Que: 161. Which frequency is not recommended for SPI clock?
|
| a. fosc/4 |
| b. fosc/64 |
| c. fosc/16 |
| d. fosc/2 |
Que: 162. To select the value of the clock to be fosc/16, what are the appropriate values?
|
| a. SPI2X= 0, SPR1= 0, SPR0=1 |
| b. SPI2X= 0, SPR1= 1, SPR0=0 |
| c. SPI2X= 1, SPR1= 1, SPR0=0 |
| d. SPI2X= 0, SPR1= 1, SPR0=1 |
(a). SPI2X= 0, SPR1= 0, SPR0=1
Que: 163. Which of the following is correct?
|
| a. I2C is a technique by which data is transmitted with the help of only eight pins |
| b. SDA is used to synchronize data transfer between two chips |
| c. TWI is an another name for I2C |
| d. All of the mentioned |
(c). TWI is an another name for I2C
Que: 164. Which of the following is true about the I2C protocols?
|
| a. the data line cannot change when the clock line is high |
| b. the data line can change when the clock line is high |
| c. the clock line cannot change when the data line line is high |
| d. the clock line can change when the data line is high |
(a). the data line cannot change when the clock line is high
Que: 165. I2C is a connection oriented communication protocol.
|
| a. TRUE |
| b. FALSE |
| c. can’t be said |
| d. depends on the conditions |
Que: 166. The STOP condition is generated by a
|
| a. high to low change in the SDA line when the SCL is low |
| b. high to low change in the SDA line when the SCL is high |
| c. low to high change in the SDA line when the SCL is low |
| d. low to high change in the SDA line when the SCL is high |
(c). low to high change in the SDA line when the SCL is low
Que: 167. For receiving the acknowledgement
|
| a. SDA from transmitter should be high |
| b. SDA from transmitter should be low |
| c. SDA from receiver should be high |
| d. SDA from receiver should be low |
(d). SDA from receiver should be low
Que: 168. What steps are followed to complete the data transfer?
|
| a. START condition, STOP condition |
| b. Address packet |
| c. One or more data packet |
| d. All of the mentioned |
(d). All of the mentioned
Que: 169. I2C is ideal for short distances?
|
| a. TRUE |
| b. FALSE |
| c. can’t be said |
| d. depends on the conditions |
Que: 170. Which of the following is a register used for programming AVR’s I2C module?
|
| a. TWBR |
| b. TWCR |
| c. TWSR |
| d. All of the mentioned |
(d). All of the mentioned