Total No. of Questions :06 ] SEAT No.
8
23
P8573 Oct-22/TE/Insem -552
[Total No. of Pages :2
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T.E. (Electronics & Telecommunication)
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MICROCONTROLLERS
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(Semester-I) (2019 Pattern) (304184)
02 91
0:3
Time : 1 Hours] [Max. Marks : 30
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Instructions to the candidates:
1) Answer Q1 or Q2, Q3 or Q4, Q5 or Q6
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2) Neat diagrams must be drawn wherever necessary
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3) Figures to the right side indicate full marks.
4) Use of Calculator is allowed.
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80
8
5) Assume suitable data, if necessary.
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Q1) a) Draw and explain flag structure of 8051 in detail. [5]
8.2
9s
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b) Write an embedded C program to transmit character ‘D’ Serially at
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0:3
baud rate of 4800. [5]
30
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OR
01
02
0/2
GP
7/1
Q2) a) Explain the functional diagram of Timer in 8051. [5]
CE
80
8
b) Explain the interrupt structure of 8051 with vector address. [5]
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Q3) a) Explain functioning of Port 3 in details for 8051. [5]
8.2
9s
b) Write an embedded C program to display hex counter on LEDs connected
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to port 2. [5]
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0:3
30
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OR
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GP
7/1
Q4) a) Draw an interacting diagram of DAC with 8051 and write an embedded
CE
C program for generation of Triangular having frequency of 50Hz. [5]
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b) Write an embedded C program to rotate the stepper motor in
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clockwise direction continuously with highest delay generated using
16
timer 0 mode1. [5]
8.2
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P.T.O.
Q5) a) Enlist features of 8051 microcontroller. [5]
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b) Draw an interfacing of Opto-isolator with 8051 and write an embedded
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C program to flash the bulb connected to its output. [5]
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OR
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Q6) a) 7/1 13
Describe internal memory organization of 8051 with block schematic.[5]
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b) Design a DAS for the security purpose which include control of actions
0/2
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through Key, status indication by LED connected to relay and opening
of door stepper motor. Make provision of buzzer to beep. [5]
E
80
8
C
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9s
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CE
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TE/Insem-552 2
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Total No. of Questions : 4] SEAT No. :
8
23
P-5050 [Total No. of Pages : 1
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[6187]-452
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3s
T.E. (E & TC) (Insem.)
8:3
MICROCONTROLLERS
02 91
0:3
(2019 Pattern) (Semester - I) (304184)
0
31
7/0 13
Time : 1 Hour] [Max. Marks : 30
0
9/2
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Instructions to the candidates:
1) Answer Q1 or Q2, Q3 or Q4.
E
80
8
2) Neat diagrams must be drawn wherever necessary.
C
23
3) Figures to the right side indicate full marks.
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4) Use of Calculator is allowed.
16
tat
8.2
5) Assume Suitable data if necessary.
3s
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8:3
91
Q1) a) Draw and explain internal memory organization of 8051. [5]
49
0:3
30
b) Explain the interrupt structure of 8051 in detail also list vector address
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of internal & external interrupts. [5]
01
02
c) Calculate hexadecimal count to generate delay of 50 msec using
9/2
GP
Timer 1, mode 1, use clock frequency = 11.0592MHz. [5]
7/0
OR
CE
80
Q2) a) What are the different modes of operation of serial communication in
38
8051 Explain SMOD registers? [5]
c-2
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b) Compare RISC and CISC processor. [5]i
16
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c) Enlist various modes of operation of Timer & Explain in details. [5]
8.2
3s
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8:3
Q3) a) Write embedded C program to display HEX counter on LED connected
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49
0:3
to port 0. [7]
30
b) Draw an interfacing diagram of stepper motor and write embedded C
31
program to rotate it clockwise continuously. [8]
01
02
OR
9/2
GP
Q4) a) Draw an interfacing diagram to glow the lamp connected to Relay at
7/0
Port pin P1.1 and write embedded C program to make it ON and
CE
80
OFF. [7]
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b) Draw an interfacing diagram of DAC and write embedded C program
to generate a triangular wave continuously. [8]
16
8.2
.24
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Total No. of Questions : 4] SEAT No. :
8
23
PC-50 [Total No. of Pages : 1
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[6360]-51
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T.E. (E&TC) (Insem)
5:4
02 91
MICROCONTROLLERS
0:3
0
(2019 Pattern) (Semester - I) (304184)
41
4/0 13
Time : 1 Hour] [Max. Marks : 30
0
9/2
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Instructions to the candidates :
1) Answer Q1 or Q2, Q3 or Q4.
E
80
8
2) Neat diagrams must be drawn wherever necessary.
C
23
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3) Figures to the right side indicate full marks.
16
tat
4) Use of Calculator is allowed.
8.2
1s
5) Assume Suitable data if necessary
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5:4
91
Q1) a) Compare Microprocessor and Microcontroller [5]
49
0:3
30
b) Draw and explain PSW register of 8051. [5]
41
01
02
c) State salient features of 8051 microcontroller. [5]
9/2
GP
OR
4/0
Q2) a) Compare RISC and CISC processor [5]
CE
80
8
b) Explain TMOD register in detail. [5]
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c) Draw and explain internal memory organization of 8051.
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[5]
16
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8.2
1s
Q3) a) Interface 8051 with 7 segment display and write a C program to show
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5:4
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counting from 0 to 9 on to it. [7]
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0:3
30
b) Write a C program to flash 8 LEDs connected to PORT2 of 8051
41
microcontroller with timer delay program. [8]
01
02
OR
9/2
GP
Q4) a) Write a C program to send message ‘ISRO’ to COM port of PC at
4/0
9600 baud rates. Assume XTAL frequency=l1.0592 MHz [7]
CE
80
b) Describe interfacing of ADC 0808/0809 to 8051 microcontroller with
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necessary diagram. [8]
16
8.2
.24
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