8051 Microcontroller

DPTR stands for Data Poniter.

• Yes

• No

• May be

Program Counter in 8051 is

• 8 bit wide

• 16 bit wide

• 20 bit wide

Interal RAM & ROM are features in

• 8086 Processor

• 8255 PPI

• 8051 Controller

Number of register banks in 8051

• 8

• 7

• 4

• 10

Full form of PSW?

• Program Settle word

• Program Screen word

• Program Status Word

ROM memory size placed on chip?

• 64Kbytes

• 4Kbytes

• 256 Bytes

• 128 bytes

How many timers are present in 8051

• 2

• 4

• 1

How many SFR registers are present in memory

• 10

• 12

• 11

• 21

It is used to store data and program.

• CPU

• RAM

• Memory

• ROM

The part of the microcontroller that fetches, decodes and executes commands is called the ...

• ROM

• RAM

• CPU

• Timer