General Description

The LAN9220 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 LAN9220 is fully IEEE 802.3 10BASE-T and 802.3u 100BASE-TX compliant, and supports HP

Auto-MDIX. The variable voltage I/O signals of the LAN9220 accommodate lower voltage I/O signalling without the need for voltage level shifters.

PRODUCT FEATURES

Highlights

„ Efficient architecture with low CPU overhead

„ Easily interfaces to most 16-bit embedded CPU’s

„ 1.8V to 3.3V variable voltage I/O accommodates wide range of I/O signalling without voltage level shifters

„ Integrated PHY with HP Auto-MDIX support

„ Integrated checksum offload engine helps reduce CPU load

„ Low pin count and small body size package for small form factor system designs

Target Applications

„ Cable, satellite, and IP set-top boxes

„ Digital video recorders

„ Video-over IP solutions, IP PBX & video phones

„ Wireless routers & access points

„ Audio distribution systems

„ Printers, kiosks, security systems

„ General embedded applications

Key Benefits

„ Non-PCI Ethernet controller for standard performance applications

— 16-bit interface

— Burst-mode read support

„ Minimizes dropped packets

— Internal buffer memory can store over 200 packets

— Automatic PAUSE and back-pressure flow control Minimizes CPU overhead

— Supports Slave-DMA

— Interrupt Pin with Programmable Hold-off timer

„ Reduces system cost and increases design flexibility

„ SRAM-like interface easily interfaces to most embedded CPU’s or SoC’s

„ Reduced Power Modes

— Numerous power management modes

— Wake on LAN

— Magic packet wakeup

— Wakeup indicator event signal

— Link Status Change

„ Single chip Ethernet controller

— Fully compliant with IEEE 802.3/802.3u standards

— Integrated Ethernet MAC and PHY

— 10BASE-T and 100BASE-TX support

— Full- and Half-duplex support

— Full-duplex flow control

— Backpressure for half-duplex flow control

— Preamble generation and removal

— Automatic 32-bit CRC generation and checking

— Automatic payload padding and pad removal

— Loop-back modes

„ Flexible address filtering modes

— One 48-bit perfect address

— 64 hash-filtered multicast addresses

— Pass all multicast

— Promiscuous mode

— Inverse filtering

— Pass all incoming with status report

— Disable reception of broadcast packets

„ Integrated 10/100 Ethernet PHY

— Supports HP Auto-MDIX

— Auto-negotiation

— Supports energy-detect power down

„ Host bus interface

— Simple, SRAM-like interface

— 16-bit data bus

— 16Kbyte FIFO with flexible TX/RX allocation

— One configurable host interrupt

„ Miscellaneous features

— Small form factor, 56-pin QFN lead-free RoHS Compliant package

— Integrated 1.8V regulator

— Integrated checksum offload engine

— Mixed endian support

— General Purpose Timer

— Optional EEPROM interface

— Support for 3 status LEDs multiplexed with Programmable GPIO signals

„ Single 3.3V Power Supply with Variable Voltage I/O

„ 0°C to +70°C Commercial Temperature Support

Applications

The LAN9220 is well suited for many embedded applications, including:

„ Printers, kiosks, POS terminals and security systems

„ Audio distribution systems

„ General embedded systems

„ Basic cable, satellite and IP set-top boxes

„ Voice-over-IP solutions