DRV8323: Truth Table for 3x PWM Mode

Part Number:DRV8323

Hi,

GHx and SHx output "high" and GLx outputs "low" even if setting INHx and INLx to low when setting ENABLE pin from low to high and changing PWM mode from "6x PWM mode" to "3x PWM mode" via SPI interface with DRV8323S after power-on.
So, could you please tell me how to place SHx in Hi-Z when setting INHx and INLx to low as the following table 3 ?

Best regards,
Kato