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MICROPROCESSOR 8085 MP 4TH SEMESTER
EXAM/ECE/CSE/IT/EEE/6129/0624/Dec 2018
Microprocessor 8085 MP PSBTE Dec 2018 Paper SECTION-A
Q1. Fill Do as directed. 15×1=15
EPROM stands for Erasable Program Read Only Memory.
EEPROM stands for Electrically Erasable Program Read Only Memory.
PSW stands for Program Status Word Register.
PIT stands for Programmable Interval Timer.
The instruction DI is used for Disable Interrupt.
Out instruction requires 10 T-state.
8085 microprocessor has Five addressing
8085 microprocessor has 40 pin.
A nibble is Four Bits
RAM is a Random Access Memory .
ISR stands for Interrupt Subroutine
ALE stands for Address Latch Enable.
EI instruction is 1 byte
Trap is a Highest Priority interrupts
RAM stands for Random Access Memory
SECTION-B
Q2. Attempt any five questions. 5×6=30
Write a short note on stack Pointer ?
Describe briefly 8257 ?
Explain function of program Counter ?
Explain any one addressing mode in 8085 ?
What is interrupt service subroutine ?
Draw pin diagram of 8085 Microprocessor ?
Differentiate between memory mapped I/O and I/O mapped I/O.
SECTION-C
Q3. Attempt any three questions. 3×10=30
Draw and explain block diagram of 8085 ?
Explain various interrupts of 8085
Write a short note on
i) 8255
ii) DMA
3. Write a short note on the
1.Assembly language
2.Instructions set of 8085
Section a:- microprocessor 8085 mp dec 2015 diploma paper solution
Erasable Program Read Only Memory.
Decimal Adjust Accumulator
Direct Memory Access.
SIM instruction
Bit Set Reset Mode.