AXI Sideband Formatter Utility

The Xilinx® LogiCORE™ AXI Sideband Formatter Utility is used to insert and recover sideband information onto the AXI USER signals for transport across an AXI network. It takes advantage of the way that the AXI SmartConnect IP propagates USER signals across an arbitrary network topolgy with arbitrary transaction transformations. It works by adding low-order bits to the USER field to pass on parity or a master ID (SMID), preserving existing USER data in the process.

The Sideband IP extends the information content carried by AXI by passing on information that may be useful to an embedded system, as in the case of the SMID, while preserving standard AXI interface compliance.