SPRUIL1D May 2019 – December 2024 DRA829J , DRA829J-Q1 , DRA829V , DRA829V-Q1 , TDA4VM , TDA4VM-Q1
The PAT module reads transactions from CBASS, performs address translations from physical address or intermediate physical addresses using address lookup, then returns the same type (physical or intermediate physical) address transactions to CBASS. Details on PAT operation can be found in Section 8.3.3, Page Based Address Translation Unit (PAT).
Figure 8-17 PAT Functional DiagramAfter address translation, the transaction passes through a transaction modification block that can change sideband information such as OrderID to divert the transaction to other modules for further translation (typically a PVU module). This transaction modification may use K3-specific data stored as page attributes in the PAT. Transaction modification can be globally disabled for all PAT instances with a single register write.