Kurukshetra University 2010 B.Tech Microcontrollers - Question Paper
Microcontroller
ECE 415E
BT 7/DX
7th semester Kurukshetra university Total Pages : 2 8715
Roll No
BT-7/DX
MICROCONTROLLERS Paper: ECE-415(E)
Time : Three Hours] [Maximum Marks : 100
Note : Attempt five questions in all, selecting at least one question from each unit.
UNIT-I
Explain the most important application of microcontroller that you have seen actually for sale. 20
2. Differentiate between 8-bit, 16-bit and 32-bit microcontrollers. 10
Compare the major differences between Microprocessor and Microcontroller. 10
UNIT-II
3. Discuss the pin diagram of 8051. 6
(b) Discuss the RESET and CLK circuit. 7
Explain the differences between Port 0, Port 1 and Port 2 I/O pins. 7
4. (a) Define the following :
(i) SFR.
(ii) PSW. 4
(b) Explain SCON and PCON function register. 6
i
(c) Which Register holds the Serial data interrupt bits TI and RI ? Explain. 10
UNIT-III
5. (a) Discuss ACALL and LCALL mnemonics. 4 (bJExplain the various addressing modes of 8051. 8
(c) Describe the puipose of H/W Pure delay. 8
6. (a) Explain the various JMP (Jump) instructions of 8051
microcontoller. 10
(b) Explain the execution of instruction :
CJNE R7, #60H; DJN ZR9, #22H; 10
MOVC A, @ DPTR.
UNIT-IV
7. (af Discuss the interfacing of 7-segment LCD display. Write ' a program to display CONTROLLER rolling over it.
12
(b) Explain Mode 0, Mode 1, Mode 2 and Mode 3 data communication mode. 8
8. (a) Explain Hardware circuit for multiple interupt to cover
256 interupts. 8
(b) Write a program to measure the Pulse width of a pulse.
8715/2500/KD/2168
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| Earning: Approval pending. |
