xi_size_e     beat size      streaming width
burst          axi_burst_e    burst type     sideband config (GP extension)
lock           axi_lock_e     lock type      static config (GP extension)
cache          axi_cache_e    cache type     static config (GP extension)
prot           axi_prot_e     prot type      static config (GP extension)
id             unsigned       AID            sideband config (GP extension)
burst_length   unsigned       burst length   data_length
data_words     svBitVecVal[]  payloa