Download GTU BE/B.Tech 2018 Winter 4th Sem New 2141001 Microprocessor And Interfacing Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2018 Winter 4th Sem New 2141001 Microprocessor And Interfacing Previous Question Paper

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1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ?IV (NEW) EXAMINATION ? WINTER 2018
Subject Code:2141001 Date:28/11/2018

Subject Name:Microprocessor and Interfacing

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) Classify 8085 microprocessor instruction set. 03
(b) Draw and explain a circuit to generate control signals. 04
(c) Draw and explain block diagram of 8085microprocessor. 07

Q.2 (a) Draw and explain the bus structure of 8085 microprocessor. 03
(b) Compare Memory mapped I/O and I/O mapped I/O. 04
(c) Explain the following instructions of 8085 microprocessor. 1) RRC 2) STC
3) ACI 4) DAD 5) PUSH 6) INX 7) HLT
07
OR
(c) Explain the following instructions of 8085 microprocessor. 1) RAR 2)
CMP 3) LHI 4) DAA 5) POP 6) DCR 7) XCHG
07
Q.3 (a) Differentiate: Linear Decoding and Absolute Decoding 03
(b) Design a delay loop to generate delay of 200msec. Assume clock frequency
of 8085 microprocessor is 2MHz.
04
(c) List out basic machine cycles of 8085 microprocessor. Draw and explain
any two in detail.
07
OR
Q.3 (a) Explain de-multiplexing of AD0-AD7 lower order address and data bus. 03
(b) Write a program to perform multiplication of two 8-bit numbers. 04
(c) Draw and explain timing diagram of STA instruction. 07
Q.4 (a) Explain SIM and RIM instructions. 03
(b) Design an interfacing circuit to interface one 2KB EPROM and two 4KB
RAM.
04
(c) Write a program to arrange given numbers in descending order. 07
OR
Q.4 (a) Explain the concept of stack memory with an example. 03
(b) Broadly classify the interrupts in 8085 microprocessor. 04
(c) Write a program to find negative numbers from the given array of numbers. 07
Q.5 (a) Draw block diagram of 8253 timer IC. 03
(b) Draw architecture 8086 microprocessor. 04
(c) Draw and explain 8259 Programmable Interrupt Controller. 07
OR

Q.5 (a) Give an overview of Advance microprocessors. 03
(b) Explain Addressing modes of 8086 microprocessor. 04
(c) Draw and explain block diagram and control word of 8255 PPI. 07
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