In AxiStream the tkeep value in each transfer denotes the valid bytes in the tdata field of the same transfer. In systemverilog i want to use tkeep to mask (set to 0) the invalid bits in the tdata field. If tkeep denoted invalid bits then I could simply do: masked_tdata = tdata & tkeep; However… Read More Byte Masking AxiStream: How to mask tdata with tkeep systemverilog