Interfacing 8051 Microcontroller Quiz

What is the purpose of an 8051 microcontroller?

• To play music

• To cook food

• To control and manage electronic devices and systems

• To control traffic lights

How many pins does an 8051 microcontroller have?

• 64

• 40

• 32

• 16

Which of the following is NOT a part of the 8051 microcontroller architecture?

• RAM

• GPU

• ROM

• ALU

What is the purpose of I/O ports in the 8051 microcontroller?

• To provide communication with external devices or peripherals.

• To generate clock signals for the microcontroller.

• To store data and instructions.

• To control the internal operations of the microcontroller.

Which of the following is NOT a serial communication protocol supported by the 8051 microcontroller?

• I2C

• CAN

• SPI

• UART

What is the purpose of interrupts in the 8051 microcontroller?

• Interrupts in the 8051 microcontroller are used to execute the program sequentially.

• Interrupts in the 8051 microcontroller are used to slow down the execution of the program.

• Interrupts in the 8051 microcontroller are used to increase the power consumption.

• The purpose of interrupts in the 8051 microcontroller is to handle external events or signals that require immediate attention.

Which of the following is NOT a timer available in the 8051 microcontroller?

• Timer 0

• Timer 2

• Timer 4

• Timer 1

What is the maximum number of I/O ports available in the 8051 microcontroller?

• 128

• 256

• 64

• 512

Which of the following is the correct pin diagram of the 8051 microcontroller?

• Pin 1 - VCC, Pin 2 - P0.0, Pin 3 - P0.1, Pin 4 - P0.2, Pin 5 - P0.3, Pin 6 - P0.4, Pin 7 - P0.5, Pin 8 - P0.6, Pin 9 - P0.7, Pin 10 - RST, Pin 11 - P1.0, Pin 12 - P1.1, Pin 13 - P1.2, Pin 14 - P1.3, Pin 15 - P1.4, Pin 16 - P1.5, Pin 17 - P1.6, Pin 18 - P1.7, Pin 19 - XTAL1, Pin 20 - XTAL2, Pin 21 - GND.

• Pin 1 - GND, Pin 2 - P0.0, Pin 3 - P0.1, Pin 4 - P0.2, Pin 5 - P0.3, Pin 6 - P0.4, Pin 7 - P0.5, Pin 8 - P0.6, Pin 9 - P0.7, Pin 10 - RST, Pin 11 - P1.0, Pin 12 - P1.1, Pin 13 - P1.2, Pin 14 - P1.3, Pin 15 - P1.4, Pin 16 - P1.5, Pin 17 - P1.6, Pin 18 - P1.7, Pin 19 - XTAL1, Pin 20 - XTAL2, Pin 21 - VCC.

• The correct pin diagram of the 8051 microcontroller is as follows: Pin 1 - VCC, Pin 2 - P0.0, Pin 3 - P0.1, Pin 4 - P0.2, Pin 5 - P0.3, Pin 6 - P0.4, Pin 7 - P0.5, Pin 8 - P0.6, Pin 9 - P0.7, Pin 10 - RST, Pin 11 - P1.0, Pin 12 - P1.1, Pin 13 - P1.2, Pin 14 - P1.3, Pin 15 - P1.4, Pin 16 - P1.5, Pin 17 - P1.6, Pin 18 - P1.7, Pin 19 - XTAL1, Pin 20 - XTAL2, Pin 21 - GND.

• Pin 1 - VCC, Pin 2 - P0.0, Pin 3 - P0.1, Pin 4 - P0.2, Pin 5 - P0.3, Pin 6 - P0.4, Pin 7 - P0.5, Pin 8 - P0.6, Pin 9 - P0.7, Pin 10 - RST, Pin 11 - P1.0, Pin 12 - P1.1, Pin 13 - P1.2, Pin 14 - P1.3, Pin 15 - P1.4, Pin 16 - P1.5, Pin 17 - P1.6, Pin 18 - P1.7, Pin 19 - XTAL1, Pin 20 - XTAL2, Pin 21 - VDD.

What is the purpose of the ALE (Address Latch Enable) pin in the 8051 microcontroller?

• To latch the address onto the external latch during external memory access.

• To enable the interrupt functionality of the microcontroller.

• To enable the serial communication interface of the microcontroller.

• To control the clock frequency of the microcontroller.