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MICROPROCESSOR 8085 MP 4TH SEMESTER
EXAM/ECE/CSE/IT/EEE/6129/0624/May 2017

    Microprocessor 8085 MP PSBTE May 2017 Paper                                                           SECTION-A

Q1. Do as directed.                                                                                                     15×1=15

  1. 8085 has 16 address lines.
  2. Stack Pointer (SP) points to the next instruction to be executed. (T/F) True
  3. Accumulator (A) in 8085 is 8  bit Register.
  4. SID pin stands for Serial Input Data in 8085.
  5. INTR is lowest priority Interrupt.
  6. ALE stands for Address Latch Enable. 
  7. 8257 is a DMA Controller.
  8.  SID and SOD instructions are used for input/ output data
  9. 8251 is a programmable peripheral interface (PPI). (T/F). False
  10. 8085 microprocessor contains  Five (5) Flags.

                      SECTION-B

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

  1. Explain PUSH and POP instructions.
  2. Explain the concept of DMA data transfer ?
  3. What do understand by interrupt priority ?
  4. What is a system bus? Explain various types of Buses
  5. Explain flag register of 8085 ?
  6. Differentiate between synchronous and asynchronous data transfer Scheme ?
  7. Explain the instruction format of of 8085 ?

                       SECTION-C

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

        Q3. Explain various processor control instructions of 8085..

        Q4. Draw the internal architecture of 8085 microprocessor and explain it.

        Q5. Explain the function of 8279 keyboard/ display interface chip.

        Q6. What is interrupt driven data transfer? Explain in detail.

        Q7. Write note on any two:

  1. Instruction Cycle
  2. Stack
  3. EEPROM

microprocessor 8085 mp
may 2018 DIPLOMA PAPER SOLUTION


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Section a FILL IN THE BLANK beE paper

The Data bus in 8085 is ______ bit

8 Bit

A Maximum memory that can be connected to 8085 microprocessor is  ____

64KB

Program Counter (PC) in 8085 is used to point to the address of instruction to be _____

Fetched

EPROM Stands for ____________

Erasable Program Read Only Memory. 

A 8085 has ___________ addressing  mode

Four 

DAA stands for _________________ 

Decimal Adjust Accumulator

____________ is the highest priority Interrupt.

TRAP

DMA means  ______________

Direct Memory Access.

________ instruction is used to output data from SOD Line.

SIM instruction 

BSR stands for ____________

Bit Set Reset Mode.

JK Engineering Classes  BE Paper May 2018 Solution Click Here

Section B : Microprocessor PAPER MAY 2018 solution here

Short Note on the special purpose registers of 8085 ?

Special purpose registers of 8085 Click Here.

Explain the function of assembler, compiler and Interpreter.
Describe instruction cycle, machine cycle and fetch Cycle
What is the basic difference between programmed data transfer and DMA scheme ?
Describe the flags of 8085 ?

Solution Click Here

Explain how address and data lines are de-multiplexed in 8085 ?

Solution Click Here

Differentiate between memory mapped I/O and I/O mapped I/O ?

Poor Power Factor

Six important Advantages of Electrical Energy ?

Advantages of Electrical Energy

JK Engineering Classes Provide the Video lecture  solution of these paper Click Here

microprocessor mp 8085 MAY 2018 diploma PAPER


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Section c microprocessor 8085 MAY 2018 paper SOLUTION HERE

Explain various addressing modes of 8085 ?
Explain various hardware interrupts of 8085 ?
What is DMA data transfer scheme? Explain in details ?

 Solution Click Here

Draw and explain block diagram of 8255 ?
Draw the Internal Architecture of 8085 and Explain Various Functional Blocks ?

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