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MICRO CONTROLLER

Authored by Suresh Kumar

Computers

5th Grade

Used 38+ times

MICRO CONTROLLER
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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

8051 MICRO CONTROLLER MADE BY THE FOLLOWING COMPANY/

ATMEL

PHILIPS

SONY

ATMEL & PHILIPS

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

8051 series has how many 16 bit registers?

4

2

1

3

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When 8051 wakes up then 0x00 is loaded to which register

DPTR

SP

PC

PSW

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

AT89C2051 has RAM of:

128BYTES

64BYTES

256BYTES

1024BYTES

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When the microcontroller executes some arithmetic operations, then the flag bits of which register are affected?

PSW

PC

SP

DPTR

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If we push data onto the stack then the stack pointer

increases with every push

decreases with every push

increases & decreases with every push

none of the mentioned

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

. On power up, the 8051 uses which RAM locations for register R0- R7

00-2F

00-07

00-7F

00-0F

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