Hi @SandyHCL
I deeply analyzed the platform support for the FLS driver features in User Mode, and the Synchronize Cache Feature is not supported by the RTD versions compliant with AUTOSAR 4.4. If you want to use this feature I would recommend using RTD versions compliant with AUTOSAR R21-11 as RTD version 3.0.0 P07.
B.R.
VaneB