ET4000数据手册Broadcom中文资料规格书

描述 Description

Overview
The 28-port ET4000 is part of the Agere Systems ET4K family of gigabit Ethernet switch chip sets. These cost-effective, true switch-on-chip solutions have been developed to help simplify your design and production efforts for GbE switching systems.
The Agere Systems ET4000 is a complete switch solution that provides 28 gigabit Ethernet (GbE) ports (IEEE® compliant 802.3z 10/100/1000 Mbits/s Ethernet MACs) in a single chip. Twenty-four of the MACs connect to external PHYs via 6-pin LVDS SGMII interfaces, four can be connected to external fiber PHYs via SerDes interfaces.Features
• Twenty-eight 10/100/1000 Mbits/s Ethernet ports(24 SGMII interfaces to GbE copper PHYs, up to four SerDes interfaces to GbE fiber ports).
• Aggregate 42 Mpackets/s switching capacity (wire speed operation).
• 32-bit, 66 MHz PCI processor interface.
• Two MDIO interfaces.
• Integrated packet buffer memory.
• Integrated address table memories.
• Full IEEE 802.1D bridging.
• Extensive VLAN support.
• L2/L3/L4 classification for access control list (ACL) and quality of service (QoS).
• Supporting IPv4 and IPv6
• Advanced traffic management functions.
• Link aggregation and mirroring.
• Advanced 0.13 µm CMOS technology.
• 525-pin FCBGA package.Applications
The Agere Systems ET4000 chip set solutions are used to create competitive Layer 2+ gigabit Ethernet desktop switches. They can be used for a 24-port port gigabit Ethernet switch in standalone configuration, or with the addition of four fiber ports in standalone configuration, or in high-density gigabit Ethernet fabric switches.