When configured to operate with SPI interface, the device has full duplex, 4-wire synchronous communication that is used to set device configurations, operating parameters, and read out diagnostic information from the device. This section describes the SPI protocol, the command structure, and the control and status registers. The SPI operates in target mode and can be connected with a controller in the following configurations:
- One target device
- Multiple target devices in parallel connection
- Multiple target devices in series (daisy chain) connection