smsc lan9420/lan9420i revision 1.4 (12-17-08) product preview data brief product features lan9420/lan9420i single-chip ethernet controller with hp auto-mdix support and pci interface highlights ? optimized for embedded appl ications with 32-bit risc cpus ? integrated descriptor based scatter-gather dma and irq deassertion timer effect ively increase network throughput and reduce cpu loading ? integrated ethernet mac with full-duplex support ? integrated 10/100 etherne t 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 au tomation systems ? industrial/single board pc ? kiosk/pos enterprise equipment key benefits ? integrated high-perfor mance 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
order numbers: LAN9420-NU for 128-pin, vtqfp lead-free, rohs co mpliant package (0 to 70 o c) lan9420i-nu for 128-pin, vtqfp lead- free, rohs compliant package (-40 o to 85 o c) 80 arkay drive, hauppauge, ny 11788 (631) 435-6000, fax (631) 273-3123 copyright ? 2008 smsc or its subsidiaries. all rights reserved. circuit diagrams and other information relati ng to smsc products are included as a means of illustrating typical applications. consequently, complete information sufficient for construction purposes is not necessarily given. although the information has been checked and is believed to be accurate, no re sponsibility is assumed for inaccuracies. smsc reserves the right to make changes to specifications and product descriptions at any time without notice. contact your local sm sc sales office to obtain the latest specifications before placing your product order. the provision of this information does not convey to the purchaser of the described semicond uctor devices any licenses under any patent rights or other intellectual property rights of smsc or others. all sales are expressly conditional on your agreement to the te rms and conditions of the most recently dated version of smsc's standard terms of sale agreement dated before the date of your order (the "terms of sale agreement"). the pro duct may contain design defects or errors known as anomalies which may cause the product's functions to deviate from published specifications. anomaly sheets are availab le upon request. smsc products are not designed, intended, authorized or warranted for use in any life support or other application where product failure could cause or contribute to personal injury or severe property damage. any and all such uses without prior written approval of an officer of smsc and further testing and/or modification will be fully at the risk of the customer. copies of this document or other smsc literature, as well as the terms of sale agreement, may be obtained by visiting smsc?s website at h ttp://www.smsc.com. smsc is a registered trademark of standard microsystems corporation (?smsc?). produc t names and company names are th e trademarks of their respective holders. smsc disclaims and excludes any and all warranties, including without limitation an y and all implied warranties of merchantabil ity, fitness for a particular purpose, title, and against infringement and the like, and any and all warranties arising from any cou rse of dealing or usage of trade. in no event shall smsc be liabl e for any direct, incidental, indi rect, special, punitive, or cons equential damages; or for lost data, profits, savings or revenues of any kind; regardless of the form of action, whether based on contrac t; tort; negligence of smsc or others; strict liability; breach of warranty; or otherwise; whether or not any remedy of buyer is h eld to have failed of its essential purpose, and whether or no t smsc has been advised of the possibility of such damages. single-chip ethernet controller with hp auto-mdix support and pci interface revision 1.4 (12-17-08) 2 smsc lan9420/lan9420i product preview
single-chip ethernet controller with hp auto-mdix support and pci interface smsc lan9420/lan9420i 3 revision 1.4 (12-17-08) product preview general description lan9420/lan9420i is a full-featur ed, fast ethernet controller whic h allows for the easy and cost- effective integration of fast ethernet into a pci-based system. a system configuration diagram of lan9420/lan9420i in a typical embedded environment can be seen in figure 1 on page 4 , followed by an internal block diagram of lan9420/lan9420i in figure 2 on page 4 . lan9420/lan9420i consists of a pci local bus specificat ion revision 3.0 compliant interface , dma controller, ethernet mac, and 10/100 ethernet phy. lan9420/lan9420i provides full ieee 802.3 complia nce and all internal components support full/half- duplex 10base-t, 100base-tx, and man ual full-duplex flow control. the descriptor based scatter- gather dma supports usage of zero-copy drivers, effectively increasing throughput while decreasing host load. the integrated irq deassertion timer allows a minimum irq deassertion time to be set, providing reduced host load and greater contro l over service routines. automatic 32-bit crc generation/checking, automatic payload padding, and 2k jumbo packets (2048 byte) are supported. big, little, and mixed endian support provides independe nt control over register, descriptor, and buffer endianess. this feature enables easy integration into various arm/mips/powerpc designs. lan9420/lan9420i supports the pci bus power mana gement interface specification revision 1.1 and provides the optional ability to generate wake events in the d3cold state when vaux is available. wake on lan, wake on link status c hange (energy detect), and magic packet wakeup detection are also supported, allowing for a range of power management options. lan9420/lan9420i contains an eeprom controller for connection to an optional eeprom. this allows for the automatic loading of static configur ation data upon power-up or reset. when connected, the eeprom can be configured to load a predete rmined mac address, the pci ssid, and the pci ssvid of lan9420/lan9420i. in addition to the primary functionality desc ribed above, lan9420/lan9420i provides additional features designed for extended functionality. these include a multipurpose 16-bit configurable general purpose timer (gpt), a free-run counter, a 3-pin configurable gpio/led interface, and 2 gpo pins. all aspects of lan9420/lan9420i are managed vi a a set of memory mapped control and status registers. lan9420/lan9420i?s performance and f eatures make it an ideal solution for many applications in the consumer electronics, enterprise, and industrial auto mation markets. targeted applications include: set top boxes (cable, satellite and ip), digital television s, digital video recorders, home gateways, digital media clients/servers, industrial automation sy stems, industrial single board pcs, and kiosk/pos enterprise equipment.
single-chip ethernet controller with hp auto-mdix support and pci interface revision 1.4 (12-17-08) 4 smsc lan9420/lan9420i product preview block diagrams figure 1 lan9420/lan9420i s ystem level block diagram figure 2 lan9420/lan9420i internal block diagram external 25mhz crystal gpios/leds (optional) eeprom (optional) lan9420/lan9420i pci host pci device pci device magnetics to ethernet pci bus external 25mhz crystal gpios/leds (optional) eeprom (optional) lan9420/lan9420i pci host pci device pci device magnetics to ethernet pci bus
single-chip ethernet controller with hp auto-mdix support and pci interface smsc lan9420/lan9420i 5 revision 1.4 (12-17-08) product preview package outline 128-vtqfp package figure 3 lan9420/lan9420i 128-vtqfp package definition
single-chip ethernet controller with hp auto-mdix support and pci interface revision 1.4 (12-17-08) 6 smsc lan9420/lan9420i product preview notes: 1. all dimensions are in mill imeters unless otherwise noted. 2. dimensions b & c apply to the flat section of the l ead foot between 0.10 and 0.25mm from the lead tip. the base metal is exposed at the lead tip. 3. dimensions d1 and e1 do not include mold protrusi ons. maximum allowed protrusion is 0.25mm per side. d1 and e1 are maximum plastic body size dimensions including mold mismatch. 4. the pin 1 identifier may vary, but is always located within the zone indicated. table 1 lan9420/lan9420i 128-vtqfp dimensions min nominal max remarks a - - 1.20 overall package height a1 0.05 - 0.15 standoff a2 0.95 1.00 1.05 body thickness d/e 15.80 16.00 16.20 x/y span d1/e1 13.80 14.00 14.20 x/y plastic body size l 0.45 0.60 0.75 lead foot length b 0.13 0.18 0.23 lead width c 0.09 - 0.20 lead foot thickness e 0.40 bsc lead pitch ddd 0.00 - 0.07 true position spread ccc - - 0.08 coplanarity figure 4 lan9420/lan9420i 128-vtqfp recommended pcb land pattern
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