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SPI Protocol Question & Answers

May 23, 2022 By WatElectronics

This article lists 100 SPI Protocol MCQs for engineering students. All the SPI Protocol Questions & Answers given below include a hint and a link wherever possible to the relevant topic. This is helpful for users who are preparing for their exams, interviews, or professionals who would like to brush up their fundamentals on SPI Protocol.

The field of communication plays a vital role in transferring  data in a secure way. This can be achieved in one of the way in embedded system field by connecting secure communicating bus between the peripherals.

These buses communicate data between the peripherals either in serial communication or in parallel communication. A few of the serial bus communication  includes SPI, CAN, UART, etc. The main features of these buses is the data loss is less, enhance speed, easy system design.

SPI is an acronym for Serial  Peripheral Interface Bus, designed by Motorola is interfaced with multiple controllers such as ARM, AVR, etc. A SPI has synchronous type serial communication type data link.

The type of communication performed by SPI is full duplex. It comprises of 2 main components master and slave components. Where it may have single master and multiple slaves ie, one or more number of slaves, MISO, CLK, MOSI and SS are the important signals in SPI.

They benefit in terms of high speed data bus, transfers more than 8 bits,  and  slaves deploys master clock.

1). SPI stands for _____?

Hint
2). A SPI pose ____ type of serial communication interface?

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3). A SPI is used for ____ length distance communication?

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4).Who developed SPI interface?

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5). Which of the following is the typical application of SPI?

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Read more about LCD.
6). LCD stands for ____?

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7). An SPI is ____ communication type BUS?

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8). Which of the following are the components of SPI in full duplex mode?

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9). How many master components does an SPI bus architecture has?

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10). A SPI has ____ number of slave components?

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11). A master component in SPI architecture is also called ___?

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12). ____ is the terms used for picking up a particular slave in a SPI master and slave architecture?

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13).SPI is alternatively called _____?

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14). SPI bus is different from ____ protocol?

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15). Which of the following are the properties of SSI protocol?

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16). Which of the following is the quantity of a SSI protocols simplex communication?

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17). How many logic signals does an SPI bus has?

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18). SCLK in SPI bus architecture stands for ____?

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19). SCLK is the data _____ in SPI bus architecture?

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20). From which of the following component SCLK receives input?

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21). MOSI in SPI architecture stands for?

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22). MOSI has data ____ from master?

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23). MISO stands for?

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24). CS in SPI architecture stands for _____?

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25). Which of the following are the control signals of MOSI?

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SPI Protocol Quiz Questions and Answers.

26). Which of the following are the control signals of MISO?

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27).Which of the following are slave select pins in SPI?

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28). Which of the following are chip select pins in SPI?

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29). Which of the following is the chip select enable pin in SPI?

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30). When one device is used in SPI architecture which pin is set low?

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31). SPI protocol is used in ___ field of engineering?

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32). Which of the following is the limitation in absence of protocol bus?

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33). Which of the following is the type of communication used in embedded system?

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34). Which of the following are serial communication type protocols?

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35). Which of the following are the characteristic of serial communication protocol?

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36). ____ is also represents serial data?

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37). In which form electrically coded data is transferred in SPI?

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38). Which of the following are the communication components of embedded systems?

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39). In which of the following form digital data is converted before transmitting to microcontroller?

Hint
Read more about Microcontroller 
40). The serial type data in an embedded system is transmitted to its peripheral devices depending on ____?

Hint
Read more about Embedded System
41). The rate of transmission is also called ____?

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42). What is the total size of transmitted data in bits/sec, when 12 bytes of data is transmitted?

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43). SPI is a bit ______ than other protocols like USB, Ethernet.

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44). SPI bridges between MC’s and sensors where high amounts of high____ parameter data will not be transferred.

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45). Bits communicated between devices is due to changes in ______ parameter?

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46)._____ bit is communicated as a short type pulse of 0 volts.

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47). _____ bit is communicated as a short type pulse of 5 volts.

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48).________ Module uses SPI to communicate data with MC’s.

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49). The number of slaves is limited by loads _______ property of the system.

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50). Speed of ______ which parameter is identified by frequency of clock signal.

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SPI Protocol Interview Questions and Answers

51). SPI Communication always depends on ________, as it generates clock signals.

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52). The clock signal in SPI is updated via properties of ______?

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53). Clock polarity in SPI are sampled on either rising or _____ type edge of the clock cycle.

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54).Clock phase in SPI are sampled on either the first or _____ number edge of the clock cycle.

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55)._____ can be set by the master to access for bits to be the output.

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56). In ____________ state, the select line of slave is kept at high voltage level.

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57). ____ pins in multiple are available on the master side of SPI.

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58). Multiple slaves are connected to many master or single master which can be wired in ______ fashion?

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59). If one CS/SS pin exists then multiple slaves are connected to master by ________ process?

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60). Data transferred from master to slave is sent via _____ first.

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61). Data transferred from slave to master is sent with _____ first.

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62). Slave is in operating state when master switches CS/SS pin to ____ voltage state.

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63).When master sends data over MOSI line then which component _____ reads the bits as they received.

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64). In SPI which bits are absent?

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65). SPI has a higher data transfer rate than _____?

Hint
Read more about I2C.
66). Data transfer and receive done at same time via ____ lines.

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67).Disadvantage of SPI is it requires____ number of wires?

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68). Disadvantage of SPI is it allows only ____ number of master?

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69). Error checking can’t be done using _____ protocol.

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70). _______ is not present on data received in SPI.

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71). SPI has no _______ slave addressing system.

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72). Slaves in SPI with master clock doesn’t require ______ type of oscillators.

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73). Slaves in SPI doesn’t require ______ type of address.

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74). _______ are not necessary in SPI, unlike CAN bus.

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75). SPI has higher ________ than I2C or SMBus.

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SPI Protocol MCQs for Exams

76). AVR Controllers are coded using a _____ Interface.

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77). SPI distance can be handled via transceivers like ______?

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78). In SPI, master can ______ the next clock edge to slow the transfer rate.

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79). A Full duplex capability makes ______ protocol very simple for master/slave applications.

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80). Daisy chain ype configuration requires _____ to gain a bank of I/P’s or O/P’s via SPI.

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81)._________ are used in Independent slave configuration between power sources and chip selections?

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82). Sometimes SPI uses other signals to send an _______signal inorder to host the CPU.

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83). Quad SPI, Dual SPI are variants of _____ mode of communication.

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84). SPI protocol ______ are tools which sample an SPI bus and decode the electrical signals.

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85). If slave devices are not selected then their MISO Signal becomes _______?

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86). Signals in SPI are unidirectional which allows easy ______ isolation?

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87). QSPI stands for ___________?

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88). There are similarities between SPI and _____ protocol.

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89). If CPOL and CPHA are 0, then the data is sampled at the main ____ edge of the clock.

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90). If CPOL =0 and CPHA are 1, then the data is sampled at ____ of the clock.

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91). If CPOL =1 and CPHA are 0, then the data is sampled at the main ____ edge of the clock.

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92). If CPOL =1 and CPHA are 1, then the data is sampled at the drag ____ edge of the clock.

Hint
93). Using the Arduino module, SPI is programmed using _____ commands?

Hint
94). Using the Arduino SPI Library, the speed is set by the ______ function?

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95). Using the Arduino SPI Library, the data is sent by the ______ function?

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96). Using the Arduino SPI Library, the raising and falling edge is controlled by ___ function?

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97). Using the Arduino SPI Library, the clock frequency which divides is ____ MHz.

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98). SPI supports _____ peripherals.

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99). COPI stands for _______?

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100). CIPO Stands for _____?

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For More MCQs

  • Modbus Protocol Question & Answers
  • I2C Protocol Question & Answers
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