TM Product Brief Cortina Systems(R) IXF1024 24-Port 10/100/1000 Mbps Ethernet Media Access Controller Product Description The Cortina Systems(R) IXF1024 24-Port 10/100/1000 Mbps Ethernet Media Access Controller (IXF1024 MAC) is a highly integrated device that allows 2:1 oversubscription, which helps lower the cost per port. A SPI-4.2 system interface allows direct connection to network processors and forwarding engines. Advanced data path management techniques are used to funnel 24 Gigabits of bandwidth across a 10 Gbps system interface. This oversubscription of bandwidth is practical as client server networks rarely utilize full bandwidth at the network edge. To implement oversubscription, Cortina Systems, Inc. (CortinaTM) has included data path management functions such as rate limiting on a per port basis, priority queuing, IEEE 802.3* compliant flow control, and programmable packet filtering. The device provides per port traffic statistics for performance monitoring, according to RMON RFC2819. The IXF1024 MAC is implemented in 0.13 CMOS technology and is packaged in a 672 Ball Grid Array (BGA) and requires two supply voltages, 1.2 V for the digital core and 2.5 V for the I/O. 10 Gbps System Interface SPI-4.2 Data & Status Interface Traffic Manager 10/100/1000 Ethernet MAC Core Per-Port FIFO 10/100/1000 Ethernet MAC Core Per-Port FIFO MDIO RGMII Interface Port 1 10/100/1000 Ethernet MAC Core Per-Port FIFO MDIO RGMII Interface Micro-Controller Interface Group FIFO MDIO RGMII Interface Port 2 Port 24 24x Media Interface IXF1024 MAC Block Diagram Copyright (c) 2004 - 2008 Cortina Systems, Inc. Product Brief Number: 303768-2.1 Typical Application of the IXF1024 MAC Modular Switch Line Card NPU or Forwarding Engine IXF1024 24x GbE MAC Octal 10/100/1000Mbps PHY Octal 10/100/1000Mbps PHY Octal 10/100/1000Mbps PHY 8x RJ-45 Connectors 8x RJ-45 Connectors 8x RJ-45 Connectors Copyright (c) 2004 - 2008 Cortina Systems, Inc. Product Brief Number: 303768-2.1 Features Benefits * 24-Port 10/100/1000 Mbps Ethernet MAC * High integration allows practical implementations of 24, 48 and 96-port line cards * 2:1 Oversubscription * Optimizes bandwidth usage at the network edge and reduces cost per port * Advanced Data Path Management * Enables oversubscription without switch congestion and packet loss * Automatic Flow Control per IEEE 802.3* * Standard compliant method for flow control that reduces control processor load * Packet Filtering and Priority Queuing * Allocates bandwidth to priority traffic * SPI-4.2 system side interface * Connects directly to network processors or custom forwarding engines * Flexible CPU interface * Supports a variety of 8/16/32-bit configurations * Typical Power Consumption - 0.25 W per channel * Allows line card implementations with high port count Key Applications * Modular Ethernet Switching Equipment at the Network Edge * Enterprise and Multi-service Edge Routers Cortina in Communications Cortina is a leading supplier of intelligent communication solutions through continuous innovations in advanced port processing and intelligent port connectivity to the Core, Metro, Access and Enterprise Market Segments. With our state-of-the-art high speed analog digital integration, we deliver a wide suite of products that address our customers' performance, density and flexibility needs enabling faster time-to-market, longer time-in-market, and increased revenue opportunities. Working closely with our customers to understand their system requirements and anticipate their needs, we are creating the foundation ingredients for new generations of services. *Other names and brands may be claimed as the property of others. TM Copyright (c) 2004 - 2008 Cortina Systems, Inc. Cortina Systems, Inc. 840 W California Ave. Sunnyvale, CA 94086 408-481-2300 sales@cortina-systems.com www.cortina-systems.com Product Brief Number: 303768-2.1