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Microcontrollers Questions Set 8:

Quiz Mode

What is the physical address of IP in the 8051 microcontroller?

B8H

A8H

97H

88H

Solution:

Which of the following is not a PSW (Program Status Word) flag register?

Solution:

What will the accumulator finally have ? MOV @R2, #04H MOV A, @R2 RRCA A

82H

02H

00H

08H

Solution:

To mask certain bits, what operation should be used?

AND them with zero

OR them with zero

AND them with one

OR them with one

Solution:

What are the memory locations from 20H to 2FH in the RAM of an 8051 microcontroller called?

Bit-addressable memory

Stack

SFRs

Solution:

The higher and lower bytes of a 16-bit register DPTR are represented respectively as?

LDPTR and HDPTR

DPTRL and DPTRH

DPH and DPL

HDP and LDP

Solution:

In which of the timers modes of the 8051 microcontroller , the timer needs not to be reset once the count rolls over condition is reached ?

mode 0

mode 1

mode 2

mode 3

Solution:

Identify the addressing mode used in the given assembly language instruction:

`mov a, 06h`

Direct Addressing Mode

Immediate Addressing Mode

Indexed addressing mode

Solution:

What is the first task a microprocessor performs, after detecting an interrupt ?

It saves the PC address in stack

It saves the PSW status flags in stacks

It jumps to ISR

it completes the ongoing instruction

Solution:

Which of the following statements about SRAM and DRAM are true?

SRAM has lower capacity, DRAM is faster, DRAM uses capacitors, and both are volatile

SRAM has lower capacity, DRAM uses capacitors, and both are volatile

SRAM has lower capacity, DRAM is faster, and DRAM uses capacitors

SRAM has lower capacity, DRAM is faster, and both are volatile

Microcontrollers Questions Set 8:

What is the physical address of IP in the 8051 microcontroller?

Solution:

Which of the following is not a PSW (Program Status Word) flag register?

Solution:

What will the accumulator finally have ? MOV @R2, #04H MOV A, @R2 RRCA A

Solution:

To mask certain bits, what operation should be used?

Solution:

What are the memory locations from 20H to 2FH in the RAM of an 8051 microcontroller called?

Solution:

The higher and lower bytes of a 16-bit register DPTR are represented respectively as?

Solution:

In which of the timers modes of the 8051 microcontroller , the timer needs not to be reset once the count rolls over condition is reached ?

Solution:

Identify the addressing mode used in the given assembly language instruction:

`mov a, 06h`

Solution:

What is the first task a microprocessor performs, after detecting an interrupt ?

Solution:

Which of the following statements about SRAM and DRAM are true?

Solution:

Related Question Sets:

Related Topics:

Microcontrollers Questions Set 8:

What is the physical address of IP in the 8051 microcontroller?

Solution:

Which of the following is not a PSW (Program Status Word) flag register?

Solution:

What will the accumulator finally have ? MOV @R2, #04H MOV A, @R2 RRCA A

Solution:

To mask certain bits, what operation should be used?

Solution:

What are the memory locations from 20H to 2FH in the RAM of an 8051 microcontroller called?

Solution:

The higher and lower bytes of a 16-bit register DPTR are represented respectively as?

Solution:

In which of the timers modes of the 8051 microcontroller , the timer needs not to be reset once the count rolls over condition is reached ?

Solution:

Identify the addressing mode used in the given assembly language instruction: mov a, 06h

Solution:

What is the first task a microprocessor performs, after detecting an interrupt ?

Solution:

Which of the following statements about SRAM and DRAM are true?

Solution:

Related Question Sets:

Related Topics:

Identify the addressing mode used in the given assembly language instruction:

`mov a, 06h`