Microprocessor MP PSBTE Diploma Paper May 2019
Microprocessor PSBTE Diploma Paper May 2019
SECTION-A
Q1. Do as directed. 15×1=15
The ALE signal is used to differentiate between multiplexed address and data
INTR is lowest priority.
SIM stands for Set Interrupt Mask.
Size of stack pointer in 8085 is 16 Bit.
8257 is a DMA Controller.
DAA stands for Decimal Adjust Accumulator.
8085 operates on a single +5V DC Supply
A nibble is Four Bits.
EPROM stands for Erasable Programmable Read-Only Memory.
LXI H, 2500H is a 3 byte instruction.
Data bus is bidirectional bus in
PSW stands for Program Status Word Registor.
What is the addressing mode used in the instruction LXI B 0345H? Solution -Memory Addressing Mode.
A program written in mnemonics is called Assembly Language Program.
In 8085 PSW consists of
Flag ii) accumulator iii) Both iv) None of these Ans Both
SECTION-B
Q2. Attempt any five questions. 5×6=30
Explain the function of Program Counter ?
What is the need of interrupt? Discuss different types of Interrupt ?
Differentiate between I/O mapped I/O and memory mapped I/O.
Explain the function of PUSH and POP Instruction ?
Briefly discuss the working of 8255?
Explain various steps involved in program
What is the need of demultiplexing of buses?
SECTION-C
Q3. Attempt any three questions. 3×10=30
Draw the pin diagram of 8085 & explain meaning of various
What are the various data transfer schemes? Explain handshaking scheme in
Discuss various addressing modes of
Write a short note on the a) Instruction set of 8085 b) Assembly language
Discuss the evolution, importance and applications of 8085 Microprocessor.
Section a FILL IN THE BLANKS microprocessor 8085 may 2019 paper
The ALE signal is used to differentiate between multiplexed address and data .
INTR is lowest priority Interrupt.
SIM stands for Set Interrupt Mask.
Size of stack pointer in 8085 is 16 Bit.
8257 is a DMA Controller.
DAA stands for Decimal Adjust Accumulator.
8085 operates on a single +5V DC Supply
A nibble is Four Bits.
EPROM stands for Erasable Programmable Read-Only Memory.
LXI H, 2500H is a 3 byte instruction.
Data bus is bidirectional bus
PSW stands for Program Status Word Registor.
Solution -Memory Addressing Mode.
A program written in mnemonics is called Assembly Language Program.
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Section B : Microprocessor 8085 PAPER MAY 2019 PAPER
Function of Program Counter
Need of interrupt
different types of Interrupt
Between I/O mapped I/O and memory mapped I/O.
Function of PUSH and POP Instruction
Discuss the working of 8255
Various steps involved in program
Need of demultiplexing of buses
Microprocessor MP PSBTE Diploma Solved Paper May 2019 Solution Click Here
Section c : Microprocessor 8085 PAPER MAY 2019 PAPER
Draw the pin diagram of 8085
Various data transfer schemes
Explain handshaking scheme in details.
Various addressing modes of Microprocessor
Evolution, importance and applications of 8085 Microprocessor