SMSC LAN9420, LAN9420i manual

LAN9420/LAN9420i

Single-Chip Ethernet Controller with HP Auto-MDIX Support and PCI Interface

PRODUCT FEATURES				Datasheet
Highlights			–	Promiscuous mode
„	Optimized for embedded applications with 32-bit		–	Inverse filtering
			– Pass all incoming with status report
	RISC CPUs
			— Wakeup packet support
	Integrated descriptor based scatter-gather DMA and
„			— Integrated 10/100 Ethernet PHY
	IRQ deassertion timer effectively increase network		–	Auto-negotiation
	throughput and reduce CPU loading		– Automatic polarity detection and correction
„	Integrated Ethernet MAC with full-duplex support		– Supports HP Auto-MDIX
			– Supports energy-detect power down
„	Integrated 10/100 Ethernet PHY with HP Auto-MDIX
			— Support for 3 status LEDs
	support
			— Receive and transmit TCP checksum offload
„	32-bit, 33MHz, PCI 3.0 compliant interface	„	PCI Interface
„	Reduced power operating modes with PCI Power		— PCI Local Bus Specification Revision 3.0 compliant
	Management Specification 1.1 compliance		— 32-bit/33-MHz PCI bus
„	Supports multiple audio & video streams over		— Descriptor based scatter-gather DMA enables zero-
			copy drivers
	Ethernet
		„	Comprehensive Power Management Features

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

—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

SMSC LAN9420/LAN9420i DATASHEET

Revision 1.22 (09-25-08)