DRV8434S: nSCS FOR SPI COMMUNICATION

Hi team,

Here's an issue from the customer may need your help:

The customer use SPI communication between MCU and drv8434s, but the MCU do not have enough IO , so they would like to use the nscs pin to connect to ground to make the drv8434s is always selected( drv8434 is the only one device to communicate with MCU through SPI), but in drv8434s datasheet, it's found the  below description , does this means it's required to pull nscs pin high during the communication? if keep it low, the spi communication will failed?

Thanks.

Best Regards,

Cherry