Microprocessor and Microcontrollers

Microprocessor is a controlling unit of a micro-computer, fabricated on a small chip capable of performing ALU (Arithmetic Logical Unit) operations and communicating with the other devices connected to it.A microcontroller is a small and low-cost microcomputer, which is designed to perform the specific tasks of embedded systems like displaying microwave’s information, receiving remote signals, etc.

If the data is present in a register and it is referred using the particular register, then it is
Operation code field is present in :
The instruction, MOV AX, 0005H belongs to the address mode
The contents of a base register are added to the contents of index register in
The instruction that enables subtraction with borrow is
The flag that acts as Borrow flag in the instruction, SBB is
During comparison operation, the result of comparing or subtraction is stored in
The expansion of DAA is
The instruction that is used to convert the result of the addition of two packed BCD numbers to a valid BCD number is
The assembler directives which are the hints using some predefined alphabetical strings are given to
The directive that marks the end of an assembly language program is
The recurrence of the numerical values or constants in a program code is reduced by
The labels or constants that can be used by any module in the program is possible when they are declared as
The Stack follows the sequence
The stack is useful for
The process of storing the data in the stack is called ……… the stack.
While retrieving data from the stack, the stack pointer is
The stack pointer register contains
The number of PUSH instructions and POP instructions in a subroutine must be
8086 does not support
FPGA means
8085 microprocessor has how many pins
In 8085 microprocessor, the RST6 instruction transfer programme execution to following location
The ROM programmed during manufacturing process itself is called
HLT opcode means
In 8085 name/names of the 16 bit registers is/are
What is SIM?
A field programmable ROM is called
A combinational PLD with a programmable AND array and a programmable OR array is called a
Which one of the following circuits transmits two messages simultaneously in one direction
The program counter in a 8085 micro-processor is a 16-bit register, because
A microprocessor is ALU
Output of the assembler in machine codes is referred to as
Which of the following statements for intel 8085 is correct?
Which one of the following is not correct?
The processor status word of 8085 microprocessor has five flags namely:
What are the sets of commands in a program which are not translated into machine instructions during assembly process, called?
The cycle required to fetch and execute an instruction in a 8085 microprocessor is which one of the following?
Both the ALU and control section of CPU employ which special purpose storage location?
ALU (Arithmetic and Logic Unit ) of 8085 microprocessor consists of
Following is a 16-bit register for 8085 microprocessor
In 8085 microprocessor system with memory mapped I/O, which of the following is true?
Ready pin of microprocessor is used
A bus connected between the CPU and main memory that permits transfer of information between main memory and the CPU is known as
The operations executed by two or more control units are referred as
The field, which is never present in an assembly language statement, is
Bus Interface Unit (BIU) in 8086 performs the following functions:
In 8086, _______ uses a mechanism known as an instruction stream queue to implement a pipeline architecture.
The control flags in 8086 are:
DMA signal/signals in 8085 is/are
How many segments are there in 8086?
Total number of instructions in 8085 microprocessor assembly language is
An 8-bit microprocessor signifies that
Which one of the following microprocessor is not an 8-bit microprocessor
Which one of the following microprocessor has 16-bit data bus?
The address bus of any microprocessor is always
The data bus of any microprocessor is always
What is used to access 16-bit data in 8086?
The address bus width of a microprocessor which is capable of addressing 64 Kbytes of the memory is
An 8-bit microprocessor can have ………….. address lines.

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