Download Previous Year Microprocessor 8085 MP PSBTE Dec 2015 Paper at PSBTEPAPER.COM
MICROPROCESSOR 8085 MP 4TH SEMESTER
EXAM/ECE/CSE/IT/EEE/6129/0624/Dec 2011
Microprocessor 8085 PSBTE Dec 2011 Paper SECTION-A
Q1. Do as directed. 15×1=15
RAM stands for .
The most important register in the arithmetic unit is the
When any interrupt is recognized , the 8085 automatically the interrupt
The SIM instruction allow us to the interrupt
The mnemonics used in writing a program is called
is used to hold the memory address of the next instruction to be
Each instruction contains two parts : operation code (opcode) and .
What is the addressing mode used in instruction LDA 0345 H ?
PPI stands for
The 8253 contains three independent 16-bit .
The normal operation of a microprocessor can also be interrupted by abnormal conditions or special instructions . Such an interrupt is called
Which of the following interrupt is unmaskable interrupt ?
SECTION-B
Q2. Attempt any five questions. 5×6=30
- Explain what is the function of ALU ?
- Explain the basic concept of memory mapping ?
- Explain the maskable and non maskable interrupt ?
- Explain the instruction cycle and machine Cycle ?
- Explain what is 8251 ?
- Explain the function of parity flag and carry flag in 8085 ?
- Explain the register indirect addressing mode with suitable example ?
- What is the difference between RLC and RAR Instruction ?
- What are handshake signals?
SECTION-C
Q3. Attempt any three questions. 3×10=30
- Explain the programmable interval timer
- Explain the functions of the following signals of 8085
- INTA INTR
iii. HOLD iv. HLDA
- READY
- What is DMA data transfer scheme ? Discuss the function of DMA data controller 8257.
- Explain what operation is performed when the following instructions are executed :
- DAD rp b. DAA
- CMA d. CMPM
- CMP r
- Write short notes on following
- Memory Mapped I/o scheme
- Evolution of Microprocessor
Section a:- microprocessor 8085 mp dec 2011 diploma paper solution
Erasable Program Read Only Memory.
Decimal Adjust Accumulator
Direct Memory Access.
SIM instruction
Bit Set Reset Mode.
Section B : Microprocessor PAPER dec 2011 solution here
Section c microprocessor 8085 dec 2011 paper SOLUTION HERE
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Download Previous Year Microprocessor 8085 MP PSBTE May 2018 Paper at PSBTEPAPER.COM
MICROPROCESSOR 8085 MP 4TH SEMESTER
EXAM/ECE/CSE/IT/EEE/6129/0624/May 2018
Microprocessor 8085 MP PSBTE May 2018 Paper SECTION-A
Q1. Do as directed. 15×1=15
- Data bus in 8085 is 8 bit
- 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.
- 8085 has Four addressing mode.
- DAA stands for Decimal Adjust Accumulator.
- TRAP is the highest priority Interrupt.
- DMA means Direct Memory Access.
- SIM instruction is used to output data from SOD Line.
- BSR stands for Bit Set Reset Mode.
SECTION-B
Q2. Attempt any five questions. 5×6=30
- Describe the special purpose registers of 8085 ?
- 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 ?
- Explain how address and data lines are de-multiplexed in 8085 ?
- Differentiate between memory mapped I/O and I/O mapped I/O ?
SECTION-C
Q3. Attempt any three questions. 3×10=30
- Explain various addressing modes of 8085 ?
- Explain various hardware interrupts of 8085 ?
- What is DMA data transfer scheme? Explain in details ?
- Draw and explain block diagram of 8255 ?
- Draw the Internal Architecture of 8085 and Explain Various Functional Blocks ?
Section a FILL IN THE BLANK beE paper
Erasable Program Read Only Memory.
Decimal Adjust Accumulator
Direct Memory Access.
SIM instruction
Bit Set Reset Mode.
Section B : Microprocessor PAPER MAY 2018 solution here
Section c microprocessor 8085 MAY 2018 paper SOLUTION HERE
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