www.oasis.com oasis siliconsystems ag bannwaldallee 48 d-76185 karlsruhe germany tel: +49 (0) 7 21 6 25 37 - 0 fax: +49 (0) 7 21 6 25 37 - 1 19 e-mail: oss@oasis.de oasis siliconsystems, inc. 1120 south capital of tx hwy. building 2, suite 100 austin, texas 78746, usa tel: +1 (512) 306 8450 fax: +1 (512) 306 8442 e-mail: oss@oasis.com oasis siliconsystems, inc. 38600 van dyke avenue suite 220, sterling heights, michigan 48312-1172, usa tel: +1 (586) 7 95 05 45 fax: +1 (586) 7 95 89 50 e-mail: detroit@oasis.com oasis siliconsystems kk shin-yokohama uu bld. 5f 2-5-2 shin-yokohama, kohoku-ku yokohama, 222-0033, japan tel: +81-45-470-2240 fax: +81-45-470-2242 e-mail: japan@oasis.com most network interface controller OS8104 multimedia network protocol chip features low cost multimedia network solution z 24,5 mb/sec most network interface chip z programmable bandwidth for up to 11 mbps packet data, or up to 60 channels of stream data z over 2900 control messages per second on-chip network management z automatic stream data allocation z network activity and data valid detection z node position and delay sensing, alive check and power management flexible consumer electronics interface z parallel, i 2 c and spi control interface z i 2 s and various other serial stream i/o description the OS8104 is a highly integrated c-mos net- work interface controller with full featured inter- face to the 24.5 mbit/sec most optical network system. all relevant network management including source data allocation, physical layer interface, synchronization and network detection is on chip. its ultra low jitter pll guarantees high qual- ity audio and video transmission and clock re- covery over a wide frequency range. coding is optimized for plastic optical fiber. the OS8104 works at ultralow bit error rate and supports real-time synchronous networking at ultra low cost and high data rate compromising up to 15 stereo cd channels at the same time. in addition to the control channel some of the available bandwidth can be allocated to asyn- chronous packet data transfer. rx sx0 - d0 sx1 - d7 sx2 - d1 sx3 - d2 sr0 - d3 sr1 - d6 sr2 - d4 sr3 - d5 fsy sck - src_fl tx sda - sdout ad0 - sdin ad1 - /cs scl /int /rs async par_src par_cp xto cp_flow pad0 pad1 /aint /rd /wr /wake_up status r_timer vref flt error rmck xti 10 36 42 source net in 22 23 wake up unit 9 blocks/pins v1.0-29_980320 programmable serial and parallel real-time data interfaces with different clock and data modes support various consumer electronic devices such as codecs, converters and dsps. z s/p dif - iec 958 digital interface, fifo buffered parallel stream data interface www..net
most network interface controller OS8104 multimedia network protocol chip functional description the chip contains a most core and several peripherals including a clock manager, source data ports, and an i 2 c/spi control port. the network interface includes an ultra low jitter phase lock loop (pll) and a channel demodulator on the input side. the network output provides a channel coded sig- nal. those signals can be connected directly to an optical receiving/ transmitting device (fot unit) or a balanced line driver. each device is able to generate the network clock or to synchronize to it. however, there can be only one device generating the clock and the frame structure within the entire network. all kind of a/d converter, d/a converter, digital signal pro- cessing and media player (cd-audio/ video/ rom etc.) devices can be synchronized using one of the different clock and serial interface modes. the source data ports sr0-3 and sx0-3 provide a data interface to the serial bitstream. data sources and sinks can be connected to the source ports to provide data to another node on the network, or receive data from an- other node on the network. up to 4 inputs are usable as real time data input channels and up to 4 outputs as real time data output channels. the most network interface controller can operate in a real peer to peer network or in a host centric architec- ture. all trademarks used in this document are propriet ary of their respective owners pfl_OS8104-03.pmd 12/02 most and optolyzer are registered trademarks of oasis siliconsystems ? 1998-2002 oasis siliconsystems, all rights reserved most network implementation an example implementation including audio/video, telephone and computing applications is shown above. up to 64 devices with as many as 15 mpeg 1 audio/video channels can be implemented on one fiber without a central host. www..net
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