List of top Electronics and Communication Engineering Questions on Microprocessors

When the following is used, the CPU is bypassed for certain data transfers?
In 8086 microprocessor, the instruction used to copy the word from the top of the stack to the flag register is
TRAP is addressed by

Match List-I with List-II.

Consider the following flags of 8085 affected by the instruction SUB B: A. Sign flag B. Carry flag C. Zero flag D. Parity flag
Which of the following is operating system?
A memory map to lowest address of 8k by 8 RAM is 1000H. What is highest address?
How are the bits of the register PSW affected if we select Bank-2 of 8051?
How many bytes of bit addressable memory is present in 8051 microcontroller?
On power up, the 8051 uses which RAM locations for register R0–R7?
Which instruction of the following makes the execution back to the invoking program?
The instructions that involve various string manipulation operations are
A microcontroller differs from a microprocessor in that it has
Which of the following methods is used for CPU to perform I/O operation?
The program counter in a computer is a special purpose register which contains
8051 series has how many 16-bit registers?
What is the state of carry, auxiliary carry and parity flags after execution of following instructions: MOV A, #3F
ADD A, #BE