Methods and apparatus are provided for providing PCI Express support. A
device includes a hard-coded transceiver configured to support protocols
such as Fibre Channel and the 10 Gigabit Attachment Unit Interface
(XAUI), but the transceiver does not fully support PCI Express. Interface
circuitry is configured to supplement or replace hard-coded transceiver
components to provide PCI Express support. Interface circuitry allows PCI
Express cores to operate with the transceiver that does not fully support
PCI Express.