MCA -SET 2

Stack Pointer is __________ Bit Wide Register.

• 4 bit

• 16 bit

• 32 bit

• 8 bit

P3.0 is Used For.

• Serial Input

• Serial Output

• External Intrupt 0

• External Intrupt 1

The _______pin of 8051 is used to provide power supply to the circuit.

• P39

• P40

• P29

• P34

Which Pin in 8051 Serves as Input / Output Pin.

• Pins 32 to 39

• Pins 21 to 28

• Pin 30

• Pins 18 & 19

The PSEN pin which stands for Program Store Enable is.

• PIN 29

• PIN 30

• PIN 31

• PIN 32

The RESET pin, which is used to reset the microcontroller to its initial values is.

• PIN 29

• PIN 9

• PIN 19

• PIN 7

8051 Has ________ Number Of Input/output Ports.

• 4

• 5

• 3

• 7

8051 Has ________ Number Of Input/output Pins.

• 32

• 34

• 33

• 37

A logic ______ represents a short circuit to ground.

• Logic 1

• Logic 2

• Logic 0

• Logic 3

A Logic One Denotes.

• High

• Low

• Medium

• Less