6.2 Lane Reversal
(Ask a Question)The PCIESS supports lane reversal when required, allowing the PCIe physical I/O to be reversed with the block’s logical lanes for a more flexible PCB layout. Lane reversal functionality is incorporated into the PCIESS to be layout-agnostic with respect to lane ordering and lane polarity. Using lane reversal eases routing congestion on the PCB, leading to a cleaner interface between the PCIe host and the endpoint or root port.