DRV8889-Q1: using SPI interface only

Part Number: DRV8889-Q1

Hi team,

Could you please advise If using SPI I/F I could leave unconnected pins of step and direction and use SPI for it?

My question is because my design has a few extra pins left and I would like to use only the SPI I/F to control the driver.

Thanks in advance 

Best regards,

Shai