cl-md56xx preliminary product bulletin a june 1997 features n complete pc telephony solution ? controller-based, robust platform ? exceeds microsoft a pc 95 requirements ? full-duplex, echo-cancelled digital speakerphone ? itu (international communications union) v.80 videoconferencing ? itu-v.70 dsvd (digital simultaneous voice and data) upgrade option ? international telephony support n data modulation ? us robotics a 2 ? technology ? itu-v.34 (33,600 to 2400 bps) symmetric and asymmetric operation ? itu-v.32 bis, v.23, v.22 bis, v.21 ? bell a 212a and 103 n fax modulation ? itu-t v.17, v.29 to 14,400 bps n voice coder ? voice compression: adpcm, linear, and cl1 ? 4800, 7200, 8000, 9600, and 11025 samples per second n data link layer protocols ? error correction: itu-v.42 and mnp a 2e4 ? data compression: itu-v.42 bis and mnp a 5 n dte integrated interface alternatives ? serial rs-232/v.24 interface overview the cl-md56xx chipset family is a software- upgradable 56k solution with a complete set of industry- standard voice, data, and fax features. the us robotics a 2 ? technology provides effective data receive rates of up to 53.33 kbps and ensures interoperability with major internet service providers around the world. chipset features include simultaneous voice and data operation, itu-v.80 videoconferencing, and full-duplex speakerphone. integrated, open architecture the cl-md56xx is based on the fastpath platform, which comprises an open-architecture arm (advanced risc machines) controller and a proprietary high-mips dsp (digital signal processor). each component is high- ly integrated using cirrus logic?s state-of-the-art pro- cess technology. the result is a platform with low power requirements and high performance. the fastpath plat- (cont. next page) system block diagram cl-md56xx m p nvram daa tip ring sram flash rom / eprom / ram host computer bus microphone / speaker (optional) + dsp cl-md44xxc ram cl-md56xxd cl-md56xxdt or safe cl-md1724 CL-MD1724T or safe cl-md1724 or (optional) CL-MD1724T (cont. next page) v.34 fastpath ? 56k data/fax/voice chipset family
cl-md56xx 56k data/fax/voice chipsets ? isa bus direct or plug and play ? pc card bus interface n voice telephony ? full-duplex, echo-cancelled digital speakerphone ? telephone emulation for headset applications ? radish a voiceview ? upgrade option ? microsoft a windows a tapi-compliant ? itu-v.70 dsvd upgrade option n controller functionality ? industry-standard at command-driven ? class 1 fax ? is-101 voice commands n minimal-component design ? direct connection to isa bus ? single crystal ? passive hybrid n low power requirements ? single +5-v power source; 3.3-v dsp option ? automatic sleep and wake-up modes n small package options ? controller and dsp: 128-pin sqfp or vqfp packages form?s scalability allows the graceful addition of comput- er telephony features such as dsvd, speakerphone, and telephone emulation. the fastpath platform is equally suitable for both mobile and desktop solutions due to its integrated pc card (pcmcia), plug-and-play, and serial interfaces. additionally, the cl-md56xx ex- ceeds microsoft a pc 95 specitcations for windows a and legacy applications. satistes legacy applications the cl-md56xx supports all requirements for pc- based communications, whether for internal, standal- one, or pc card applications. with its robust controller and powerful dsp, the cl-md56xx supports even the most demanding ms-dos a gaming applications. the cl-md56xx supports all industry-standard at com- mands for data, is-101 voice, and class 1 fax. versatile 56k platform the cl-md56xx offers data receive speeds at up to 56 kbps using us robotics 2 technology. current re- strictions by the federal communications commission limit actual data receive speeds to 53.33 kbps. prod- ucts can be designed for complete software upgradabil- ity or rom chip upgrades. the cl-md56xx is expected to support any eventual itu 56-kbps standard. comprehensive telephony features voice telephony is becoming increasingly important in modem-based products. the cl-md56xx has a com- plete telephony interface (including caller id and voice mail) and answering machine capabilities (including call progress detection and tone generation). for more advanced voice features, the cl-md56xx adds telephone emulation for headset applications and is upgradable with radish a voiceview ? for alternate transfers of voice and data over the same connection. the dsvd upgrade option enables data transfer in realtime during a voice conversation, an essential for whiteboard applications and sophisticated customer support. additionally, the full-duplex, echo-cancelled digital speakerphone offers the latest technology for hands-free computer telephony. the speakerphone op- erates in all modes, including dsvd. all voice features are fully compliant with microsoft unimodem v and tapi standards, and all voice commands comply with is-101 voice command standards. international telephony support the cl-md56xx chipsets support international appli- cations for pc card, isa, and serial bus designs, and cirrus logic also provides international daa (data ac- cess arrangement) design recommendations. cirrus logic?s contguration utility enables easy cus- tomization of trmware for international requirements. platform of the future the cl-md56xx is a solid base for future innovation. the unique caching architecture in the controller?s em- bedded risc processor enables the use of lower-cost memory chips. the controller code can be modited in a c-language development environment, and the ?ash memory interface permits teld software upgrades. the dsp delivers the bandwidth to handle multiple tasks simultaneously and to support specialized func- tions. many advanced features are already built-in, in- cluding a dsvd vocoder and a full-duplex, echo- cancelled speakerphone. concurrent operation is en- abled for even the most advanced features, such as speakerphone operation in dsvd mode. features (cont.) overview (cont.)
product configuration options the standard features of each chipset are listed in the following table. feature set parallel/serial host interface pc card host interface program memory options buffer memory (sram) dsp memory data/fax/voice cl-md5650 cl-md5651t two 256k 8; 70 ns 32k 8; 25 ns two 32k 8; 12 ns data/fax/voice with speakerphone cl-md5652 cl-md5653t data/fax/voice with itu-v.70 dsvd upgrade option and speakerphone cl-md5662t cl-md5663t reference designs available cirrus logic provides reference designs for use and moditcation by customers. these designs demonstrate chipset applications for several common configurations. the design documentation includes schematics, bills of materials, fabrication drawings, and ms-dose or win- dows a -based orcad a tles. simple software upgrades end users can easily download and install upgrades of 56k software from manufacturer-supported internet sites. the use of ?ash memory permits these teld up- grades. additional program memory is required to sup- port the 32 kbytes of ram needed for 56k operation and a full feature set. complete telephony interface design a proprietary telephone interface design is included in each reference design provided to all cirrus logic cus- tomers. the telephony interface supports caller id and 19 modes related to voice features. seven of these modes provide basic voice features and three modes support dsvd operation. minimal-component design besides the sram and ?ash or rom components listed above, only a single crystal and 2 kbytes of nvram (non-volatile ram) are required to complete the de- signs. no additional components are needed to add isa bus interface, plug-and-play, speakerphone, or dsvd features. the i/o interface circuit does require relay sup- port for caller id and telephony features. reduced emi/rfi emissions a single crystal serves as a clock for both the controller and dsp in the cl-md56xx chipsets. besides reducing cost, the single-crystal design minimizes high-frequen- cy harmonics and simplites emi/rfi design consider- ations. complete design guidelines
cl-md56xx 56k data/fax/voice chipsets design kits and supporting documentation the following table details the contents of reference design kits and documentation. note: for information on availability, please contact your local cirrus logic representative. kit / document contents 56k isa half card kit mdk56spd-2ixx includes international daa interface and an audio/voice hardware interface l isa half card l cl-mdk56xx-xx applications book l commercial software l modem utilities disk (including .inf tle and drivers) 56k isa combo card kit mdk56a37-1cxx based on crystal?s cs4236 audio solution l isa combo card l cl-mdk56xx-xx applications book l audio and communication drivers l commercial software l modem utilities disk (including .inf tle and drivers) 56k pc card (pcmcia) kit mdk56-0pxx includes caller id and all voice features, including dsvd on a headset interface l pc card l interface cable l cl-mdk56xx-xx applications book l commercial software l modem utilities disk (including .inf tle and drivers) 56k serial box modem kit mdk56spd-5sxx includes caller id and all voice features, including dsvd l serial pc card l cl-mdk56xx-xx applications book l commercial software l modem utilities disk (including .inf tle and drivers) cl-mdk56xx-xx applications book l cl-mdk56xx data book l cl-md56xx programmer's guide l support documentation: ? demonstration board design considerations application alert ? cl-mdk56spd-2i01 half card 56k hardware application note ? cl-mdk56a37-1c01 isa 56k combo card hardware application note ? cl-mdk56-op01 pc card 56k hardware application note ? cl-mdk56spd-5sxx serial box 56k modem hardware application note ? use of microphones with v.34 fastpath ? chipsets ? modem pcb layout guidelines ? windows a 95 .inf file user?s guide ? 56k upgrading instructions ? installation instructions for the international configuration utility ? class 1 fax application note ? is-101 voice application note
cl-md56xx 56k data/fax/voice chipsets ordering information chipset composition the following table gives a brief description of each chipset and a list of its parts. part identitcation market parallel/serial host interface pc card host interface data/fax/ voice data/fax/ voice, full-duplex speaker- phone data/fax/ voice, full-duplex speaker- phone, dsvd cl-md5650 m p safe cl-md4450c cl-md1724 dsp cl-md5650d cl-md5651t m p safe cl-md4451c CL-MD1724T dsp cl-md5651dt cl-md5652 m p safe cl-md4450c cl-md1724 dsp cl-md5650d safe cl-md1724 cl-md5653t m p safe cl-md4451c CL-MD1724T dsp cl-md5651dt safe CL-MD1724T cl-md5662t m p safe cl-md4450c CL-MD1724T dsp cl-md5660dt safe CL-MD1724T cl-md5663t m p safe cl-md4451c CL-MD1724T dsp cl-md5660dt safe CL-MD1724T package type: s = sqfp (shrink quad ?at pack) v = vqfp (very-tight-pitch quad ?at pack) cl e mdxxxxxx e sc e a cirrus logic inc. modem, data communications device number: temperature range: c = commercial device revision level md5650d md5651dt md5660dt
cirrus logic inc. publications ordering: 800/359-6414 (usa) or 510/249-4200 3100 west warren ave., fremont, ca 94538 world wide web: http://www.cirrus.com tel: 510/623-8300 fax: 510/252-6020 555699-002 cl-md56xx preliminary product bulletin direct sales oftces the company headquartered in fremont, california, cirrus logic is a leading manufacturer of advanced integrated circuits for desktop and portable computing, telecommunications, and consumer electronics. the company applies its system- level expertise in analog and digital design to innovate highly integrated, software-rich solutions. cirrus logic has developed a broad portfolio of products and technologies for applications spanning multimedia, graphics, communications, system logic, mass storage, and data acquisition. the cirrus logic formula combines innovative architectures in silicon with system design expertise. we deliver complete solutions ? chips, software, evaluation boards, and manufacturing kits ? on-time, to help you win in the marketplace. cirrus logic?s manufacturing strategy ensures maximum product quality, availability, and value for our customers. talk to our systems and applications specialists; see how you can benett from a new kind of semiconductor company. copyright ? 1997 cirrus logic inc. all rights reserved. preliminary product information describes products that are in production, but for which full characterization data is not yet available. cirrus logic inc. has made best efforts to ensure that the information contained in this document is accurate and reliable. however, the information is subject to change without notice. no responsibility is assumed by cirrus logic inc. for the use of this information, nor for infringements of patents or other rights of third parties. this document implies no license under patents, copyrights, or trade secrets. cirrus logic, accupak, clear3d, directvpm, diva, fastp ath, fastext, featurechips, filterjet, get into it, good data, laguna, laguna3d, mediadac, motionvideo, rsa, simulscan, s/la, smash, softarge t, systems in silicon, texturejet, tvtap, uxart, video port manager, visualmedia, vpm, v-port, voyager, waveport, and webset are trademarks o f cirrus logic inc., which may be registered in some jurisdictions. other trademarks in this document belong to their respective companies. crus and cirrus logic international, ltd. are trade names of cirrus logic inc. domestic n. california fremont tel: 510/623-8300 fax: 510/252-6020 s. california westlake village tel: 805/371-5860 fax: 805/371-5861 northwestern area portland, or tel: 503/620-5547 fax: 503/620-5665 south central area austin, tx tel: 512/255-0080 fax: 512/255-0733 irving, tx tel: 972/252-6698 fax: 972/252-5681 houston, tx tel: 281/257-2525 fax: 281/257-2555 northeastern area andover, ma tel: 508/474-9300 fax: 508/474-9149 southeastern area raleigh, nc tel: 919/859-5210 fax: 919/859-5334 boca raton, fl tel: 407/241-2364 fax: 407/241-7990 international china beijing tel: 86/10-642-807-83-5 fax: 86/19-672-807-86 france paris tel: 33/1-48-12-2812 fax: 33/1-48-12-2810 germany herrsching tel: 49/81-52-92460 fax: 49/81-52-924699 hong kong tsimshatsui tel: 852/2376-0801 fax: 852/2375-1202 italy milan tel: 39/2-3360-5458 fax: 39/2-3360-5426 japan tokyo tel: 81/3-3340-9111 fax: 81/3-3340-9120 korea seoul tel: 82/2-565-8561 fax: 82/2-565-8565 singapore tel: 65/743-4111 fax: 65/742-4111 taiwan taipei tel: 886/2-718-4533 fax: 886/2-718-4526 united kingdom london, england tel: 44/1727-872424 fax: 44/1727-875919
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