This download link is referred from the post: GTU BE 2019 Summer Question Papers || Gujarat Technological University
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GUJARAT TECHNOLOGICAL UNIVERSITY
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BE - SEMESTER-V (NEW) EXAMINATION - SUMMER 2019
Subject Code: 2150907 Date: 31/05/2019
Subject Name: Microprocessor and Microcontroller Architecture & Interfacing
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
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- Attempt all questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
| MARKS | |
| Q.1 (a) Explain all the bits of PSW register. | 03 |
| (b) What is the function of following pins in 8085: TRAP & HLDA | 04 |
| (c) Draw & explain the timing diagram of MVI A, 32H instruction for 8085. | 07 |
| Q.2 (a) Differentiate between MOVX & MOVC instructions | 03 |
| (b) How stacks are accessed in 8051? Explain PUSH & POP instructions. | 04 |
| (c) How demultiplexing of address/data lines (AD0 — AD7) can be achieved? Also explain the generation of all the control signals. | 07 |
| OR | |
| (c) Write a short note on interrupts available in 8051. | 07 |
| Q.3 (a) Explain assembly directives. | 03 |
| (b) Explain the instruction DJNZ & JBC in 8051 | 04 |
| (c) Write an assembly program to find 0’s & 1’s from a given number. | 07 |
| OR | |
| Q.3 (a) List all the data types available in C. | 03 |
| (b) Explain the programming model of 8085. | 04 |
| (c) Write an assembly program to add two 16 bit numbers. | 07 |
| Q.4 (a) What is the function of temporary registers W & Z in 8085. | 03 |
| (b) Compare Von Neumann & Harvard architecture. | 04 |
| (c) Write a C program to toggle all the bits of port 1 at a time delay of 50 ms. | 07 |
| OR | |
| Q.4 (a) Why C programming is preferred over assembly programming? | 03 |
| (b) Find control word to be loaded in timer registers TH0 & TL0 to generate time delay of 25 ms. Assume clock frequency as 11.0592MHz | 04 |
| (c) Write a C program to continuously transfer the message “YES” serially at 9600 baud, 8 bit data, and 1 stop bit. | 07 |
| Q.5 (a) What is RETT instruction? How it is different from RET instruction? | 03 |
| (b) List the alternate functions of all the pins of port 3. | 04 |
| (c) Draw & explain the interfacing of matrix keyboard with 8051. | 07 |
| OR | |
| Q.5 (a) Explain the advantage of IDE in program development. | 03 |
| (b) Write a short note on types of memory. | 04 |
| (c) Explain the role of SBUF & SCON registers in serial transfer in 8051. | 07 |
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This download link is referred from the post: GTU BE 2019 Summer Question Papers || Gujarat Technological University