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OS85656 Streaming
w w w . s m s c - a i s . c o m
OS85656 Streaming I/O Companion
Ordering Information
The Streaming I/O Companion isavailable as:
OS85656 Engineering SampleOS85656 Tape & Reel
Sync
hron
ous
Isoc
hron
ous
Asyn
chro
nous
Cont
rol
Media LB X X X X
I2S X X - -
I2C - - X X
SPI - - X -
TSI - X - -
Supported Data Types
Supp
orte
d I/O
Por
ts
Expand Your Audio and Video Streaming Capabilities
Features
Low-cost and low pin-count MediaLB-I/O port expander offering:An optimized set of interfaces for streaming applicationsA high-speed, multimedia routing engine
Supports all MOST® speed gradesSMSC TrueAuto™ automotive quality process
Specifically designed, fabricated, tested, characterized and qualified for automotive applicationsService and support
Multimedia routing engineOptimized for high-throughput (1.5 Gbits/s)Connects up to 64 streaming or packet channels simultaneously between I/O ports
MediaLB® 3-Pin port Data rates up to 1024FsEasy inter-chip connection between I/O Companion and INIC for processing all MOST data types
Serial Peripheral Interface (SPI)High-speed interface with 25 Mbits/sSupports MDP, MEP and QoS packets
Multi-channel streaming port (I2S™):Supports streaming legacy audio formatsOffers sequential alignment mode with a max. data rate of 512Fs, sufficient for 7.1 channel audio via one line
Transport Stream Interface (TSI)Serial interface for video transport streams (max. data rate of 50 Mbits/s)Support of A/V Packetized Isochronous Streaming data
Control port (I2C™)Configurable via:
Internal OTP memoryControl messages transmitted by external controller during runtime
Operating voltages 1.8 V/3.3 V 48-pin QFN (7 x 7 mm) lead-free, RoHS-compliant packageTemperature range: -40 °C to +105 °C
Applications
The I/O Companion serves as a generic streaming I/O port expanderfor various audio and video applications including:
Head unitsRear Seat Entertainment (RSE)AmplifiersTV and radio tunersVideo displays
Hardware Block Diagram
OS85656 Streaming I/O Companion
SMSC Europe GmbH SMSC Austin SMSC Japan KK SMSC Sweden ABBannwaldallee 48 10900-B Stonelake Boulevard Gotenyama Trust Tower Amerikahuset76185 Karlsruhe Austin, Texas 78759 4-7-35 Kita-shinagawa, Shinagawa-ku Barlastgatan 2Germany USA Tokyo 140-0001 Japan 414 63 Göteborg, SwedenPhone: +49 721 62537-0 Phone: +1 512 502-0070 Phone: +81 3 6847 9300 Phone: +46 317 046-030Fax: +49 721 62537-119 Fax: +1 512 502-0648 Fax: +81 3 6847 9301 Fax: +46 317 046-031Email: [email protected] Email: [email protected] Email: [email protected] Email: [email protected]
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85656_V
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Copyright © 2011 SMSC or its subsidiaries. All rights reserved. Although the information in this document has been checked and is believed to be accurate,no responsibility is assumed for inaccuracies. SMSC reserves the right to make changes toproduct descriptions and specifications at any time without notice. Contact your local SMSCsales office to obtain the latest product descriptions and specifications before placing yourproduct order. The provision of this information does not convey any licenses under any patentrights or other intellectual property rights of SMSC or others. All sales are expressly conditionalon your agreement to the terms and conditions of the most recently dated version of SMSC'sstandard Terms of Sale Agreement dated before the date of your order. Products may containdesign defects or errors which may cause a product's functions to deviate from publishedproduct descriptions or specifications. Errata, listing these design defects or errors are available
upon request. SMSC products are not designed, intended, authorized or warranted for use in anylife support or other application where product failure could cause or contribute to personalinjury or severe property damage. Any and all such uses without prior written approval of anOfficer 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, maybe obtained by visiting SMSC's website at http://www.smsc.com. SMSC, the SMSC logo, theTrueAuto logo, MOST and MediaLB are registered trademarks of Standard MicrosystemsCorporation ("SMSC"). Other names mentioned may be trademarks of their respective holders.All claims made herein speak as of the date of this material. The company does not undertaketo update such statements. (02/11)
WEEE-Reg.-No. DE55114090
Case Studies
Audio/Video Source (Digital Radio Tuner and DTV)Typically, the latest digital radio tuner and DTV ICs arehighly-integrated SoCs used to stream audio and video datacombined either in one MPEG2/4 stream or as separatedsynchronous audio (stereo or multi-channel) and isochronousMPEG video streams.
Synchronous audio is transferred via the I2S interface, whilethe MPEG signals are transferred using the TSI (standard formost DTV controllers). Additional information such aschannel lists or teletext are transferred using the SPI inter-face. All of these different data types are transferred viaMediaLB to the INIC.
Video Display/HMIAn MPEG2/4 stream containing both audio and video istransferred as one stream over the TSI port to an MPEGdecoder (e.g., in the RSE module) where the signal is sepa-rated into audio and video components. The resulting digitalaudio signal can then be directed to headphones or trans-mitted back to the network (via I2S) to be processed by otheraudio devices, such as an audio amplifier.
MOST packet data, such as a navigation map or HMI menuscan be transmitted using the SPI interface. All signalsbetween the OS85656 and the INIC are exchanged via theMediaLB interface.
Description
The OS85656 is a streaming Input/Output Companion ICthat provides MediaLB port expansion. It allows a widevariety of I/O types to be conveniently interfaced to a MOSTnetwork. All MOST data types are supported (control, asyn-chronous, synchronous and isochronous). A powerful routingengine allows simultaneous routing of data between theMediaLB 3-Pin interface and the various serial I/O portsavailable on the chip including:
Serial Audio I/O (I2S and sequential (TDM) modes)Serial TSISPII2C
The high-performance routing engine operates at an internalspeed of up to 1.5 Gbits/s. It is able to simultaneously routea variety of data types between applications hardwarelocated on the PCB or between those applications and theMOST network. For example, a combination of TCP/IP datapackets, MPEG transport stream packets and multiple audiochannels required for 7.1 surround sound applications canbe routed between ports.
The I/O Companion can interface with any of SMSC's Intelli-gent Network Interface Controller (INIC) devices via theMediaLB 3-Pin interface.
TrueAuto
TrueAuto is SMSC's automotive quality process. It has provenits ability to deliver leading-edge quality and services for ICdevice products to fulfill the needs of the most demandingautomotive customers. TrueAuto is a proven total automo-tive-grade quality approach. TrueAuto IC device robustnessbegins with SMSC's design for reliability techniques withinthe silicon IC itself: automotive-grade robustness and test-ability are designed into the IC. Once available in silicon, theIC is fully-characterized and qualified over a multitude ofoperating parameters to prove quality under the harshestconditions. In this, SMSC's TrueAuto approach significantlyexceeds the usual automotive reliability standards andcustomer-specific requirements and goes far beyond thestress tests prescribed by the AEC-Q100 specifications.During the fabrication of TrueAuto products, extensive tech-nologies and processes, such as enhanced monitors are usedin order to continuously drive improvements in accordancewith SMSC's zero Defects per Million (DPM) goals.