EE8551 MM 2marks
Anna University Regulation 2017 EEE EE8551 MM 2marks & 16marks for all 5 units are provided below. EE8551 MM Short answers, Question Bank for MICROPROCESSORS AND MICROCONTROLLERS Engineering are listed down for students to make perfect utilization and score maximum marks with our study materials.
EE8551 MM MICROPROCESSORS AND MICROCONTROLLERS
1. What is microprocessor? Give the power supply &clock frequency of 8085
A microprocessor is a multipurpose, programmable logic device that reads binary instructions from a storage device called memory accepts binary data. As input and processes data according to those instructions and provides result as output. The power of 8085 is +5v and clock freqency in 3MHZ.
2. List few applications of microprocessor-based system.
It is used:
i)For measurements, display and control of current, voltage, Temperature, pressure, etc.
ii)For traffic control and industrial tool control.
iii)For speed control of machines.
3. What are the funtions of an accumalator?
The accumalator is the register associated with the ALU operations and sometimes I/O operations. It is an integral part of ALU. It holds one of data to be processed by ALU. It also temporarily stores the result of the operation performed by the ALU.
4. List the 16 – bit registers of 8085 microprossor.
Stack pointer (sp) and program counter(pc).
5. List the allowed register pairs of 8085.
B-C register pair D-C register pair H-L register pair
6. Mention the purpose of SID and SOD lines
SID(serial input data line):
It is an input line through which the microprocessor accepts serial data.
SOD(serial output data line):
It is an output line through which the microprocessor sends output serial data.
7. What is an opcode?
The part of the instruction that specifies the operation to be performed is called the operation code or opcode.
8.What is the funtion of IO/M signal in the 8085?
It is a status signal. It is used to differentiate between memory locations and I/O operations when this signal is low (IO/M=0) it denotes the memory related operations.when this signal is high(IO/M=1)it denotes an I/O operation
9. What is an operand?
The data on which the operation is to be performed is called as an operand.
10. How many address lines in a 4096*8 EPROM CHIP?
12 Address lines.
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