Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Summer 5th Sem New 2152006 Basics Of Micro Computer Systems Previous Question Paper
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?V (NEW) EXAMINATION ? SUMMER 2019
Subject Code: 2152006 Date: 03/06/2019
Subject Name: Basics of Micro Computer Systems
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Q.1 (a) Give the bit pattern of TCON register for the microcontroller 8051. Also
give significance of each bit.
03
(b) For the microcontroller 8051, Give the bit format of PSW. .register and
explain significance of each bit.
04
(c) Explain difference between microprocessor and microcontroller.
microcontroller
07
Q.2 (a) Draw and explain block diagram of traditional computer. 03
(b) For the microprocessor 8085, state T-Sates for the following instruction
(a)MVI B,09H (b)ADI 09H (c)MVI M,09H (d) MVI C,09H
04
(c) Explain IE register in the microcontroller 8051. 07
OR
(c) Explain Hardware Interrupt structure in 8085 microprocessor. 07
Q.3 (a) Explain following terms: (a) SWAP A. (b) RLC A. 03
(b) Define and explain op-code and operand. 04
(c) What is Logical operation? Explain any six instruction of Logical operation
in 8085.
07
OR
Q.3 (a) Explain structure of port 0 in the microcontroller 8051 using suitable
diagrams.
03
(b) What is jump range? For the microcontroller 8051, explain absolute, long
absolute and relative jump using instruction.
04
(c) Explain about Pin out of 8051. 07
Q.4 (a) An 8 bit number is stored in internal RAM location 45H. Write an ALP for
the microcontroller 8051 to get one?s complement of this number and store
the result in internal RAM location 46H.
03
(b) List out addressing modes of 8051 and explain any two modes in detail
with example.
04
(c) Using timing diagram, explain execution of the instruction STA 2050H. 07
OR
Q.4 (a) Explain Time-Delay for 8051 microcontroller. 03
(b) Explain about Address bus and Data bus in 8085. 04
(c) What is Stack and Stack pointer? Explain Stack operation with use of
PUSH and POP Instructions.
07
Q.5 (a) Using suitable diagram, explain generation of control signals in the
microprocessor 8085.
03
(b) Write a program to generate a delay of 500 ms at any pin of 8051. 04
(c) Program to convert 8-Bit binary number to its equivalent BCD. 07
OR
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1
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?V (NEW) EXAMINATION ? SUMMER 2019
Subject Code: 2152006 Date: 03/06/2019
Subject Name: Basics of Micro Computer Systems
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Q.1 (a) Give the bit pattern of TCON register for the microcontroller 8051. Also
give significance of each bit.
03
(b) For the microcontroller 8051, Give the bit format of PSW. .register and
explain significance of each bit.
04
(c) Explain difference between microprocessor and microcontroller.
microcontroller
07
Q.2 (a) Draw and explain block diagram of traditional computer. 03
(b) For the microprocessor 8085, state T-Sates for the following instruction
(a)MVI B,09H (b)ADI 09H (c)MVI M,09H (d) MVI C,09H
04
(c) Explain IE register in the microcontroller 8051. 07
OR
(c) Explain Hardware Interrupt structure in 8085 microprocessor. 07
Q.3 (a) Explain following terms: (a) SWAP A. (b) RLC A. 03
(b) Define and explain op-code and operand. 04
(c) What is Logical operation? Explain any six instruction of Logical operation
in 8085.
07
OR
Q.3 (a) Explain structure of port 0 in the microcontroller 8051 using suitable
diagrams.
03
(b) What is jump range? For the microcontroller 8051, explain absolute, long
absolute and relative jump using instruction.
04
(c) Explain about Pin out of 8051. 07
Q.4 (a) An 8 bit number is stored in internal RAM location 45H. Write an ALP for
the microcontroller 8051 to get one?s complement of this number and store
the result in internal RAM location 46H.
03
(b) List out addressing modes of 8051 and explain any two modes in detail
with example.
04
(c) Using timing diagram, explain execution of the instruction STA 2050H. 07
OR
Q.4 (a) Explain Time-Delay for 8051 microcontroller. 03
(b) Explain about Address bus and Data bus in 8085. 04
(c) What is Stack and Stack pointer? Explain Stack operation with use of
PUSH and POP Instructions.
07
Q.5 (a) Using suitable diagram, explain generation of control signals in the
microprocessor 8085.
03
(b) Write a program to generate a delay of 500 ms at any pin of 8051. 04
(c) Program to convert 8-Bit binary number to its equivalent BCD. 07
OR
2
*************
Q.5 (a) Define: instruction cycle, machine cycle and T-state 03
(b) Two 8-bit BCD numbers are stored in memory locations 2020H and
2021H. Write an assembly language program for the microprocessor 8085
to add these two numbers and store the BCD answer in the memory
location 2030H.
04
(c) Comparison between memory mapped I/O and I/O mapped I/O. 07
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This post was last modified on 20 February 2020