AnsweredAssumed Answered

LPS331AP - SPI mode - Multiple slaves sharing common SPI bus

Question asked by raghavani.sumeet on Oct 7, 2014
Latest reply on Oct 28, 2015 by Muhuho.Adalberto
We are planning to use LPS331AP in one of our design. LPS331AP will be interface to MCU using 4-wire interface. I could not find conclusive information on whether Data out (pin 7) is tri-stated/high impedance when SPI communication is terminated (CS = high). Need to use couple more devices on same SPI bus.
Also, CS pin is used to put sensor into SPI / I2C mode, so when SPI communication needs to terminated, MCU will have to drive CS=high, this will in turn put sensor into I2C mode, is this not conflicting ? 

Also, do INT1/2 pins need external pull up/down resistors on board ?

Outcomes