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| BCM5670 (R) BCM5670 8-PORT, 160 Gbps SWITCH FABRIC FEATURES * Eight 10-Gbps (HiGigTM) switch fabric ports * Nonblocking, 160-Gbps wire speed, backplane/switch fabric * * * * * * 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 SUMMARY OF BENEFITS * System vendors can build high-performance, high-density * * * * * 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. 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 Gigabit Ethernet switches * * * * * I C interface Broadcom switch API compatibility Advanced 0.13 m CMOS technology Small 600-pin EBGA package Low power: 10W 2 * Switch fabric for chassis and in-server switch blade applications * Packet-based switch fabric in telco applications 10G HiGig QUEUE SYSTEM 10 Gbps HiGig Interface HiGig FORWARDING TABLES CMIC RAM 10 Gbps HiGig 10 Gbps HiGig Protocol Processor HiGig 10 Gbps 4 channels of 3.125 Gbps (XAUI I/F) Nonblocking 8-Port Gigabit Ethernet Switch OVERVIEW HiGig (10 Gbps) HiGig (10 Gbps) HiGig (10 Gbps) PCI Bus I2C Bus Port 3 XAUI Port 2 XAUI Port 1 XAUI Port 0 I2C I/F PCI BCM5670 MMU 128 KB RAM MAC Pause_control MAC Pause_control MAC DMA Buffers FIFO CMIC Bus Interface Pause_control FIFO FIFO MMU Ingress 128 KB RAM MMU Ingress 128 KB RAM Ingress MR Bus Controller Ingress Pause_control MMU 128 KB RAM Ingress Pause_control MMU 128 KB RAM Ingress Pause_control MMU 128 KB RAM Ingress Pause_control MMU 128 KB RAM Ingress Pause_control MMU 128 KB RAM FIFO FIFO FIFO FIFO FIFO MAC MAC MAC MAC MAC XAUI Port 4 HiGig (10 Gbps) XAUI Port 5 HiGig (10 Gbps) XAUI Port 6 HiGig (10 Gbps) XAUI Port 7 HiGig (10 Gbps) XAUI Port 8 HiGig (10 Gbps) 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 The BCM5670 delivers wire speed switching performance across all of the ports simultaneously. The effective bandwidth of each HiGig 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. Broadcom(R), the pulse logo, HiGigTM and Connecting everything(R) 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. (R) BROADCOM CORPORATION 16215 Alton Parkway, P.O. Box 57013 Irvine, California 92619-7013 (c) 2004 by BROADCOM CORPORATION. All rights reserved. 5670-PB05-R 03/25/04 Phone: 949-450-8700 Fax: 949-450-8710 E-mail: info@broadcom.com Web: www.broadcom.com |
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