LAN9218 datasheet(9/130 Pages) SMSC

9 / 130 page

High-Performance Single-Chip 10/100 Ethernet Controller with HP Auto-MDIX

Datasheet

SMSC LAN9218

Revision 1.5 (07-18-06)

DATASHEET

Chapter 1 General Description

The LAN9218 is a full-featured, single-chip 10/100 Ethernet controller designed for embedded

applications where performance, flexibility, ease of integration and system cost control are required.

The LAN9218 has been specifically architected to provide the highest performance possible for any

given architecture. The LAN9218 is fully IEEE 802.3 10BASE-T and 802.3u 100BASE-TX compliant,

and supports HP Auto-MDIX.

The LAN9218 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 . The LAN9218 includes large

transmit and receive data FIFOs with a high-speed host bus interface to accommodate high bandwidth,

high latency applications. In addition, the LAN9218 memory buffer architecture allows the most efficient

use of memory resources by optimizing packet granularity.

Applications

The LAN9218 is well suited for many high performance embedded applications, including:

High-end cable, satellite and IP set-top boxes

Video distribution systems

Multi-room PVR (Personal Video Recorder)

Digital video recorders

High-definition televisions

Digital media clients/servers

Home gateways

The LAN9218 also supports features which reduce or eliminate packet loss. Its internal 16-KByte

SRAM can hold over 200 received packets. If the receive FIFO gets too full, the LAN9218 can

automatically generate flow control packets to the remote node, or assert back-pressure on the remote

node by generating network collisions.

The LAN9218 supports numerous power management and wakeup features. The LAN9218 can be

placed in a reduced power mode and can be programmed to issue an external wake signal via several

methods, including “Magic Packet”, “Wake on LAN” and “Link Status Change”. This signal is ideal for

triggering system power-up using remote Ethernet wakeup events. The device can be removed from

the low power state via a host processor command.

LAN9218 bảng dữ liệu(PDF) 9 Page - SMSC Corporation