描述 Description

***All products in this section are DISCONTINUED parts. This section is for SUPPORT ONLY***Contact SupportThe Eagle-12 (M22521) aggregates twelve 10/100/1G ports. This devices support industry standard SerDes/SGMII interfaces on the line-side and a SPI-4.2 interface on the system-side. Each line side port can be independently configured to operate at 10 Megabit, 100 Megabit, or 1 Gigabit line speed. On the system-side, the SPI-4.2 interface can be configured to run at the full-speed or at quarter-speed for a total of up to 12.8 Gbps and 2.5 Gbps data throughput respectively. The devices include on chip packet memory, multi-rate Ethernet MACs, flexible oversubscription processing logic and an innovative egress multi-cast support.

特性 Features

·12 line interfaces independently configurable to the SerDes and SGMII modes
·IEEE 1149.1 compliant boundary scan, embedded pattern generators and loop back test support
·16/32-bit CPU interface for initialization and control
·1+1 link redundancy and protection switching support
·OAM&P support with Ethernet managed link (EML)
·Egress broadcast and multicast dedicated queues for video distribution applications
·Intelligent 2:1 and 4:1 oversubscription support using WRED mechanism
·Fair queuing with MDRR mechanism
·On-chip packet buffer memory with Jumbo frame support for all ports
·QoS support with up to four priority queues per port for triple play applications
·RFC 2819 compliant statistics counters and additional billing and WRED counters per MAC
·IEEE 802.3x based Flow Control and PAUSE frame generation support
·12 independent 10/100/1000 Mbps Ethernet MACs
·OIF-SPI-4.2 system side interfaces