The upcoming PCIe® 6.0 specification introduces Flow Control Unit (FLIT) encoding, which enables the specification to provide low latency with high efficiency. FLIT mode is adopted for the PCIe 6.0 architecture because error correction needs to operate on fixed sized packets.

With the widespread adoption of compute-intensive workloads – such as artificial intelligence and machine learning – in enterprise and cloud data centers, high-speed, low-latency interconnects like PCI Express^® architecture are required to connect high-performance nodes.