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BCM5385 Datasheet(PDF) 2 Page - Broadcom Corporation. |
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BCM5385 Datasheet(HTML) 2 Page - Broadcom Corporation. |
2 / 2 page OV E R V I E W ® Phone: 949-450-8700 Fax: 949-450-8710 E-mail: info@broadcom.com Web: www.broadcom.com BROADCOM CORPORATION 16215 Alton Parkway, P.O. Box 57013 Irvine, California 92619-7013 © 2004 by BROADCOM CORPORATION. All rights reserved. 5385-PB02-R 03/25/04 Broadcom®, the pulse logo, 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. The Broadcom BCM5385 device is a highly integrated solution. It combines all the functions of a high-speed switch system, including packet buffer, PHY transceivers, media access controllers, address management, and a nonblocking switch fabric into a single 0.13 µm CMOS device. It complies with IEEE 802.3, 802.3u, 802.3ab, and 802.3x specifications, including the MAC control, pause frame, and auto-negotiation subsections, providing compatibility with all industry- standard Ethernet, Fast Ethernet, and Gigabit Ethernet devices. This device contains four full-duplex 10/100/1000BASE-T transceivers, each of which performs all of the physical layer interface functions for 10BASE-T Ethernet on Category 3, 4, or 5 unshielded twisted-pair (UTP) cable and 100/1000BASE-T Fast/Gigabit Ethernet on Category 5 UTP cable. The remaining port features a standard RGMII interface to allow connection to Broadcom's market-leading 10/100/1000 transceiver family in order to provide fiber or copper Gigabit Ethernet connections. The media access controllers on the BCM5385 also support Jumbo Frames which are typically used for high-performance connections to servers because they offer a smaller percentage of overhead on the link for more efficiency. SPI or EEPROM interfaces provide easy programming of the on-chip 802.1p QoS and/or DiffServ/TOS. This allows switch traffic to be given different classes of priority or service-for example, voice traffic for IP phone applications, video traffic for multimedia applications, or data traffic for e-mail applications. Up to 4k virtual LANs (VLANs) can be set up via the SPI port for separation of different users or groups on the network. For multi-Gigabit per second connections, multiple ports of the BCM5385 can be grouped together to form logical links. These links feature automatic load balancing. Quality of Service (QoS) Switch Controller Gigabit MAC Port Mirroring Jumbo Frames Port Trunking Rate Control VLAN Gigabit MAC Gigabit MAC Gigabit MAC Gigabit MAC Gigabit PHY Gigabit PHY Gigabit PHY Gigabit PHY Copper Interface Port 0 Internal Regulators Register Space Memory Address Management MII Management Configuration Pins SPI Interface or EEPROM Interface Copper Interface Port 1 Copper Interface Port 2 Copper Interface Port 3 RGMII Interface Port 4 |
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