DRV8323: DRV8323 CAL pin define and Rsen max current limit

Part Number:DRV8323

Dear,

We saw the DRV8323 datasheet, and we  have two question  as below:

1.  we saw the CAL pin define:  Amplifier calibration input. Set logic high to internally short amplifier inputs and perform auto offset calibration., but we dont`t know how to use the pin to application, could Example?

2.  Rsen max current limit?

If any  suggestion, Please advise me.

Thanks,

Best regards,

Lawrence.