BCM5671 ® BCM5671 4-PORT, 80-Gbps SWITCH FABRIC SUMMARY OF BENEFITS FEATURES • Four 10-Gbps (HiGig™) switch fabric ports • Nonblocking, 80-Gbps wire speed backplane/switch fabric • System vendors can build high-performance, high-density Gigabit Ethernet LAN switches in several form factors. • Support for multiple CoS and very low latency enable the performance • Forwarding rate of 60 million packets/second • 4 integrated high performance XAUI interfaces • • • • support of VoIP and other voice, video, and data applications. • Built-in high-speed serial interfaces with Broadcom-unique SerDes technology eases and accelerates system design, while reducing cost and conserving board space. • A 640 KB internal data buffer memory eliminates the need for expensive external memory. • Drives up to 10m of low cost copper cables for stacking switch applications. Eight programmable priority queues per port Port trunking and mirroring across multiple devices Hot-swap capable with AC coupling Supports redundancy on linecards for chassis based applications • Advanced diagnostic features including IEEE 1149.1 boundary scan, JTAG and extensive BIST functionality • Resilient link configuration through active multipath forwarding • PCI interface • Switch fabric in modular Gigabit Ethernet switches • Switch fabric in high-port-count stand-alone or stackable Gigabit Ethernet switches • Switch fabric for chassis and in-server switch blade applications • Packet-based switch fabric in telco applications Broadcom switch API compatibility Advanced 0.13 µm CMOS technology Small 600-pin EBGA package Low power: 6W 10 Gbps HiGig Interface 10G HiGig 10 Gbps FORWARDING TABLES CMIC RAM HiGig QUEUE SYSTEM HiGig 10 Gbps HiGig Protocol Processor HiGig 10 Gbps • • • • TARGET APPLICATIONS 4 channels of 3.125 Gbps (XAUI I/F) Nonblocking 4-Port Gigabit Ethernet Switch OVERVIEW HiGig (10 Gbps) HiGig (10 Gbps) Port 4 HiGig (10 Gbps) Port 1 Port 2 XAUI XAUI XAUI MAC MAC MAC MAC Ingress MMU Ingress 128 KB RAM FIFO MMU Ingress 128 KB RAM Pause_control 128 KB RAM FIFO Pause_control MMU Pause_control 128 KB RAM FIFO I2C Bus PCI Bus Port 0 XAUI Pause_control MMU Port 3 HiGig (10 Gbps) PCI I2C I/F DMA Buffers FIFO CMIC Bus Interface Ingress MR Bus Controller BCM5671 General Description The Broadcom BCM5671 switch fabric is the central component of the modular and highly scalable StrataXGS Gigabit Ethernet switch architecture. StrataXGS components can be applied in a wide variety of configurations, enabling system designers to strategically balance cost, port density, and performance in the products they build. 20 Gbps (10 Gbps, full-duplex). The BCM5671 switch fabric interconnects other StrataXGS component chips across an 80-Gbps backplane. It introduces very low switching latency, enabling the highquality transmission of voice, video, and data traffic. The primary application of the BCM5671 is stackable solutions and linecard applications. Flexible Management Highly Integrated The integration of Broadcom’s robust XAUI-compatible serializer/ deserializer (SerDes) interface on each BCM5671 port reduces board complexity. The XAUI interface can be used to route high-speed signals across 44 inches of FR4, connectors, and backplanes. SerDes technology also enables the use of inexpensive cables for stacking applications. Superior Performance The BCM5671 delivers wire speed switching performance across all the ports simultaneously. The effective bandwidth of each HiGig interface is The BCM5671 HiGig switch links to a host CPU through a PCI bus at speeds up to 66 MHz. Bus mastering and advanced DMA are supported in hardware for the efficient exchange of packet data between CPU memory and the BCM5671 switch. The BCM5671 switch can also work without host CPU support, using an I2C interface to initialize chip registers and forwarding tables. The BCM5632 can also link to a BCM5671 via an XGMII-to-XAUI converter, such as the BCM8011. Broadcom®, the pulse logo, HiGig™ and Connecting everything® are trademarks of Broadcom Corporation and/or its subsidiaries in the United States and certain other countries. All other trademarks mentioned are the property of their respective owners. ® BROADCOM CORPORATION 16215 Alton Parkway, P.O. Box 57013 Irvine, California 92619-7013 © 2004 by BROADCOM CORPORATION. All rights reserved. 5671-PB05-R 03/25/04 Phone: 949-450-8700 Fax: 949-450-8710 E-mail: [email protected] Web: www.broadcom.com