The PCIe Non-Transparent Bridge (NTB) facilitates data exchange between separate PCIe domains without exposing the connected device details to each domain, proving an essential aspect for embedding systems. This IP core streamlines high-performance systems by efficiently managing PCIe traffic across domains within an AXI4-Stream framework. Its adaptability for embedded applications like automotive electronic control units (ECUs) ensures low-delay, high-throughput applications can run smoothly within stringent resource limits.