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Tabula's I-40 device provides a bridge between 40Gbps Ethernet and Interlaken, the ascending
interconnect standard for communications. Interlaken provides a low pin-count interface for packet and
cell transfer between devices or between devices and a module, for aggregate bandwidths exceeding
64Gbps. 40 Gigabit Attachment Unit Interface (XLAUI) provides a low pin-count board-level interface to
connect a 40 Gigabit device to a module.
The I-40, when combined with one quad PHY, provides a flexible and cost effective bridge from a 10-lane Interlaken interface to a XLAUI interface. This provides a generic solution to meet multiple design requirements including device bridging such as NPU to Ethernet switch, and serial backplane applications. The I-40 Interlaken interface is compliant with the Interlaken Protocol Definition Revision 1.1 and the Interlaken Interoperability Recommendation Revision 1.2. The interface implements 10 6.25Gbps transmit receive SerDes channels and a low-speed transmit receive out-of-band status interface. The I-40 implements a 2.5MByte FIFO on the MAC receive path (XLAUI to Interlaken). This high level of memory integration provides buffering for over 250 Jumbo Ethernet frames (9KByte frame) resulting in loss-less flow control across the XLAUI interface with per-class flow control without any external DRAM. The complete solution was developed in partnership with NetLogic Systems to deliver a solution that is both cost effective and meets the highest signal-integrity standards. I40 Bridge Brochure >
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Interlaken - 40G Ethernet Bridge
