OS81082 inic50 ephy www.smsc-ais.com features ? complete most ? network interface on a single chip ? fully encapsulated ? optimized for a 50 mbps electrical physical interface (utp) ? embedded most ne twork management ? network protected mode ? hardware & application watchdog timer ? intelligent muting ? media local bus (medialb ? ) serial port ? supports all most data types: - synchronous data streaming - 1 kbyte packet data support - fifo-based control data support ? eases inter-chip communi cation and streaming ? pcm streaming ports alternativ ely usable as i2s streaming port ? i2c control port ? dedicated application reset output ? operating voltages 3.3/2.5 v (3.3 v to 2.5 v regulation with one external pass transistor) ? 64-pin package ? temperature range -40 c +95 c description the OS81082 inic is a highly integrated intelligent network interface controller (inic) for the 50 mbit/s most network (most50). the integrated electric al physical layer (ephy) signal conditioning circuitry offers differen tial i/o that directly interfaces to a passive ephy transformer. th is enables most data transmis- sion via unshielded twisted pair (utp) cable. the inic provides full encapsulation of all functions necessary to develop a most compliant device. it allows an easy implementa- tion of most into a device. the inic also provides supervis ion of the application, and a protected mode is entered during malfunction or absence of an application (i.e., start-up). this protected mode prevents applica- tion malfunctions from influenc ing the integrity of the network and the system. the inic includes the most nets ervices stacks minikernel, thus providing most complia nt real time behavior. this significantly relieves the external host co ntroller (ehc) from realtime processing tasks. d ordering information the OS81082 inic50 ephy is available as: OS81082 inic engineering sample OS81082 inic tape & reel order no. b10178 order no. b10179 intelligent network interface controller for most www..net
OS81082 inic50 ephy copyright ? 2004 - 2007 smsc or its subs idiaries. all rights reserved. although the information in this document has been checked and is believed to be accura te, no responsibility is assumed for ina ccuracies. smsc reserves the right to make changes to product descriptions and specifications at any time without notice. cont act your local smsc sales office to obtain the latest product d escriptions, specifications and applicable standard terms of sale before placing your product order. the provision of this information does not convey any licenses under any patent rights or other int ellectual property rights of smsc or others. all sales are expressly conditional on your agreement to the terms and conditions of the most recently da ted version of smsc's applicable standard term s of sale dated before the date of your order. products may contain design defects or errors known as anomalie s, which may cause the product to deviate fr om published product descriptions or spec ifications. anomalies are described in errata sheets, which are available upon request. smsc products are not designed, intended, authorized or warr anted for use in any life support or other application where product failure cou ld cause or contribute to personal injury or severe property damage. any and all such uses without prior written approval of an officer of smsc will be fully at y our own risk. smsc literature may be obtained by visiting smsc's website at http://www.smsc.com. medi alb, smsc and most are registered trademarks of standard microsystems corporation ("smsc") or its s ubsidiaries. other names ment ioned may be trademarks of their respective ho lders. (11/2006) smsc europe gmbh smsc smsc japan kk smsc sweden ab bannwaldallee 48 1120 south capital of tx hwy. osaki new city building #4 amerikahuset d-76185 karlsruhe building 2, suite 100 1-6- 4 osaki, shinagawa-ku barlastgatan 2 germany austin, texas 78746, usa tokyo, 141-0032, japan s-414 63 g?teborg, sweden phone: +49 721 62537-0 phone: +1 512 306-8450 ph one: +81 3 5487-0502 phone: +46 31 70460-30 fax: +49 721 62537-119 fax: +1 512 306-8442 fax: +81 3 5487-0490 fax: +46 31 70460-31 email: ais@smsc.com email: ais@smsc.com email: japan-ais@smsc.com email: sweden-ais@smsc.com 08/2007 pfl_OS81082_v01_00_xx-4.fm weee-reg.-no. de55114090 inic api (port message protocol) most network inic message interface iocks on chip fb most netservices minikernel inic control message service (cms) asynchronous data service (ads) inic segmen- tation service (iss) minimum netblock (nbmin) most supervisor (msv) most processor control service (mcs) socket connection manager (scm) icm fifos mcm fifos mdp fifos rx tx rx tx rx tx port message service (pms) message interface service (mis) wrapper modules message buffer management (mbm) low-level driver (e.g. i2c, medialb) basic layer api (layer l) application socket api (layer ll) application socket api (layer ll) most high api most high protocol most high protocol service (mhp) netblock (nb) iock enhanced fb testability (et) network-master shadow (nmws) most supervisor layer ii (msv2) address handler & decentralized dev. reg. (ah) notification service (ntfs) most command interpreter (cmd) most netservices layer ii most netservices api (layer i, layer ii, and most high) ehc inic the inic makes a most device accessible according to the rules of the most specification, even without an application running on an ehc. the OS81082 inic provides a message-based interface with the same physical interface and api as the os81050 inic. it is encapsulated by a function block (fblock inic). this allows the ehc to control the inic in the same way as othe r functions in the system. software in the inics architecture ti me-critical, resource-inten- sive and fail-safe relevant parts of the network function- ality are handled by the on-chip most netservices. this includes significant properties of the mandatory function block (fblock) netblock. a most device based on inic is able to answer requests to the netblock, even if the application is not running or not yet started on an ehc, thus providing maximum robust- ness for the network client. th e figure on the right shows the software architecture for the inic. it consists of an on-chip stack and the most netservices api v2 that run on the ehc. most netservices api v2 migration the following software services are integrated on-chip as parts of the most netservices minikernel: ? most supervisor (msv) ? most processor control service (mcs) ? socket connection manager (scm) ? control message service (cms) ? asynchronous data service (ads) ? minimum netblock (nbmin) ? inic segmentation service (iss) wrapper modules within the most netservices api v2 restore the basic layer (lay er i) of the former most netservices api v1 on the external host controller. the inic interfaces to external hardware using i2c and pcm streaming ports. addition ally, it provid es the inter- face medialb. medialb supports high-speed communi- cation for all most data types. software architecture www..net
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