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MICROPROCESSOR 8085 MP 4TH SEMESTER
EXAM/ECE/CSE/IT/EEE/6129/0624/Dec 2010

Microprocessor 8085 PSBTE Dec 2010 Paper SECTION-A

Q1. Do as directed. 15×1=15

I.1 KB is Equal to 1000 Bits (True/False) Solution False Because 1 KB = 1024 Bits

II. LSI stands for Large Scale Integration .

III. An Instruction has Two Parts Opcode and Operands (Data).

IV. Program Counter is a 16 Bit Register .

V. Addressing Capacity of 8085 Microprocessois 65536 byte or 64KB

VI. 8085 Microprocessor Chip has 40 Number of Pins.

VII. ALE Stands for Address Latch Enable.

VIII. The Data Bus and Lower Order Address Bus are Multiplexed.

VIV.IN and Out are the 1 Byte Instructions.

X.JMP Instruction is the Example of Immediate Addressing Mode.

SECTION-B

Q2. Attempt any five questions. 5×6=30

I. List Various applications of 8085 microprocessors?

II. Define Address Bus,Data Bus and Control Bus ?

III.Differentiate Between Memory Mapped Input output I/O and I/O Mapped I/O Scheme ?

IV. Briefly Describe Various Interrupts of 8085 ?

V. Load the Hexadecimal Numbers 9B H and A7 H in Registers D & E Respectively Add the numbers and Display the Output at an Output Port ?

VI. Explain PUSH and POP Instructions ?

VII. Discuss Various flags of 8085?

SECTION-C

Q3. Attempt any three questions. 3×10=30

1. Explain various addressing modes of 8085 ?

2. Explain various hardware interrupts of 8085 ?

3. What is DMA data transfer scheme? Explain in details ?

4. Draw and explain block diagram of 8255 ?

5. Draw the Internal Architecture of 8085 and Explain Various Functional Blocks ?

microprocessor 8085 mp
DEC 2010 DIPLOMA PAPER SOLUTION

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Section a:- microprocessor 8085 mp DEC 2010 diploma paper

1 KB is Equal to 1000 Bits (True/False)

Load the Hexadecimal Numbers 9B H and A7 H in Registers D & E Respectively Add the numbers and Display the Output at an Output Port

Explain PUSH and POP Instructions ?

PUSH and POP Instructions

Discuss Various flags of 8085?

Various flags of 8085

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micropro cessor mp 8085 dec 2010 diploma PAPER

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Section c microprocessor 8085 dec 2010 paper SOLUTION HERE

Explain various addressing modes of 8085 ?

Addressing modes of 8085

Explain various hardware interrupts of 8085 ?

Hardware interrupts of 8085

What is DMA data transfer scheme? Explain in details ?

DMA data transfer scheme

Draw and explain block diagram of 8255 ?

Explain block diagram of 8255

Draw the Internal Architecture of 8085 and Explain Various Functional Blocks ?

Internal Architecture of 8085

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