Single chip Ethernet controller is optimised for high definition video and multimedia

2005-07-08

Available from DT Electronics, SMSC’s LAN9118 is a full-featured, single-chip 10/100 Ethernet controller designed for embedded applications where performance, flexibility, ease of integration and system cost reduction are required. Primary applications are in high definition video and multimedia systems. The LAN9118 has been designed to provide the highest performance possible for any given architecture. It is fully IEEE 802.3 10BASE-T and 802.3u 100BASE-TX compliant and includes an integrated Ethernet MAC and PHY with a high-performance SRAM-like slave interface. The simple, yet highly functional host bus interface provides a glue-less connection to most common 16-bit and 32-bit microprocessors and microcontrollers.

LAN9118 includes large transmit and receive data FIFOs with a high-speed host bus interface to accommodate high bandwidth, high latency applications. In addition, the memory buffer architecture allows the most efficient use of memory resources by optimising packet granularity. Dropped packets are eliminated as the buffer memory can store 200 packets and automatic or host-triggered PAUSE and back-pressure flow control are supported.

The LAN9118 minimises CPU overhead and offers a choice of reduced power modes, and address filtering modes.

The chip comes in a lead-free, low profile 100-pin TQFP package. It operates from a single 3.3V power supply and has 5V tolerant I/O.