Intelligent Subsystems for IXP-Based Advanced Development Platforms

Intelligent Subsystems for IXP-Based Advanced Development Platforms

By NetLogic Microsystems, Inc.

NetLogic Microsystems is a semiconductor company that designs, develops and markets high performance knowledge-based processors for a variety of advanced networking systems, including routers, switches, access multiplexers and networked storage devices. NetLogic has been offering complete systems level solutions targeted for Intel® Network Processors for over a year.

NetLogic also achieved the distinction of being the first vendor to ship a family of monolithic knowledge-based processors with dual QDRII ports in December 2003. The largest family member, the NL5512GLQ knowledge-based processors can support up to 512K IPv4 and up to128K IPv6 records per device or 128K IPv4 and 64K IPv6 Access Control List (ACL) records or multi-field classification records per-device. The devices seamlessly interface to network processors that follow the industry-standard Network Processing Forum (NPF) LA-1 specification, including the Intel® IXP2400 and IXP2800, and IXP2850 Network Processors. All family members are available as single-die offerings in 31mm x 31mm FcBGA packages.

In addition to the dual QDRII ports, the NL5000GLQ also offers a general-purpose host control plane processor (CPU) port and Associated Data SRAM port eliminating the glue-logic required for interfacing multiple devices, thus minimizing the board space. This in turn leads to significant reduction in system cost and power consumption.

The NetLogic NL5000GLQ can handle 32 Gbps of data packet throughput. To enable this high-speed data throughput, the advanced NPF LA-1 output ports of NetLogic’s NL5000GLQ knowledge-based processors support de-skewing and controlled drive strength, aimed at providing accurately placed clock and data transitions. To achieve accurate placement of the data-valid window, the ports use de-skewing technology that provides output data/clock transitions occurring in lockstep with the output clock references. Advanced circuit design provides a controlled drive-strength environment which is unaffected by process, voltage and temperature variations.

Additionally, to further enhance interface performance, NetLogic’s NL5000GLQ knowledge-based processors use advanced design techniques to improve the signal integrity in their high-performance flip-chip package technology. This unique package design plays a critical role in achieving I/O data rates of 32Gbps. In-package routing has been optimized to minimize skew between signals within important signal groups to yield maximum set-up and hold times for high-speed inputs with minimal loss of edge-placement accuracy for high-speed outputs.

To assist systems designers in overcoming lengthy design cycles, the NL5000GLQ is offered with an integrated development environment (IDE), with complete software and hardware development kits (SDK and HDK), designed to support the Intel® IXP2400 and IXP28xx network processors. This comprehensive solution allows system designers to test and evaluate integral system interoperability and develop application software in a pre- and post-hardware environment, greatly accelerating system development and time-to-market.

The IDE combines NetLogic’s SDK 3.0 and the NL5000EGLQ-EVB evaluation board with reference schematics. The evaluation board contains an NL5000GLQ device with dual QDR-II interface ports and an 8MB associated data SRAM. The SDK 3.0 includes a foreign object model (FOM), device initialization, application programming interfaces (APIs), device drivers, table management software for forwarding and packet classification, data plane macros for the network processor, and network processor sample code for development and evaluation of a system. The FOM simulates NetLogic’s NL5000GLQ knowledge-based processor for use with the Intel® IXP2400 and IXP28xx network processors and Intel’s Transactor. The FOM runs on Windows 98, NT 4 through 5.1, including Windows 2000, and XP.

The NL5000EGLQ-EVB evaluation board is designed to plug directly into the Intel® IXDP2401, IXDP2801, and IXDP2851 Advanced Development Platforms (see photo), which are based on the PICMG 3.x ATCA specification. By adopting ATCA technology, equipment manufacturers benefit from increased flexibility with product design. With the availability of a common form factor, applications that usually require a whole shelf of equipment can be condensed into a single chassis. This reduces complexity and promotes the integration of a single converged platform.

Contact Information

NetLogic Microsystems, Inc.
1875 Charleston Road
Mountain View, CA 94043-1215
650.961.1215 Telephone
650.961.1092 Fax