This section outlines the limitations of the Aurora 8B/10B core for AXI4-Stream support. It is essential to observe two limitations while interfacing the Aurora 8B/10B core with the AXI4-Stream compliant interface core:
- The Aurora 8B/10B core supports only continuous aligned
streams and continuous unaligned streams. The position bytes are valid only at the
end of packet. In other words,
tkeepis sampled only attlastassertion. - The AXI4-Stream
protocol supports transfers with zero data at the end of the packet, but the Aurora 8B/10B core expects at least one byte to be
valid at the end of the packet. In other words,
tkeepshould contain a non-zero value duringtlastassertion.