SPRUIU1C July 2020 – February 2024 DRA821U , DRA821U-Q1
The SoC memory map view shown in Section 2.1, Section 2.2 and Section 2.3 is used by the processors in COMPUTE_CLUSTER0 but there are processors which support only 32-bit addressing and cannot access higher address ranges. For these processors RAT modules are integrated to remap the 32-bit addresses to 48-bit addresses allowing higher address range accesses. The "RAT_REGION" regions shown in Table 2-5 and Table 2-6 are dedicated to RAT remapping.
For more information about the RAT module, see Section 8.4Region-based Address Translation (RAT) Module.