I am just starting to fool with SPI.  I am more familiar with I2C.

What I can't seem to figure out is, if I have multiple SPI devices on the
same bus, is there anything I need to do to the bus lines, like in I2C, you
need some 2k pullups?

One reason I ask is, how do I make sure that the SO lines don't cause
shorting problem.  If a slave on the SPI bus is not selected, how can I be
sure that the SO line is tri-stated, and not low, when someone else drives
it high for transmitting data?

Can someone point me at some document that clarifies the spec?

Thanks,

- Ted


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