Which of the following are slave select pins in SPI? SS,SS(bar) CS, CS (bar) CE All the above
Question
Which of the following are slave select pins in SPI?
- SS
- SS(bar)
- CS
- CS (bar)
- CE
- All the above
Solution
All of the above are slave select pins in SPI.
Here's a brief explanation:
-
SS: This stands for Slave Select. It's an input to the SPI slave. The master uses this pin to select the slave with which it wants to communicate.
-
SS(bar): This is the negation of the Slave Select pin. It's also an input to the SPI slave. The master uses this pin to deselect the slave with which it was communicating.
-
CS: This stands for Chip Select. It's essentially the same as Slave Select, but it's a more general term that can be used in contexts outside of SPI.
-
CS(bar): This is the negation of the Chip Select pin. Like SS(bar), it's used to deselect a chip.
-
CE: This stands for Chip Enable. It's similar to Chip Select, but it's typically used in contexts where multiple chips are being used simultaneously.
So, all of the above are used in SPI to select and deselect slaves/chips for communication.
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