ISM330DLC CS and OCS_Aux pin states

[GnR]

If the ISM330DLC is connected to two separate dedicated SPI buses (i.e. no other SPI slaves on the bus) can the CS and OCS_Aux pins be connected to ground or do they have to be controlled by their respective SPI masters?

[Eleon BORLINI]

Hi @GnR​ ,

let me check if I well understood the question. You have an ISM330DLC wired to two different SPI lines (so basically these lines are shorting at the device pad level): if so, you cannot set one of the two (or both) CS to GND, since you need them to be driven low or high for starting and ending the SPI communication.

For the OCS_Aux pin, as stated in the datasheet, if you don't need it you have to left it unconnected (Leave pin electrically unconnected and soldered to PCB).

-Eleon