MPMC

Which of the following registers in the 8051 microcontroller is used to control the serial communication?

• TCON

• SBUFF

• SMOD

• SCON

What is the size of the program counter in the 8051 microcontroller?

• 8 bits

• It changes with the type of Program we write.

• 16 bits

• 32 bits

What is the role of the TMOD register in the 8051 microcontroller?

• It selects the clock source for timers.

• • It configures the mode and operation of Timer 0 and Timer 1.

  
  

• • It sets the clock frequency for the microcontroller.

  
  

• It controls the interrupt enable flags for the timers.

How is the baud rate generated for serial communication in the 8051 microcontroller?

• Using Timer 0 in Mode 1

• Using Timer 1 in Mode 2

• Using the SBUF register

• Using the TCON register

What is the maximum number of external interrupts supported by the standard 8051 microcontroller?

• 1

• 2

• 3

• 4

Which of the following statements best describes the function of the program counter (PC) in the 8051?

• It holds the address of the next instruction to be executed.

• It stores the address of the current instruction being executed.

• It increments every time a data memory access occurs.

• It is used to store intermediate data results.

Which Flag helps in determining that an Interrupt (INT1) is Edge triggered?

• IE1

• IT1

• EA

• ET1

Which Value you will move to IP register to make Timer 1 (TF1) as the highest priority Interrupt

• TCON=#FFH

• IP=#0001000B

• IP=#FFH

• IP=#00001000B

When RS=_____, The LCD works in Command Mode.

What is the step size of a 16 bit ADC?

• 19.53 mv

• 4.88mV

• 1.2 mV

• 0.076 mV