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fm209 and fm214 9600/14400 bps monofax ? modem family data sheet 100087a july 2002
? 2002, conexant systems, inc. all rights reserved. information in this document is provided in connection with conexant systems, inc. (?conexant?) products. these materials are p rovided by conexant as a service to its customers and may be used for informational purposes only. conexant assumes no responsibility for errors or omissions in these materials. conexant may make changes to specifications and product descriptions at any time, without notice. conexant makes no commitment to update the information and shall have no re sponsibility whatsoever for conf licts or incompatibilities ar ising from future changes to its specificati ons and product descriptions. no license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document. exce pt as provided in conexant?s terms and conditions of sale for such products, conexant assume s no liability whatsoever. these materials are provided ?as is? without warranty of any kind, either express or implied, relating to sale and/or use of conexant products including liability or warranties relating to fitness for a particular purpose, consequential or incidental damages, merchantability, or infringement of any patent, copyright or other intellectual property right. conexant further does not warrant the accuracy or completeness of the information, text, graphics or other items contained within these materials. conexant shall not be liable for any special, indirect, incidental, or consequentia l damages, including without limitation, lost revenues or lost profits, which may result from the use of these materials. conexant products are not intended for use in medical, lifesavin g or life sustaining applications. conexant customers using or selling conexant products for use in such applications do so at their own risk and agree to fully indemnify conexant for any damages resulting f rom such improper use or sale. the following are trademarks of conexant systems, inc.: conexant ?, the conexant c symbol, and ?what?s next in communications technologies??. product names or services listed in this publication are for identification purposes only, and may be trademark s of third parties. third-party brands and names are the pr operty of their respective owners. for additional disclaimer information, please consult conexant?s legal information posted at www.conexant.com which is incorporated by reference. reader response: conexant strives to produce quality documentation and we lcomes your feedback. please send comments and suggestions to conexant.tech.pubs@conexant.com . for technical questions, contact your local conexant sales office or field applications engineer. ii conexant 100087a preliminary information/conexant proprietary and confidential 07/31/02 revision history trademarks use this section to acknowledge trademarks by holders other than conexant when specifically requir ed to do so. this section is otherwise optional. revision date description md205 03/31/98 initial release of document labeled md205 a 07/26/02 format update and document number update
100087a conexant iii 07/31/02 preliminary information/conexant proprietary and confidential fm209 and fm214 9600/14400 bps monofax modem family the conexant? fm209 and fm214 monofax modem family offers synchronous 9600 or 14400 bits per second (bps) half-duplex modems with error detection, voice and audio codecs, full-duplex speakerphone, automatic speech recognition, dtmf reception, v.23 full-duplex, type i caller id and type ii caller id cas detection. it has low power consumption and is housed in a single 128-pin thin quad flat pack (tqfp) device package. the modem's small size and low power consumption allow the design of compact system enclosures for u se in both office and home environments. the table below lists the fm209/fm214 models and features. group 3 facsimile modem the modem can operate over the public switched telephone network (pstn) through line termination provided by a data access arrangement (daa). the modem satisfies the requirements specified in itu-t recommendations v.33, v.17, v.29, v.27 ter, v.21 channel 2 (fsk), t.4, and meets the binary signaling requirements of t.30. the modem operates at 14400, 12000, 9600, 7200, 4800, 2400, or 300 bps. the modem supports the v.17 signaling rates of 14400, 12000, 9600, and 7200 bps using trellis-coded modulation (tcm). in addition, the modem supports v.27 ter and v.17 short trains. the modem can also perform hdlc framing according to t.30 at 14400, 12000, 9600, 7200, 4800, 2400, or 300 bps. a fsk flag pattern (7e) detector facilitat es fsk detection during v.33, v.17, v.29, and v.27 ter reception. the modem includes a programmable single/dual tone transmitter, a programmable dtmf receiver, three programmable tone det ectors (which operate concurrently with the v.21 channel 2 receiver), and a ring detector. the transmit output level is also programmable. (continued on page 5) fm209 and fm214 models and features modem model supported features maximum line speed voice and audio codecs (-v) full duplex speakerphone (-s) automatic speech recognition (-r) FM214-Vsr 14.4 kbps FM214-Vs 14.4 kbps ? FM214-V 14.4 kbps ?? fm214 14.4 kbps ??? fm209-vsr 9.6 kbps fm209-vs 9.6 kbps ? fm209-v 9.6 kbps ?? fm209 9.6 kbps ??? distinguishing features group 3 facsimile transmission/reception itu-t v.17 and v.33 (fm214 models) itu-t v.29, v.27 ter, t.30, v.21 channel 2, t.4 itu-t v.17 and v.27 ter short train itu-t v.17 short trains hdlc framing at all speeds receive dynamic range: 0 dbm to ?43 dbm automatic adaptive equalization fixed and programmable digital compromise equalization dtmf detect and tone detect itu-t v.21 channel 2 fsk 7e flag detect ring detector programmable transmit level programmable single/dual tone transmission voice codec (-v option) 24 minutes of voice storage per 4 mb memory near toll quality voice recording and playback programmable agcs programmable line/microphone input and line/speaker output filters error correction coding allows aram usage dtmf detect, tone detect, and tone transmit type ii caller id cas detection pitch synchronized fast and slow playback near-end echo cancellation adpcm audio codec (-v option) high fidelity recording and playback of audio signals 32 kbps and 24 kbps programmable agcs programmable line/microphone input and line/speaker output filters dtmf detect, tone detect, and tone transmit type ii caller id cas detection near-end echo cancellation (continued on next page)
100087a conexant iv 07/31/02 preliminary information/conexant proprietary and confidential voice and audio codecs (-v option) the voice coder/decoder (codec) compresses vo ice at an average rate of 2.9 kbps or at a fixed rate of 4.7 kbps with near toll quality playback at various pitch synchronized playback speeds. an average rate of 2.9 kb ps provides 24 minutes of stored voice messages in 4 mb of memory. this voice codec allows the host controller to efficiently store and playback digital incoming messages (icms) and outgoing messages (ogms). the adpcm audio codec compresses audio signals (music/voice) at 32 kbps or 24 kbps for highest fidelity coding and reproduction. the pcm audio codec allows the host controller to transmit and receive uncompressed audio signals. selectable error correction coding allows storage in audio grade rams (arams). echo cancellation techniques employed during playback allow dtmf, type ii caller id cas detection, and tone detection during vo ice/audio codec operation to support user selectable features. dual or single tone transmission is supported. the coder can record messages from either the primary or secondary ia. speakerphone (-s option) the full-duplex speakerphone provides hands-free telephone conversation employing acoustic and line echo cancellation and supports intercom conversation employing dual acoustic echo cancellation. the optional half-duplex speakerphone provides hand-free telephone/intercom conversation with exceptional high gain. the speakerphone algorithm constantly adjusts its parameters to deliver the best performance during real-time conditions, al lowing automatic fallback from full duplex to pseudo-duplex. the host controller can easily set up the speaker mute, microphone mute, automatic gain control (agc) enable/disable, microphone level, line level, speaker volume, tone transm it, and handset functions. conversation recording and message pl ayback are supported during the speakerphone operation. dtmf detection, type ii caller id cas detection, and three tone detectors are also supported. automatic speech recognition (-r option) automatic speech recognition (asr) consis ts of speaker independent (si) north american english isolated word recognition for a predefined 69 word vocabulary list, speaker dependent (sd) isolated word training, and sd isolated word recognition functions. distinguishing features (continued) pcm audio codec 128 kbps and 64 kbps dtmf detect and tone detect type ii caller id cas detection near end echo cancellation full-duplex speakerphone (-s option) acoustic echo cancellation line echo cancellation or secondary acoustic echo cancellation programmable microphone and speaker agcs programmable line and speaker output filters microphone and speaker volume control and muting auto fallback toward pseudo-duplex operation under poor operating conditions programmable handset echo simulation in handset operation high gain half-duplex mode intercom support dtmf detect and 3 tone detectors type ii caller id cas detection two dual tone transmitters conversation recording and message playback with voice or adpcm audio codec (-vs option) automatic speech recognition (-r option) speaker dependent (sd) and speaker independent (si) isolated word recognition si vocabulary (english) for hands-free voice control of dialing, telephone answering machine and fax functions active word list for recognition selected by host controller supports speech input from microphone, local handset, or telephone line si word models trained off-line and stored in dsp rom sd word models trained in real-time, stored in (off-chip) nvram and downloaded to dsp ram supports up to 30 active simultaneous sd words sd training - single utterance or multiple utterances 2.5 second maximum speech length for sd training rejection capability provided for si mode (continued on next page)
100087a conexant v 07/31/02 preliminary information/conexant proprietary and confidential v.23 full-duplex modem and caller id both full duplex transmit and receive (w ith asymmetric 1200/75 bps connection) and half-duplex (1200 bps) asynchronous v.23 are supported, as well as both serial and parallel interfaces to the modem. the v.23 algorithm includes an optional, programmable, receive compromise equalizer which is active in both v.23 and caller id modes. common applications for v.23 include france's minitel and japan's lowest cost routing. general purpose output (gpo) and general purpose input (gpi) pins are available for host assignment. v.23 full-duplex modem and caller id (continued) additional design information is described in the fm209 and fm214 monofax modem family designer's guide ( order number 1175 ). distinguishing features (continued) room monitor dtmf detect, tone detect and tone transmit type ii caller id cas detection near end echo cancellation monitor recording and message playback with voice or audio codec (-v option) v.23 and type i caller id full-duplex modes: ? tx = 75 bps, rx = 1200 bps ? tx = 1200 bps, rx = 75 bps half-duplex mode: ? tx = rx = 1200 bps serial and parallel data modes programmable parallel data mode 5, 6, 7, or 8 data bits 1 or 2 stop bits mark, space, even, or odd parity break function transmitter squelch compromise equalizer interface memory interrupt eight general purpose input (gpi) and eight general purpose output (gpo) pins for host assignment dte interface: two alternate ports selectable microprocessor bus (6500 or 8085) itu-t v.24 (eia/tia-232-e compatible) interface ttl and cmos compatible 3.3v/5v operation power consumption: operating mode: ? 200 mw (basic) ? 275 mw (-v option) ? 300 mw (-vs option) sleep mode: ? 1 ma (basic and -v option) ? 1 ma (-vs option) packaging 128-pin tqfp (thin quad flat pack) software compatible with all monofax modems
vi conexant 100087a preliminary information/conexant proprietary and confidential 07/31/02
100087a conexant vii preliminary information/conexant proprietary and confidential 07/09/02 3:00 pm contents contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi 1 technical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 1.1 configurations, symbol rates and data rates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 1.2 scrambler/descrambler. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 1.2.1 data encoding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 1.3 fixed digital cable compromise equalizer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 1.4 transmitted data spectrum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 1.5 transmit level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 1.6 turn-on sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 1.7 receive dynamic range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 1.8 automatic adaptive equalizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 1.9 receiver timing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 1.10 carrier recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 1.11 turn-off sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 1.12 clamping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 1.13 v.23 full-duplex features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 1.14 caller id reception . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 1.15 tone generation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 1.15.1 tone detectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 2 hardware interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1 2.1 general specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 3 software interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 3.1 interface memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 3.2 dsp ram access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
fm209 and fm214 design guide viii conexant 100087a preliminary information/conexant proprietary and confidential 07/09/02 3:00 pm
100087a conexant ix preliminary information/conexant proprietary and confidential 07/09/02 3:00 pm figures figure 3-1. modem functional interconnect diagram (fax) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 figure 3-2. modem functional interconnect diagram (fax and dtam) . . . . . . . . . . . . . . . . . . . . . . . . 3-3 figure 3-3. modem functional interconnect diagram (fax, dtam, and speakerphone) . . . . . . . . . . . . 3-4 figure 3-4. pin signals-128-pin tqfp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
fm209 and fm214 design guide x conexant 100087a preliminary information/conexant proprietary and confidential 07/09/02 3:00 pm
100087a conexant xi preliminary information/conexant proprietary and confidential 07/09/02 3:00 pm tables table 1-1. configurations, signaling rates, and data rates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 table 1-2. turn-on sequence times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 table 1-3. turn-off sequence times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 table 2-1. current and power requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 table 2-2. environmental requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
fm209 and fm214 design guide xii conexant 100087a preliminary information/conexant proprietary and confidential 07/09/02 3:00 pm
100087a conexant 1 - 1 07/01/02 3:00 pm preliminary information/conexant proprietary and confidential 1 technical specifications 1.1 configurations, symbol rates and data rates the selectable modem configurations, along with the corresponding symbol (baud) rates and data rates, are listed in table 1-1 . table 1-1. configurations, signaling rates, and data rates configuration modulation (1) carrier frequency (hz) 0.01% data rate (bps) 0.01% baud (symbols/ sec.) bits per symbol constellation points v.17/v.33 14400 (2) tcm 1700 or 1800 14400 2400 6 128 v.17/v.33 12000 (2) tcm 1700 or 1800 12000 2400 5 64 v.17 9600 (2) tcm 1700 or 1800 9600 2400 4 32 v.17 7200 (2) tcm 1700 or 1800 7200 2400 3 16 v.29 9600 qam 1700 9600 2400 4 16 v.29 7200 qam 1700 7200 2400 3 8 v.29 4800 qam 1700 4800 2400 2 4 v.27 ter 4800 dpsk 1800 4800 1600 3 8 v.27 ter 2400 dpsk 1800 2400 1200 2 4 v.21 channel 2 300 fsk 1650, 1850 300 300 1 ? v.23 receive hdx fsk 1300, 2100 1200 1200 1 ? v.23 1200/75 fsk 1300, 2100/ 390, 450 1200/75 1200 1 ? type i caller id fsk 1200, 2200 1200 1200 1 ? footnote: (1) modulation legend: qam: quadrature amplitude modulation dpsk: differential phase shift keying fsk: frequency shift keying tcm: trellis-coded modulation (2) fm214 models only.
1-2 conexant 100087a preliminary information/conexant proprietary and confidential 07/01/02 3:00 pm technical specifications fm209 and fm214 data sheet 1.2 scrambler/descrambler the modem incorporates a self-synchronizing scrambler/descrambler in accordance with itu-t v.33, v.17, v.29, and v.27 ter recommendations, depending upon the selected configuration. 1.2.1 data encoding the data encoding conforms to itu-t recommendations v.33, v.17, v.29, v.27 ter, v.21 channel 2, and v.23. 1.3 fixed digital cable compromise equalizer compromise equalization can improve performance when operating over low quality lines. the modem has a selectable fixed digital compromise cable equalizer in the high speed receive and transmit data path. 1.4 transmitted data spectrum the transmitted data spectrum is shaped in the baseband by an excess bandwidth finite impulse response (fir) filter with the following characteristics: when operating at 2400 baud, the transmitted spectrum is shaped by a square root of 20% raised cosine filter. when operating at 1600 baud, the transmitted spectrum is shaped by a square root of 50% raised cosine filter. when operating at 1200 baud, the transmitted spectrum is shaped by a square root of 90% raised cosine filter. the out-of-band transmitter energy levels in the 4 - 50 khz frequency range are below -55.0 dbm. 1.5 transmit level the transmitter output level is programmable in the dsp ram from 0 dbm to -15.0 dbm and is accurate to 1.0 db. the modem adjusts the output level by digitally scaling the output to the transmitter's digital-to-analog converter.
100087a conexant 1 - 3 07/01/02 3:00 pm preliminary information/conexant proprietary and confidential fm209 and fm214 data sheet technical specifications 1.6 turn-on sequence transmitter turn-on sequence times are shown in table 1-2 . table 1-2. turn-on sequence times 1.7 receive dynamic range the receiver satisfies pstn performance requirements for received line signal levels from 0 dbm to -43 dbm measured at the receiver analog input (rxa) input. an external input buffer must be supplied between rxa and linein. the default values of the programmable received line signal detector (rlsd#) turn-on and turn-off threshold levels are -43 dbm and -48 dbm, respectively. the rlsd# threshold levels can be programmed over the following range: turn on: -10 dbm to -47 dbm turn off: -10 dbm to -52 dbm 1.8 automatic adaptive equalizer an adaptive equalizer in itu-t v.33, v.17, v.29 and v.27ter modes compensates for transmission line amplitude and group delay distortion. 1.9 receiver timing the timing recovery circuit can track a 0.01% frequency error in the associated transmit timing source. 1.10 carrier recovery the carrier recovery circuit can track a 7 hz frequency offset in the received carrier. configuration rts# on to cts# on echo protector tone disabled echo protector tone enabled v.17/v.33 1393 ms 1600 ms v.17 short train 142 ms 349 ms v.29 long train 253 ms 441 ms v.29 short train 75 ms 282 ms v.27 ter 4800 bps long train 708 ms 915 ms v.27 ter 4800 bps short train 50 ms 257 ms v.27 ter 2400 bps long train 943 ms 1150 ms v.27 ter 2400 bps short train 67 ms 274ms v.21 channel 2 300 bps 14 ms 14 ms
1-4 conexant 100087a preliminary information/conexant proprietary and confidential 07/01/02 3:00 pm technical specifications fm209 and fm214 data sheet 1.11 turn-off sequence transmitter turn-off sequence times are shown in table 1-3 table 1-3. turn-off sequence times 1.12 clamping received data (rxd) is clamped to a constant mark whenever rlsd# is off. 1.13 v.23 full-duplex features the modem can transmit and detect break signals (continuous space). the mark and space frequencies are 1300 and 2100 hz, respectively, for 1200 bps, and 390 and 450 hz, respectively, for 75 bps. additional features include an optional host programmable receive compromise equalizer for v.23 1200 bps reception and caller id mode. default transmitter turn-on/turn-off sequence times are 10.5 ms (rts on to cts on) and 2.2 ms (rts off to cts off). 1.14 caller id reception caller id reception (cid) allows customer premises equipment (cpe) to receive a calling party's directory number which includes the date and time of the call. for type i caller id this information is contained in the first 4-second silent interval in the ring cycle. for type ii caller id support an ack signal is sent by the cpe in response to a cas tone, after which the calling party information from the stored program control switching system (spcs) can be received by the cpe. configuration data and scrambled ones no transmitted energy total v.33/v.17 13.3 ms 20 ms 33.3 ms v.17 short train 13.3 ms 20 ms 33.3 ms v.29 long train and short train 5 ms 20 ms 25 ms v.27 ter 4800 bps long train 7 ms 20 ms 27 ms v.27 ter 4800 bps short train 7 ms 20 ms 27 ms v.27 ter 2400 bps long train 10 ms 20 ms 30 ms v.27 ter 2400 bps short train 10 ms 20 ms 30 ms v.21 channel 2 300 bps 7 ms 0 ms 7 ms footnote: (1) in parallel data mode, the turn-off sequence may be extended by 8 bit times. (2) in hdlc mode, the turn-off sequence may be extended by more than 8 bit times.
100087a conexant 1 - 5 07/01/02 3:00 pm preliminary information/conexant proprietary and confidential fm209 and fm214 data sheet technical specifications 1.15 tone generation the modem can generate voice-band single or dual tones from 0 hz to 4800 hz with a resolution of 0.15 hz and an accuracy of 0.01%. tones over 3000 hz are attenuated. dual tone generation allows the modem to operate as a programmable dtmf dialer. 1.15.1 tone detectors all three tone detectors operate in all receive modes. the tone detectors can also operate as one 12th order filter. the filter coefficients of each filter are host programmable in ram. the output of the tone detector filter goes to an energy detector.
1-6 conexant 100087a preliminary information/conexant proprietary and confidential 07/01/02 3:00 pm technical specifications fm209 and fm214 data sheet
100087a conexant 2 - 1 07/31/02 3:00 pm preliminary information/conexant proprietary and confidential 2 hardware interface the fax, digital telephone answering machine (dtam), and speakerphone hardware interface signals are shown in figure 1, figure 2, and figure 3. any point that is active when exhibiting the relatively more negative voltage of a two-voltage system (0 vdc for ttl or -12 vdc for eia/tia-232-e) is called active low and is represented by a small circle at the signal point. active low signals are indicated by a pound sign (#), (reset#). edge-triggered clocks are indicated by a small triangle (dclk). a small half circle denotes open-collector (open-source or open-drain) outputs (signal irq#). a clock intended to activate logic on its rising edge (low-to-high transition) is called active high, while a clock intended to activate logic on its falling edge (high-to-low transition) is called active low. when clock input is associated with a small circle, the input activates on a falling edge. if no circle is shown, the input activates on a rising edge. the pin assignments for the 128-pin tqfp are shown in 2.1 general specifications the modem power and environmental requirements are listed in table 2-1 and table 2-2 , respectively. table 2-1. current and power requirements mode option current (typ.) @25 c 3.3v 5%. dvaa 2.5 ma v dd basic 50 ma - v 72 ma - vs 80 ma 5v 5% v gg ????? 5.5 ma basic .25 ma - v .30 ma - vs .30 ma footnote: (3) input ripple 0.1 v peak-peak . the amplitude of any frequency between 20 khz and 150 khz must be less than 500 v peak .
2-2 conexant 100087a preliminary information/conexant proprietary and confidential 07/31/02 3:00 pm hardware interface fm209 and fm214 data sheet table 2-2. environmental requirements parameter specification temperature operating storage 0 c to +70 c (32 f to 158 f) ? 55 c to +125 c (?67 f to 257 f) relative humidity up to 90% non-condensing, or a wet bulb temperature up to 35 c, whichever is less.
100087a conexant 3 - 1 07/31/02 3:00 pm preliminary information/conexant proprietary and confidential 3 software interface modem functions are implemented in firmware executing in the modem dsp. the dsp ram interface memory bits, access functions, codes, and registers are defined in the designer's guide. 3.1 interface memory the dsp communicates with the host processor by means of a dual-port, interface memory. this interface memory contains thirty-two 8-bit registers, labeled register 00h through 1fh. each register can be read or written by the host and the dsp. the host controls the modem operation by writing control bits to dsp interface memory and writing parameter values to dsp ram through interface memory. the host monitors the modem operation by reading status bits from dsp interface memory and reading parameter values from dsp ram through interface memory. an interface memory interrupt is provided. 3.2 dsp ram access the dsp contains 16-bit word ram. because the dsp is optimized for performing complex arithmetic, the ram is organized into real (x ram) and imaginary (y ram) parts. the host processor can read or write both the x ram and the y ram. dsp interface memory mediates data exchange between the host and dsp ram. the address stored in interface memory ram address registers by the host determines the dsp ram address for data access.
3-2 conexant 100087a preliminary information/conexant proprietary and confidential 07/31/02 3:00 pm software interface fm209 and fm214 data sheet figure 3-1. modem functional interconnect diagram (fax) 100087_001 usart (optional) txd read# reset# irq1# irq2# xtli +5 v gnd +3.3 v xtlo write# data bus addr. bus cs# rxd dclk rts# cts# offhook talk ringd lineout telephone line linein spkrp spkrm eyexy eyeclk eyesync rlsd# host processor (dte) fm209/214 monofax modem eye pattern generator (optional) speaker driver (optional) power supply decoder daa crystal
100087a conexant 3 - 3 07/31/02 3:00 pm preliminary information/conexant proprietary and confidential fm209 and fm214 data sheet software interface figure 3-2. modem functional interconnect diagram (fax and dtam) 100087_002 usart (optional) txd read# reset# irq1# irq2# xtli +5 v gnd +3.3 v xtlo write# data bus addr. bus cs# rxd dclk rts# cts# offhook talk ringd lineout telephone line linein spkrp micp micm mic bias spkrm eyexy eyeclk eyesync rlsd# host processor (dte) fm209/214-v monofax modem eye pattern generator (optional) microphone amp. speaker driver (optional) power supply decoder daa crystal
3-4 conexant 100087a preliminary information/conexant proprietary and confidential 07/31/02 3:00 pm software interface fm209 and fm214 data sheet figure 3-3. modem functional interconnect diagram (fax, dtam, and speakerphone) 100087_003 usart (optional) txd read# reset# irq1# irq2# xtli +5 v gnd +3.3 v xtlo write# data bus addr. bus cs# rxd dclk rts# cts# offhook talk ringd lineout telephone line linein spkrp_p micp_s micm_s mic bias_s micp_p micm_p mic bias_p spkrm_p spkrp_s spkrm_s eyexy eyeclk eyesync rlsd# host processor (dte) fm209/214-vs monofax modem eye pattern generator (optional) microphone amp. speaker driver (optional) power supply decoder daa crystal
100087a conexant 3 - 5 07/31/02 3:00 pm preliminary information/conexant proprietary and confidential fm209 and fm214 data sheet software interface 100087_004 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 gpo5 gpo6 vdd4 gpo7 gpi7 gpi6 gpi5 gpi4 gpi3 gpi2 read# cs# write# csbr# (3) /reserved (2) d0 dgnd3 d1 vdd3 dgnd2 d2 d3 d4 d5 d6 d7 vdd2 mclk_s (1) /nc (2) iclk_p nc avdd_p spkrm_p spkrp_p agnd4 lineout_p vaa_p vc_p vref_p nc 102 101 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 sr4in (1) /reserved (2) sr3out (1) /reserved (2) eyesync eyeclk rxd sr1io nc eyexy sr4out vdd1 rlsd# dclk en85# gpio rts# dgnd1 txd sa1clk rs4 rs3 rs2 rs1 rs0 yclk iaclk ia1clk ctrlsin_s (1) /nc (2) reserved (1) /nc (2) sout_s (1) /nc (2) sin_s (1) /nc (2) fsync_s (1) nc (2) iareset_s# (1) /nc (2) agnd1 linein_s (1) /nc (2) micp_s (1) /nc (2) micm_s (1) /nc (2) micbias_s (1) /nc (2) nc 128 127 126 125 124 123 122 121 120 119 118 117 116 115 114 113 112 111 110 109 108 107 106 105 104 103 nc vref_s (1) /nc (2) vc_s (1) /nc (2) vaa_s (1) /nc (2) lineout_s (1) /nc (2) nc agnd2 spkrp_s (1) /nc (2) spkrm_s (1) /nc (2) avdd_s (1) /nc (2) reserved_s (1) /nc (2) iclk_s (1) /nc (2) mclk_s (1) /nc (2) ctrlsin_p reserved sout_p sin_p fsync_p iareset_p# agnd3 nc linein_p micp_p micm_p micbias_p nc 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 reserved agnd5 dvaa dgnd6 reserved reserved sr3in irq2# gpi1 xclk reserved xtlo xtli reset# dgnd5 vgg vdd5 gpo0 gpo1 gpo2 irq1# cts# dgnd4 gpo3 gpo4 reserved footnote: (1) for _s options. (2) for all other options. (3) for _r options. figure 3-4. pin signals-128-pin tqfp
3-6 conexant 100087a preliminary information/conexant proprietary and confidential 07/31/02 3:00 pm software interface fm209 and fm214 data sheet
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