii) Single push
button, and iv) opt coupler with PIC microcontroller.
8
Explain C protocol. 6
Q7 Draw schematic of interfacing sensor LM35 and write a
program to display the temperature using PIC
microcontroller.
8
Interface 16*2 LCD display with PIC microcontroller and write
a program to display "temperature" on the LCD on second
line.