BCM5670 ® BCM5670 8-PORT, 160 Gbps SWITCH FABRIC SUMMARY OF BENEFITS FEATURES • Eight 10-Gbps (HiGig™) switch fabric ports • Nonblocking, 160-Gbps wire speed, backplane/switch fabric • • • • • • • System vendors can build high-performance, high-density • performance Forwarding rate of 119 million packets/second • Eight Integrated high-speed XAUI interfaces 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 TARGET APPLICATIONS • Switch fabric in modular Gigabit Ethernet switches • Switch fabric in high-port-count stand-alone or stackable 2 I C interface Gigabit Ethernet switches Broadcom switch API compatibility • Switch fabric for chassis and in-server switch blade Advanced 0.13 µm CMOS technology applications • Packet-based switch fabric in telco applications Small 600-pin EBGA package Low power: 10W 10 Gbps HiGig Interface 10G HiGig 10 Gbps FORWARDING TABLES CMIC RAM HiGig QUEUE SYSTEM HiGig 10 Gbps HiGig Protocol Processor HiGig 10 Gbps • • • • • • Gigabit Ethernet LAN switches in several form factors. Support for multiple CoS and very low latency enables the support of VoIP and other voice, video, and data applications. Built-in high-speed XAUI interfaces with Broadcom-unique SerDes technology eases and accelerates system design, while reducing cost and conserving board space. A 1152-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. Broadcom switch API compatibility enables reuse of resources and fast time-to-market. 4 channels of 3.125 Gbps (XAUI I/F) Nonblocking 8-Port Gigabit Ethernet Switch OVERVIEW HiGig (10 Gbps) Port 3 HiGig (10 Gbps) Port 2 XAUI MAC MAC MAC MMU Ingress 128 KB RAM Pause_control 128 KB RAM FIFO FIFO MMU Ingress I2C Bus PCI Bus Port 0 XAUI Pause_control MMU Port 1 XAUI Pause_control BCM5670 HiGig (10 Gbps) 128 KB RAM I2C I/F PCI DMA Buffers FIFO CMIC Bus Interface Ingress MR Bus Controller Ingress Ingress MAC XAUI General Description The Broadcom BCM5670 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. Highly Integrated The integration of Broadcom’s robust XAUI-compatible serializer/ deserializer (SerDes) interface on each BCM5670 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 Ingress FIFO XAUI Port 7 HiGig (10 Gbps) MMU 128 KB RAM MAC XAUI Port 6 HiGig (10 Gbps) MMU 128 KB RAM MAC XAUI Port 5 HiGig (10 Gbps) FIFO MAC XAUI Port 4 Ingress Pause_control FIFO MMU 128 KB RAM Pause_control MAC Ingress 128 KB RAM Pause_control FIFO MMU Pause_control Pause_control FIFO MMU 128 KB RAM Port 8 HiGig (10 Gbps) HiGig (10 Gbps) interface is 20 Gbps (10 Gbps, full-duplex). The BCM5670 switch fabric interconnects other StrataXGS component chips across a 160-Gbps backplane. It introduces very low switching latency, enabling the high quality transmission of voice, video, and data traffic. Flexible Management The BCM5670 HiGig switch links to a host CPU through a PCI bus at speeds of 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 BCM5670 switch. The BCM5670 switch can also work without host CPU support, using an I2C interface to initialize chip registers and forwarding tables. Also, the BCM5632 chip can link to a BCM5670 via an XGMII-to-XAUI converter, such as the BCM8011. As many as 15 BCM5632 chips can be interconnected, providing up to 180 Gigabit Ethernet ports. The BCM5670 delivers wire speed switching performance across all of the ports simultaneously. The effective bandwidth of each HiGig 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. 5670-PB05-R 03/25/04 Phone: 949-450-8700 Fax: 949-450-8710 E-mail: [email protected] Web: www.broadcom.com