SLVSG63A January 2023 – March 2024 DRV8143-Q1
PRODUCTION DATA
The SPI variant has full-duplex, 4-wire synchronous communication that is used to set device configurations, operating parameters, and read out diagnostic information from the device. The SPI operates in peripheral mode and connects to a controller. The serial data input (SDI) word consists of a 16-bit word, with an 8-bit command (A1), followed by 8-bit data (D1). The serial data output (SDO) word consists of the FAULT_SUMMARY byte (S1), followed by a report byte (R1). The report byte is either the register data being accessed by read command or null for a write command. The data sequence between the MCU and the SPI peripheral driver is shown in Figure 7-8.
A valid frame must meet the following conditions: