SNLS454A November 2014 – March 2019 DS90UB947-Q1
PRODUCTION DATA.
SPI is configured over I2C using the High-Speed Control Channel Configuration (HSCC_CONTROL) register 0x43 on the deserializer. 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).
The High-Speed Control Channel should be enabled only after Rx lock has been established.