LAN9420I-NU

The LAN9420/LAN9420i Fast Ethernet controller is a versatile solution for integrating high-speed Ethernet into a PCI-based system. With its PCI Local Bus Specification Revision 3.0 compliant interface, DMA Controller, Ethernet MAC, and 10/100 Ethernet PHY, this controller offers a comprehensive feature set for seamless integration and optimal performance. Its support for IEEE 802.3 compliance, full/half-duplex 10BASE-T and 100BASE-TX modes, and manual full-duplex flow control ensures reliable and efficient network connectivity

Key Features

• 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
• 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
• Fully compliant with IEEE 802.3/802.3u
• 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
• 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
• 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 Local Bus Specification Revision 3.0 compliant
• 32-bit/33-MHz PCI bus
• Descriptor based scatter-gather DMA enables zero-copy drivers
• 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
• 3 programmable GPIO pins
• 2 GPO pins
• Serial interface provided for EEPROM
• Used to store PCI and MAC address configuration values
• Big/Little/Mixed endian support for registers, descriptors, and buffers
• IRQ deassertion timer
• General purpose timer
• Integrated 1.8V regulator
• Available in 128-pin VTQFP RoHS Compliant package
• Available in commercial & industrial temperature ranges