SPRUIL1D May 2019 – December 2024 DRA829J , DRA829J-Q1 , DRA829V , DRA829V-Q1 , TDA4VM , TDA4VM-Q1
Arm has defined the DTI (Distributed Translation Interface) message protocol to convey translation requests and responses between the TBUs and TCU. The protocol was defined to allow for a variety of transport mechanisms. The device uses AXI for DTI transport. Standard AXI bus components multiplex the TBU DTI requests onto a single command bus that the TCU reads. To maintain single-cycle TCU throughput, an AXI read channel returns DTI responses to the TBUs.
Figure 8-15 DTI Functional Diagram