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SMSC LAN9420/LAN9420i DATASHEET Revision 1.22 (09-25-08)

Datasheet

PRODUCT FEATURES

LAN9420/LAN9420i

Single-Chip Ethernet Controller

with HP Auto-MDIX Support

and PCI Interface

Highlights

 Optimized for embedded applications with 32-bit

RISC CPUs

 Integrated descriptor based scatter-gather DMA and

IRQ deassertion timer effectively increase network

throughput and reduce CPU loading

 Integrated Ethernet MAC with full-duplex support

 Integrated 10/100 Ethernet PHY with HP Auto-MDIX

support

 32-bit, 33MHz, PCI 3.0 compliant interface

 Reduced power operating modes with PCI Power

Management Specification 1.1 compliance

 Supports multiple audio & video streams over

Ethernet

Target Applications

 Cable, satellite, and IP set-top boxes

 Digital televisions

 Digital video recorders

 Home gateways

 Digital media clients/servers

 Industrial automation systems

 Industrial/single board PC

 Kiosk/POS enterprise equipment

Key Benefits

 Integrated High-Performance 10/100 Ethernet

Controller

— Fully compliant with IEEE802.3/802.3u

— Integrated Ethernet MAC and PHY

— 10BASE-T and 100BASE-TX support

— Full- and half-duplex support

— Full-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

— Wakeup packet support

— Integrated 10/100 Ethernet PHY

– Auto-negotiation

– Automatic polarity detection and correction

– Supports HP Auto-MDIX

– Supports energy-detect power down

— Support for 3 status LEDs

— Receive and transmit TCP checksum offload

 PCI Interface

— PCI Local Bus Specification Revision 3.0 compliant

— 32-bit/33-MHz PCI bus

— Descriptor based scatter-gather DMA enables zero-

copy drivers

 Comprehensive Power Management Features

— Supports PCI Bus Power Management Interface

Specification, Revision 1.1

— Supports optional wake from D3cold

(via configuration strap option when Vaux is available)

— Wake on LAN

— Wake on link status change (energy detect)

— Magic packet wakeup

 General Purpose I/O

— 3 programmable GPIO pins

— 2 GPO pins

 Support for Optional EEPROM

— Serial interface provided for EEPROM

— Used to store PCI and MAC address configuration

values

 Miscellaneous Features

— Big/Little/Mixed endian support for registers,

descriptors, and buffers

— IRQ deassertion timer

— General purpose timer

 Single 3.3V Power Supply

— Integrated 1.8V regulator

 Packaging

— Available in 128-pin VTQFP Lead-free RoHS Compliant

package

 Environmental

— Available in commercial & industrial temperature ranges

1 2 3 4 5 6 ... 168 169

Shrnutí obsahu

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SMSC LAN9420/LAN9420i DATASHEET Revision 1.22 (09-25-08) DatasheetPRODUCT FEATURESLAN9420/LAN9420i Single-Chip Ethernet Controller with HP Auto-MDIX

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ORDER NUMBERS:LAN9420-NU FOR 128-PIN VTQFP, LEAD-FREE ROHS COMPLIANT PACKAGE (0 TO 70oC)LAN9420i-NU FOR 128-PIN VTQFP, LEAD-FREE ROHS COMPLIANT PACKAG

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Single-Chip Ethernet Controller with HP Auto-MDIX Support and PCI InterfaceDatasheetSMSC LAN9420/LAN9420i 99 Revision 1.22 (09-25-08)DATASHEET4.2.11 E

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