The following figure shows the Routing tab of the Customize IP dialog box.
Use the Routing tab to define the decoding used by the NoC to route AXI4-Stream traffic from NMU to NSU based on the TDEST signal. Each NSU must have a BASE/HIGH range that is within the valid width of the TDEST width specified on the General tab. The BASE/HIGH pair must not overlap NSU interfaces.
When a transfer is received at the NMU, the TDEST is decoded based on the table, and converted to the DestID of the intended NSU. This enables M:N routing of AXI4-Stream traffic. The decode_err output indicates that a incoming transfer has an TDEST value that does not map to a valid Master Interface. Invalid TDEST transfers are dropped. The output is only valid if the TDEST signal is present and used for routing.