Intel defined the PHY Interface for PCI Express (PIPE) as a standard interface between a PHY device and the Media Access (MAC) layer for PCI Express (PCIe) applications. The PIPE interface allows the PCI Express PHY device and the MAC layer to be implemented in discrete form (using an off-the-shelf PHY device) or in integrated form. The partitioning of the PCI Express Physical Layer shown below illustrates this flexibility.
The Lattice PCS PIPE IP core offers PCI Express PHY device functionality, compliant to the Intel PIPE Architecture Draft Version 1.00 (PIPE Ver 1.00), to any endpoint solutions. The PCS PIPE IP core utilizes the SERDES/PCS integrated in LatticeECP3 and LatticeECP2M FPGAs. The Lattice PCS PIPE IP core can be configured to support a link with one or four lanes.