CPCI-X is a PCI-X compliant design scoped to provide a system interface to any networking application involving streaming data transfers. It basically focuses on the transfer of large chunks of data between the DMA unit of backend and the host memory adhering to PCI-X protocol (Rev 1.0), which is downward compatible with PCI protocol (Rev 2.2) and also on configuring the backend registers through memory accesses. The core provides a DMA arbitrator (optimized for two DMA controllers) and the initiator-target pair to handle these transactions as per the PCI-X(Rev 1.0) protocol.