LO3 Part 1

In AVR, which register is not used for the I/O programming of ports?

A. PORT

B. PIN

C. DDR

D. TCON

In AVR, which of the following registers is used for the I/O programming of ports?

A. PORT

D. All of the mentioned

B. PIN

C. DDR

In AVR, which of the following registers are not used for programming timers?

a. TCNT

D. None of the mentioned

B. TCON

C. TIFR

. Which of the following statements is correct?

a. PIN register of a port is used to bring data into CPU from pins

b. PORT register is used to send data out to pins

C. DDR register is used to control the direction of a port

D. All of the mentioned

The data will not go from the port registers to the pin unless_______. d. PORT register of that port is set to 0

A. DDR register of that port is set to 0

C. DDR register of that port is set to 1

B. PORT register of that port is set to 1 *

D. PORT register of that port is set to 0

Which of the following will generate the maximum time delay?

A. f/64

B. f/32

C. f/16

D. f/4

Which of the following will generate the maximum time delay?

A. f/1024

B. f/256

C. f/64

D. f/16

What is the use of the Prescaler in the operation of the timer?

A. For fast calculations

B. For increasing the time delay by decreasing its frequency of operation

C. For the reloading of count

d. For easy counter operations

Which of the following timers can operate in the 16-bit condition?

A. Timer0

B. Timer1

D. All of the mentioned

C. Timer2

The largest value that can be loaded in an 8-bit register is?

A. FH

B. 11111111H

C. 00H

D. FFH

On reset, DDR registers of all ports are set to_____.

*a. 0

B. 1

D. 0 & 1

c. None of the mentioned

LO3 Part 1

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