I am using BSP 3.14.52. From the release notes of this version, it supported si4763. But the RDS is not working. And the RDS is even not included in the unit_test code.
The RDS has to trig the interrupt flag in status register, we monitor this flag and it has never been set. I.mx6 sabre AI board has interface to si4763 daughter board. If any IO used for interrupt, I think it should be in the interface.