Micro Controller CA-1

8051 series has how many 16 bit registers?

• 2

• 3

• 1

• 0

If we push data onto the stack then the stack pointer

• decreases with every push

• increases with every push

• increases & decreases with every push

• none of the mentioned

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

• 00-2F

• 00-07

• 00-0F

• 00-7F

The register that can be used as a scratch pad is

• Data register

• Accumulator and B register

• Accumulator

• B register

The registers that contain the status information is

• control registers

• instruction registers

• program status word

• Accumulator

A microcontroller normally has the following devices on-chip?

• RAM

• ROM

• I/O

• All of the above

A general-purpose microprocessor normally needs which of the following devices to be attached to it?

• RAM

• ROM

• I/O

• All of the above

The 8051 is a(n) ______ bit microprocessor.

• 8 bit

• 16 bit

• 8 byte

• 16 byte

True or False : Microcontrollers are normally less expensive than Microprocessors.

• True

• False

A microcontroller has a fixed amount of RAM on the chip.

• True

• False