Que: 151. For a normal 4 step sequence, what are number of teeth required to accomplish a 2 degree step angle?
|
| a. 180 |
| b. 90 |
| c. 360 |
| d. 45 |
Que: 152. Ounch-inch is a unit of a torque.
|
| a. TRUE |
| b. FALSE |
| c. can’t say |
| d. depends on the situation |
Que: 153. Why do we make the connection of the SCLK for communicating serially between two devices?
|
| a. to get a clock output from the device |
| b. to synchronize the two devices |
| c. to obtain an analog output |
| d. all of the mentioned |
(b). to synchronize the two devices
Que: 154. What is the function of the CE pin in SPI?
|
| a. it is used for synchronization |
| b. it is used as a transmitting pin |
| c. it is used as a receiving pin |
| d. it is used to initiate and terminate the data transfer |
(d). it is used to initiate and terminate the data transfer
Que: 155. Which of the following is correct?
|
| a. MOSI has the same meaning as the SDO |
| b. SCLK is used to initiate and terminate the data transfer |
| c. In 3 wire SPI, their is only one pin for transmission and reception |
| d. In 3 wire SPI, their are three pins MOSI, MISO and SCLK |
(c). In 3 wire SPI, their is only one pin for transmission and reception
Que: 156. If CPHA= 0 and CPOL=1, then which of the following is true?
|
| a. read on rising edge, changed on a falling edge |
| b. read on falling edge, changed on a rising edge |
| c. write on rising edge, changed on a falling edge |
| d. write on rising edge, changed on a falling edge |
(b). read on falling edge, changed on a rising edge
Que: 157. In SPI write, LSB goes first?
|
| a. TRUE |
| b. FALSE |
| c. can’t be said |
| d. depends on the cases |
Que: 158. In AVR, which of the following registers are used for SPI?
|
| a. SPSR |
| b. SPCR |
| c. SPDR |
| d. All of the mentioned |
(d). All of the mentioned
Que: 159. How do we set the SPI, to operate in the master mode 1?
|
| a. We set the MSTR bit, and make the CPOL= 1 and CPHA=0 |
| b. We set the MSTR bit, and make the CPOL= 0 and CPHA=1 |
| c. We reset the MSTR bit, and make the CPOL= 1 and CPHA=0 |
| d. We reset the MSTR bit, and make the CPOL= 0 and CPHA=1 |
(b). We set the MSTR bit, and make the CPOL= 0 and CPHA=1
Que: 160. SPI can act as a half duplex transmission?
|
| a. TRUE |
| b. FALSE |
| c. depends on the conditions |
| d. can’t be said |