DRV8823-Q1: interface problem

Part Number:DRV8823-Q1

Dear TI Experts,

I am now using DRV8823-Q1.

And I want to double check with you is it SPI interface?

As far as I am concerned, SPI is made up of MOSI MISO SCLK NSS,

So how should I connect the below Serial interface to SPI interface? 

Does DRV8823 have the function of returing the status of stepper motor's to MCU？

Looking for your reply, THANKS！