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M22521
12-Port 10/100/1000 Mbps Ethernet MAC with an Embedded SerDes
Overview
Description
The 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.
Features
- 12 line interfaces independently configurable to the SerDes and SGMII modes
- OIF-SPI-4.2 system side interfaces
- 12 independent 10/100/1000 Mbps Ethernet MACs
- IEEE 802.3x based Flow Control and PAUSE frame generation support
- RFC 2819 compliant statistics counters and additional billing and WRED counters per MAC
- QoS support with up to four priority queues per port for triple play applications
- On-chip packet buffer memory with Jumbo frame support for all ports
- Fair queuing with MDRR mechanism
- Intelligent 2:1 and 4:1 oversubscription support using WRED mechanism
- Egress broadcast and multicast dedicated queues for video distribution applications
- OAM&P support with Ethernet managed link (EML)
- 1+1 link redundancy and protection switching support
- 16/32-bit CPU interface for initialization and control
- IEEE 1149.1 compliant boundary scan, embedded pattern generators and loop back test support
Documentation
- Sales / Marketing
- Product Briefs
-
Eagle Family Product Brief (488.55 KB)
October 25, 2007
-
Eagle Family Product Brief (488.55 KB)
- Hardware Design Docs
- RoHS/IPC Report
-
M22521G-12 IPC Report (1.49 MB)
April 13, 2011
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M22521G-12 IPC Report (1.49 MB)
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