LAN9220
16-bit Non-PCI Small Form Factor
10/100 Ethernet Controller with
Variable Voltage I/O & HP Auto-MDIX
Support
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
Single chip Ethernet controller
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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
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
Datasheet
Flexible address filtering modes
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
Integrated 10/100 Ethernet PHY
— Supports HP Auto-MDIX
— Auto-negotiation
— Supports energy-detect power down
Key Benefits
Non-PCI Ethernet controller for standard performance
applications
— 16-bit interface
— Burst-mode read support
Host bus interface
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Simple, SRAM-like interface
16-bit data bus
16Kbyte FIFO with flexible TX/RX allocation
One configurable host interrupt
Minimizes dropped packets
— Internal buffer memory can store over 200 packets
— Automatic PAUSE and back-pressure flow control
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
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
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Numerous power management modes
Wake on LAN
Magic packet wakeup
Wakeup indicator event signal
Link Status Change
Single 3.3V Power Supply with Variable Voltage I/O
0°C to +70°C Commercial Temperature Support
SMSC LAN9220
DATASHEET
Revision 2.6 (12-04-08)
SMSC [ SMSC CORPORATION ]
