Important question

EC6504 Important Questions Microprocessor and Microcontroller Regulation 2013 Anna University

EC6504 Important Questions Microprocessor and Microcontroller

EC6504 Important Questions Microprocessor and Microcontroller Regulation 2013 Anna University free download. Microprocessor and Microcontroller Important Questions pdf free download.

Sample EC6504 Important Questions:

1. What is microprocessor?

A microprocessor is a multipurpose, programmable, clock-driven , register-based electronic device that reads binary information from a storage device called memory, accepts binary data as input and processes data according to those instructions, and provides result as output.

2. What is Accumulator?

The Accumulator is an 8-bit register that is part of the arithmetic/logic unit (ALU). This register is used to store 8-bit data and to perform arithmetic and logical operations. The result of an operation is stored in the accumulator. The accumulator is also identified as
register A.

3. What is stack?

The stack is a group of memory locations in the R/W memory that is used for temporary storage of binary information during the execution of a program

4. What is a subroutine program?

A subroutine is a group of instructions written separately from the main program to perform a function that occurs repeatedly in the main program. Thus subroutines avoid the repetition of same set of instructions in the main program.

5. Define addressing mode.

Addressing mode is used to specify the way in which the address of the operand is specified within the instruction.

6. Define instruction cycle.

It is defined as the time required to complete the execution of an instruction.

 

Subject Name Microprocessor and Microcontroller
Subject code EC6504
Regulation 2013

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