ZHCSJH7 March 2019 DS90UB940N-Q1
PRODUCTION DATA.
SPI is configured over I2C using the high-speed control channel configuration (HSCC_CONTROL) register, 0x43 (see Table 11). HSCC_MODE (0x43[2:0]) must be configured for either high-speed, forward channel SPI mode (110) or high-speed, reverse channel SPI mode (111).