The DRV8714H-Q1 hardware interface device variant converts the four SPI pins into four resistor configurable inputs, GAIN, VDS, IDRIVE, and MODE. This allows for the application designer to configure the most commonly used device settings by tying the pin logic high or logic low, or with a simple pullup or pulldown resistor. This removes the requirement for an SPI bus from the external controller. General fault information can still be obtained through the nFAULT pin.
The hardware interface settings are latched on power up of the device. They can reconfigured by putting the device in sleep mode with the nSLEEP pin, changing the setting, and reenabling the device through nSLEEP.
For more information on the hardware interface, see the Pin Diagrams section.