Teridian V.22 bis Linux Softmodem for 73M1822/73M1922 MicroDAA User Guide Rev. 1.5 April 7, 2009 UG_1x22_043

Transcription

1 Simplifyig System Itegratio TM Teridia V.22 bis Liux Softmodem for 73M1822/73M1922 MicroDAA User Guide Rev. 1.5 April 7, 2009 UG_1x22_043

2 V.22 bis Liux Softmodem for 73M1x22 MicroDAA User Guide UG_1x22_ Teridia Semicoductor Corporatio. All rights reserved. Teridia Semicoductor Corporatio is a registered trademark of Teridia Semicoductor Corporatio. Simplifyig System Itegratio is a trademark of Teridia Semicoductor Corporatio. Hayes, Hayes AT, Smartcom ad Smartmodem are registered trademarks of Hayes Microcomputer Products. IBM, IBM PC, IBM AT ad PS/2 are registered trademarks of IBM. MNP is a registered trademark of Microcom. Tri-state is a registered trademark of Natioal Semicoductor Corporatio. All other trademarks are the property of their respective owers. Teridia Semicoductor Corporatio makes o warraty for the use of its products, other tha expressly cotaied i the Compay s warraty detailed i the Teridia Semicoductor Corporatio stadard Terms ad Coditios. The compay assumes o resposibility for ay errors which may appear i this documet, reserves the right to chage devices or specificatios detailed herei at ay time without otice ad does ot make ay commitmet to update the iformatio cotaied herei. Accordigly, the reader is cautioed to verify that this documet is curret by comparig it to the latest versio o or by checkig with your sales represetative. Teridia Semicoductor Corp., 6440 Oak Cayo, Suite 100, Irvie, CA TEL (714) , FAX (714) , 2 Rev. 1.5

3 UG_1x22_043 V.22 bis Liux Softmodem for 73M1x22 MicroDAA User Guide Table of Cotets 1 Itroductio Use of this Documet Laguage ad Termiology Registered Trademarks User Guide The AT Commad Format S-Registers S-Register Overview S0 Auto Aswer S1 Rig Cout S2 Escape Code Character S3 Carriage Retur Character S4 Lie Feed Character S5 Backspace Character S6 Wait Before Blid Dial S7 Wait For Carrier After Dial S8 Pause Time For Comma S9 Carrier Detect Respose Time S10 Lost Carrier Hag Up Delay S99 Preset Coutry Selectio S11 DTMF To/Toff Dialig Speed S12 DTMF / Twist Dial Register S13 DTMF-Data / Trasmit Atteuatio S85 DTMF- DAC trasmit level coefficiet S32 Pulse Dial Make Time S33 Pulse Dial Break Time S34 Pulse Dial Iter-digit Time S72 Pulse Map \ CID cotrol \ Black Listig cotrol S92 Status Register S86 Flash (!) / O Time S87 Flash (!) / Off Time S120 Accepted Aswer Toe Frequecies S121 Aswer Toe Qualify Time S29 Exteded Result Code/ Cadece Status S73 Cofiguratio ad Status Register S66 Dial Toe / Wait For Dial Toe Time S67 Dial Toe / Qualify Dial Toe Time S35 Dial Toe / Cadece A Miimum O Time S36 Dial Toe / Cadece A Maximum O Time S37 Dial Toe / Cadece A Miimum Off Time S38 Dial Toe / Cadece A Maximum Off Time S39 Dial Toe / Cadece B Miimum O Time S40 Dial Toe / Cadece B Maximum O Time S41 Dial Toe / Cadece B Miimum Off Time S42 Dial Toe / Cadece B Maximum Off Time S23 Busy Detectio Cadece Cycle Cout S43 Busy Toe / Cadece A Miimum O Time S44 Busy Toe / Cadece A Maximum O Time S45 Busy Toe / Cadece A Miimum Off Time S46 Busy Toe / Cadece A Maximum Off Time S47 Busy Toe / Cadece B Miimum O Time S48 Busy Toe / Cadece B Maximum O Time S49 Busy Toe / Cadece B Miimum Off Time Rev

4 V.22 bis Liux Softmodem for 73M1x22 MicroDAA User Guide UG_1x22_043 S50 Busy Toe / Cadece B Maximum Off Time S20 Call Progress Selectio S88 Imprecise Filter Selectio S19 Precise Call Progress Selectio S63 Precise Call Progress Detect S75 Pre Dial Call Progress Imprecise Detect Level S76 Post Dial Call Progress Imprecise Detect Level S77 Pre Dial Call Progress Precise Detect Level S78 Post Dial Call Progress Precise Detect Level S15 Callig Toe Off Time S16 Callig Toe O Time S30 Data Modulatio Selectio S31 Data Modulatio Status S119 Wait Before Coect S124 V23 Half Duplex Eable S25 Protocol Selectio S79 FSK Origiate Carrier Detect Level S80 FSK Aswer Carrier Detect Level S81 PSK Origiate Carrier Detect Level S82 PSK Aswer Carrier Detect Level S83 QAM Origiate Carrier Detect Level S84 QAM Aswer Carrier Detect Level S117 Iactivity Timeout S105 Pre Call attempt delay S106 Delay betwee 1 st ad 2 d attempt S107 Delay betwee N th ad N+1 th attempt S108 Maximum successive failed attempts S109 Delay betwee series S123 Software Rig Detect S17 Rig / Miimum Frequecy Detectio S18 Rig / Maximum Frequecy Detectio S51 Rig / Cadece A Miimum O Time S52 Rig / Cadece A Maximum O Time S53 Rig / Cadece A Miimum Off Time S54 Rig / Cadece A Maximum Off Time S55 Rig / Cadece B Miimum O Time S56 Rig / Cadece B Maximum O Time S57 Rig / Cadece B Miimum Off Time S58 Rig / Cadece B Maximum Off Time S74 Billig Delay Time S95 Caller ID cofiguratio S118 Caller ID Rig Iterrupt Delay S89 Parallel Pick-up Eergy Detectio (Default=0) S110 Lie-I-Use/Parallel Pick Up Cofiguratio Register S111 Lie-I-Use Settlig time S112 Lie-I-Use Eergy detectio Wait S113 Lie-I-Use Eergy Detectio Threshold S116 Parallel-Pick-Up Eergy detectio Threshold S122 Parallel Pick Up Debouce Timer S14 Geeral Modem Status Register S21 Geeral Modem Status Register S22 Geeral Modem Status Register S26 Data Mode Cotrol Register S27 Call Progress Trasmit Register S28 Fast Coect Status ad Callig Toe Eable Register S60 Test Cotrol Register S61 Sigal detect Register S62 Sigal detect Register Rev. 1.5

5 UG_1x22_043 V.22 bis Liux Softmodem for 73M1x22 MicroDAA User Guide S65 DTMF Detect Register S68 Test Timer S69 Test Error Cout S70 Auto Retrai Threshold S90 RTS to CTS Turaroud Delay S114 Maximum carrier detect threshold (High Byte) S115 Maximum carrier detect threshold (Low Byte) Applicatio Notes for the TSC Softmodem Resettig the TSC Softmodem Call Progress Detectio Built i Coutry Support V23 Operatio Lie i Use/Parallel Pick Up Detectio Support DTMF Toe Detectio SMS Applicatios SMS Applicatios cotiued SMS Applicatios cotiued S-Register Idex Related Documetatio Cotact Iformatio Revisio History Rev

6 V.22 bis Liux Softmodem for 73M1x22 MicroDAA User Guide UG_1x22_043 1 Itroductio The Teridia V.22BIS Softmodem is a V.22bis, V.22, V.23, V.21, Bell 212A, 103, ad 202 modem algorithm. It icludes the sigal processig fuctios as well as a AT commad iterpreter. 1.1 Use of this Documet It is assumed that the reader has basic familiarity with microprocessors, firmware ad data commuicatios. Prior experiece with modems is ot assumed but would be useful. This documet presets all the features icluded i the TSC V.22BIS Softmodem i terms of software. 1.2 Laguage ad Termiology To a large extet, telecommuicatios ad, by extesio, data commuicatios, has developed a termiology distict from the rest of the electroics egieerig commuity. The lack of worldwide stadards util recet years has also hampered the adoptio of widely accepted terms. North America, domiated by the earlier ifluece of Bell Telephoe, has developed termiology, which differs from that ow used by the ITU, the idustry group resposible for settig iteratioal stadards. As iteratioal data exchage grows i importace, the ITU ca be expected to grow i ifluece, eve i North America. For that reaso we have chose to use the ITU termiology i most cases. There will be some exceptios to our use of ITU terms. For example, "mark" (oe) ad "space" (zero) are much shorter tha "biary oe" ad "biary zero" ad these have bee used where appropriate. Also, we may use Bell termiology whe discussig Bell specificatios. The North America termiology is so pervasive that it is used by default i areas where the ITU has yet to veture. 1.3 Registered Trademarks Throughout this maual, we wish to ackowledge the followig: Hayes, Hayes AT, Smartcom ad Smartmodem are registered trademarks of Hayes Microcomputer Products; IBM, IBM PC, IBM AT, ad PS/2 are registered trademarks of IBM; MNP is a registered trademark of Microcom; Tri-state is a registered trademark of Natioal Semicoductor Corporatio. 6 Rev. 1.5

7 UG_1x22_043 V.22 bis Liux Softmodem for 73M1x22 MicroDAA User Guide 2 User Guide The modem firmware supports a variatio of the Hayes AT commad set as its DTE iterface. Origiatig, aswerig ad settig up the various optios are performed by sedig oe or more AT commads to the modem from the DTE. A brief descriptio of the AT commad sytax ad the AT commads supported follows. 2.1 The AT Commad Format Istructios set to the modem are referred as AT commads because they are always preceded by a prefix composed of the two characters AT that are used to get the ATtetio of the modem. Provided that the correct coectios have bee made (refer to the data sheet), the TSC Softmodem will use those two characters to determie the trasmissio rate, the data legth as well as the parity used by the DTE. Most of the AT commads have selectable parameters ad related values. Every AT commad will have the followig format: <AT><Commad>{Argumet}{=}<Eter> AT - Attetio code Commad - A commad cosists of oe letter Argumet - Optioal iformatio that further defies the commad = - Used whe settig a register You may "strig" commads together i oe commad lie as log as the total legth of the commad lie does ot exceed 63 bytes. The attetio code, AT, is oly required at the begiig of the commad lie. If o argumet is provided with a commad that takes a umerical argumet, a argumet of zero is assumed. For example, the followig commads are idetical: ATH<Eter> or ATH0 <Eter> NOTE: Iformatio i "agle" brackets <> must be icluded as part of the commad lie, while iformatio i "curly" braces {} may or may ot be ecessary as part of the commad lie. NOTE: the +++ ad A/ commads are either preceded by AT or followed by <CR>. The TSC Softmodem requires time before it is ready to accept aother commad after respodig with OK. Whe multiple AT commads are used back to back, the user must wait util after the OK<Eter>_ respose from the modem from the previous commad before the modem is ready to take aother commad. This wait time should be a least 10 ms. All commads except D, A, ad O retur a OK. The followig descriptio uses these covetios: All allowed parameters are show. specifies the default value whe applicable. A Aswer Causes the modem to immediately go o-lie (off-hook) i the Aswer mode ad attempt to hadshake regardless of the value of register S0. This commad gives you a method of maually aswerig a icomig phoe call. For restrictios, see also the R commad. Rev

8 V.22 bis Liux Softmodem for 73M1x22 MicroDAA User Guide UG_1x22_043 A/ Repeat Last Commad The A/ commad causes the modem to re-execute the last commad or commad sequece that was issued. A/ ad +++AT are the oly commads that are either preceded by AT or followed by <Eter>. B Commuicatio Stadard Selectio B0 ITU V22bis, V22 or V21 operatio B1 Bell 212A or Bell 103 operatio (also V.22bis for 2400 bps operatio) B2 V23 75bps trasmissio, 1200bps receptio Master mode B3 V bps trasmissio, 75bps receptio Slave mode B4 Bell bps receptio B5 Bell bps trasmissio B6 V23 4-Wire 1200bps receive ad trasmit B7 V23 4-Wire 1200bps receive ad trasmit (same as B6) B8 Bell Wire 1200bps receive ad trasmit B9 Bell Wire 1200bps receive ad trasmit (same as B8) B10 Selects 1200 bps V.23 Half duplex mode ( V23H). B10 ad B11 are the same B11 Selects 1200 bps V.23 Half duplex mode ( V23H). B10 ad B11 are the same. C Data Carrier Detect Sigal (DCD) Moitorig C0 DCD always ON C1 DCD ON i presece of qualified carrier sigal C2 DCD ON i presece of raw carrier sigal Durig V23 turaroud phases, the DCD sigal is OFF if C1 or C2 optios selected V23 Master or Slave mode Turaroud phase V23 Slave or Master mode Iactive Active DCD 8 Rev. 1.5

9 UG_1x22_043 V.22 bis Liux Softmodem for 73M1x22 MicroDAA User Guide D Dial This commad puts the modem ito origiate mode ad istructs the modem to dial the phoe umber expressed by the strig argumet... The umber will be dialed with either toes or pulses depedig o how the last umber was dialed. O power up, this commad will default to pulse dialig. (See the ote i DT[...] commad.) The allowable argumets for... differ for pulse ad toe dialig; see the descriptios uder DT[...] ad DP[...]. 0-9 digit Dial Strig Modifiers P R T A-D, *, # are oly allowed durig Toe dialig. Pulse dial the digits that follow. Modem uses aswer mode frequecies after dialig the umber. Allows dialig up a origiate-oly modem. Busy detect is disabled durig reverse dial. Toe dial the digits that follow. ; A ; (semicolo) causes the modem to go back ito the Commad State, allowig you to eter other commads while o-lie. To do this, the semicolo must be the last character i the commad lie., Whe iserted i a dialig strig, a, (comma) causes the modem to pause. The default time for the pause is two secods, ad ca be chaged by modifyig register (commercial "at" symbol) causes the modem to wait up to 30 secods for a 5 secod period of quiet before proceedig. This is ofte used to detect the ed of a prerecorded message. The default wait time is 30 secods, ad ca be chaged by modifyig register S7. Result Codes 7 ad 8 will be reported regardless of which Result Code Set is selected.! A! (exclamatio mark) causes a "hook flash." This simulates hagig up for 1/2 secod ad the recoectig. It is typically used for trasferrig calls. W Causes the modem to wait for a dial toe for a specified legth of time before proceedig. The default is 8 secods, ad ca be chaged by modifyig register S66. Result Code 6 will always be icluded regardless which Result Code Set is selected. S S-register modificatio. See S[r]=[] commad. J PTT Test. See J[] commad. E Echo Commad E0 Commad echo disabled E1 Commad echo eabled F Load Factory default Cofiguratio Replace the curret active cofiguratio with the factory stadard cofiguratio stored i memory Rev

10 V.22 bis Liux Softmodem for 73M1x22 MicroDAA User Guide UG_1x22_043 G Guard Toe Selectio G0 No guard toe G1 550Hz guard toe eabled G2 1800Hz guard toe eabled H Hook Cotrol H0 O-hook (hag up) H1 Off-hook (coect to phoe lie) I Idetificatio I0 I3 I4 Returs product idetificatio code Returs firmware revisio umber Returs copyright otice Returs TSC Softmodem iformatio J PTT test J0 J1 J2 J3 J4 J5 J6 J7 J8 Stop J test i progress Trasmit DTMF toes specified by registers S12 ad S13 Trasmit Aswer toe or Callig toe specified by register S13 ad S27 Trasmit modulatio specified by registers S14, S30 ad S60 Trasmit silece (quiet mode) Wait (To set up the wait time use J5.[]. [] is i 1/10 ms) Detect CAS ad DTMF toes off hook(requires host pollig of register S65)* Aalog Iterface Test Mode: Loops back the TXAP-TXAN sigal to RXA through exteral compoets to check if everythig is wired correctly. Returs OK, or ERROR. Sigal Levels are specified with S113, S114-S115. Goes off-hook ad wait for CAS toe. If a CAS is detected, sed a ack ad detect a US CID. *A alterate (preferred) method of detectig DTMF toes is available though usage of the Caller ID DTMF detectio mode. Refer to DTMF toes detectio chapter at the ed of this documet. 10 Rev. 1.5

11 UG_1x22_043 V.22 bis Liux Softmodem for 73M1x22 MicroDAA User Guide K DTE-DCE Flow Cotrol K0 Flow cotrol disabled K3 K4 RTS/CTS flow cotrol (hardware flow cotrol) Xo/Xoff cotrol (software flow cotrol) I Asychroous mode, CTS is tured iactive as soo as at least 15 bytes are i the 32 byte trasmit buffer. CTS is tured back active whe less tha 4 bytes are i the buffer. RTS status is oly ackowledged by the TSC Softmodem, thus startig or stoppig data trasmissio to the DTE, if data are received by the DCE. Receive Data is ot buffered by the TSC Softmodem. L Fast Coect L0 Disable Fast Coect L1 L2 L3 Disable 2100 Hz aswer toe ad billig delay 2 secod billig delay eabled with o 2100 Hz aswer toe 400 ms aswer toe ad billig delay eabled N Data Set Ready (DSR) sigal Moitorig N0 DSR always ON N1 N2 DSR is OFF i the idle state ad whe i a test mode. DSR circuit is tured ON at start of the hadshakig process. DSR is tured OFF whe hag-up process is started. DSR is OFF i the idle state ad whe i a test mode. DSR circuit is tured ON at the ed of hadshake after issuig the CONNECT result code. DSR is tured OFF whe hag-up process is started. Rev

12 V.22 bis Liux Softmodem for 73M1x22 MicroDAA User Guide UG_1x22_043 The followig shows the actios of DCD ad DSR as viewed at the RS232 coector (iverted from pis) durig the coectio process uder differet coditios. 1) Mode V22bis, Protocol eabled (through S25), Exteded result codes. V22bis coectio Carrier... result V42 detectio Prot./coect.. result Data mode DCD DSR 2) Mode V22bis, Protocol eabled (through S25), Normal result codes. V22bis coectio V42 detectio coect.. result Data mode DCD DSR 3) Mode V22bis, Protocol eabled (through S25), No result codes. V22bis coectio DCD DSR V42 detectio Data mode 4) Mode V22bis, No Protocol, Exteded result codes. V22bis coectio Carrier... result Prot./coect.. result Data mode DCD DSR 5) Mode V22bis, No Protocol, No result codes. V22bis coectio Data mode DCD DSR O O-Lie O0 If you have retured to Commad state from Data state without breakig a coectio, the O0 commad will retur you o-lie (Data state) O[1-7] Retrai O1 Similar to O0, but also causes the modem to iitiate a equalizer retrai sequece O2 Eables the modem to respod to a remote request for retrai O3 O4 O5 Disables the modem to respod to a remote request for retrai Eables speed egotiatio Disables speed egotiatio 12 Rev. 1.5

13 UG_1x22_043 V.22 bis Liux Softmodem for 73M1x22 MicroDAA User Guide O6 O7 Eables rate chage to 1200 bps Eables rate chage to 2400 bps The O[] commad is used to go back o-lie whe the commad state was etered by issuig the +++ escape sequece or turig DTR from ON to OFF with the appropriated S- Register settig i effect. The O[] commad applies oly to asychroous operatio. Note: If commads O0 or O1 are give to the modem while ot coected, it will respod with ERROR. P Pulse Dial Causes the modem to pulse dial. The P modifier ca be issued i cojuctio with the dial commad, or aloe, to desigate the method used for subsequet dialig. Q Result Codes Cotrol Q0 Result codes eabled Q1 Result codes disabled Refer also to the V[] ad X[] commads. R Data Termial Ready (DTR) Actio R0 Modem igores DTR R1 R2 R3 R4 R5 Modem assumes the Commad State whe DTR trasitios from ON to OFF Modem goes o-hook (hags up), disables the Auto Aswer mode, ad assumes the Commad State whe DTR trasitios from ON to OFF. Turig DTR back ON will eable auto-aswer mode. Modem is reset whe DTR trasitios from ON to OFF Eable V.23 Turaroud i Master Mode (O to Off DTR trasitio starts the turaroud). Turaroud is doe via RTS i all other R commad settigs. Power Dow with DTR toggle (eed hard reset) The R[] commad selects how the Data Termial Ready (DTR) sigal is used by the modem. Rev

14 V.22 bis Liux Softmodem for 73M1x22 MicroDAA User Guide UG_1x22_043 S S Register Moitorig S[r]? S[r]$ S[r]??? S[r]$$$ The S[r]? commad requests the modem to report the curret value of register [r]. These registers are used to set up various operatig parameters of the modem as explaied i Chapter 5. The value reported is i decimal otatio. The S[r]$ commad requests the modem to report the curret value of register [r]. The value reported is i hexadecimal otatio. The S[r]??? commad requests the modem to report the curret value of [r] ad successive registers. The values are reported i decimal otatio. The umber of registers reported correspods to the umber of? (questio marks) give to the modem. For a example: S10??? will report the values stored i the registers S10, S11, S12. The S[r]$$$ commad requests the modem to report the curret value of [r] ad successive registers. The values are reported i hexadecimal otatio. The umber of registers reported correspods to the umber of $ (dollar sigs) give to the modem. For a example: S10$$$ will report the values stored i the registers S10, S11, S12. S[r]=[] S[r]=[] Set S-Register Value r = 0 to 104 = 0 to 255 The S[r]=[] commad allows you to set (modify) the value of ay of register [r] to ew value []. The value [] is etered i decimal otatio. S[r]=.$..$ S[r]+[] S[r]-[] The S[r]=.$..$ commad allows you to set (modify) the value of ay of [r] ad successive registers to the ew values (decimal otatio) or $ (hexadecimal otatio). For a example: S10=$F0.128.$EC.25 will set register S10=F0 (hexadecimal), S11=128 (decimal), S12=EC (hexadecimal), ad S13=15 (decimal). All hexadecimal values must be etered i as a two digit hex value. For example eter $0A istead of $A. The S[r]+[] commad sets bits i [r] S register by ORig the [] value ad the value curretly i the S Register. The S[r]+[] commad clears bits i [r] S register by ANDig the [ot ] value ad the value curretly i the S Register. All bits set i the mask [] will be cleared i the S register. T Toe Dial Causes the modem to toe dial. The T modifier ca be issued i cojuctio with the dial commad, or aloe, to desigate the method used for subsequet dialig. 14 Rev. 1.5

15 V.22BIS Liux Softmodem for 73M1x22 MicroDAA User Guide UG_1x22_043 V Verbose/Numeric Result Codes Selectio V0 Numeric result codes Format <CR>digit(s)<CR> V1 Verbose result codes Format <CR><LF>word<CR><LF> V2 Numeric result codes - Format <CR><LF>digit(s)<CR><LF> Refer also to the Q[] ad X[] commads Y Asychroous/Sychroous Mode Selectio Y0 Y1 Y4 Y6 Asychroous mode. No speed bufferig, o protocol. Sychroous mode. No speed bufferig, o protocol. Quasi-Sychroous mode. Allows the trasmissio ad receptio of sychroous data through a asychroous DTE by strippig off start ad stop bits o trasmissio ad addig them o receptio (See V42 operatio). Asychroous with speed bufferig. Allows fixed DTE-DCE speed so applicatios do ot eed to chage the commuicatios rate based o coectio results. 15 Rev. 1.4

16 V.22 bis Liux Softmodem for 73M1x22 MicroDAA User Guide UG_1x22_043 W Exteded Result Codes Selectio W0 W1 W2 Do ot retur exteded result codes (40-80). The message CONNECT followed by the data rate betwee the DTE ad the modem will be set to the DTE The CONNECT message will report the DTE speed the eable the carrier ad exteded result codes The CONNECT message will report the DCE speed. All exteded result codes are disabled Result codes Numeric value Verbose value Numeric value Verbose value 0 OK 13 CONNECT CONNECT 14 LINE-IN-USE 2 RING 22 CONNECT 75/ NO CARRIER 23 CONNECT 1200/75 4 ERROR Exteded Results Codes: 5 CONNECT CARRIER NO DIALTONE 41 CARRIER BUSY 44 CARRIER 1200/75 8 NO ANSWER 45 CARRIER 75/ CONNECT CARRIER CONNECT CARRIER CONNECT PROTOCOL:NONE 12 CONNECT PROTOCOL:LAP-M 16 Rev. 1.5

17 UG_1x22_043 V.22 bis Liux Softmodem for 73M1x22 MicroDAA User Guide X Result Codes Set ad Dialig Capabilities Selectio X0 Eable Result Codes 0-4, 14 X1 Eable Result Codes 0-5, X2 Eable Result Codes 0-6, X3 Eable Result Codes 0-5, 7, X4 Eable Result Codes 0-7, X5 Eable Result Codes 0-5, ad detect BUSY at OFF HOOK X6 Eable Result Codes 0-6, ad detect BUSY at OFF HOOK X7 Eable Result Codes 0-5, 7, ad detect BUSY at OFF HOOK X8 Eable Result Codes 0-7, ad detect BUSY at OFF HOOK See Result Codes table uder W commad. X0 X1 X2 X3 X4 X5 X6 X7 X8 Pre Dial Post Dial W0 W1 W2 W0 W1 W2 0, 2 4, 14 0, 2 4, 14 0, 2 4, , 3 4, 14 0, 2 4, 14 0, 2 4, 14 0, 2 4, , 3 5, 0 1, 3 5, + ext. 9 14, 22, , 22, 23 + ext. 0, 2, 4, 6, 14 0, 2, 4, 6, 14 + ext. 0, 2 4, 14 0, 2 4, 14 + ext. 0, 2, 4, 6, 14 0, 2, 4, 6, 14 + ext. 0, 2 4, 7, 14 0, 2 4, 7, 14 + ext. 0, 2, 4, 6-7, 14 0, 2, 4, 6-7, 14 + ext. 0, 2 4, 7, 14 0, 2 4, 7, 14 + ext. 0, 2, 4, 6-7, 14 0, 2, 4, 6-7, 14 + ext. 0, 2, 4, 6, , 3 5, 9-14, 22, 23 0, 2 4, , 3 5, 7, 9-14, 22, 23 0, 2, 4, 6, , 3 5, 7, 9-14, 22, 23 0, 2 4, 7, , 3 5, 9-14, 22, 23 0, 2, 4, 6-7, , 3 5, 9-14, 22, 23 0, 2 4, 7, , 3 5, 7, 9-14, 22, 23 0, 2, 4, 6-7, , 3 5, 7, 9-14, 22, , 3 4, , 3 4, , 3 5, 9 14, 22, 23 + ext. 0 1, 3 5, 7, 9 14, 22, 23 + ext. 0 1, 3 5, 7, 9 14, 22, 23 + ext. 0 1, 3 5, 9 14, 22, 23 + ext. 0 1, 3 5, 9 14, 22, 23 + ext. 0 1, 3 5, 7, 9 14, 22, 23 + ext. 0 1, 3 5, 7, 9 14, 22, 23 + ext. 0 1, 3 5, 9-14, 22, , 3 5, 9-14, 22, , 3 5, 7, 9-4, 22, , 3 5, 7, 9 14, 22, , 3 5, 9-14, 22, , 3 5, 9-14, 22, , 3 5, 7, 9-14, 22, , 3 5, 7, 9-14, 22, 23 Rev

18 V.22 bis Liux Softmodem for 73M1x22 MicroDAA User Guide UG_1x22_043 Y Asychroous/Sychroous Mode Selectio Y0 Y1 Y4 Y6 Asychroous mode. No speed bufferig, o protocol. Sychroous mode. No speed bufferig, o protocol. Quasi-Sychroous mode. Allows the trasmissio ad receptio of sychroous data through a asychroous DTE by strippig off start ad stop bits o trasmissio ad addig them o receptio (See V42 operatio). Asychroous with speed bufferig. Allows fixed DTE-DCE speed so applicatios do ot eed to chage the commuicatios rate based o coectio results. Z Reset The Z commad resets the modem. The Z commad is equivalet to a power cycle. Additioal commads are ot allowed i the commad Cofigure Registers commad modifies the MicroDAA register Set Register Value r = 0 to 31($1F), = 0 to commad allows you to set (modify) the value of ay of [r] ad successive registers to the ew values (decimal) or $ commad sets bits i [r] register by ORig the [] value ad the value curretly i the commad clears bits i [r] register by ANDig the [ot ] value ad the value curretly i the Register. commad allows you to set (modify) the value of ay of MicroDAA register [r] to ew value []. The value [] ad [r] ca be either i decimal(o prefix) or hexadecimal($ prefix) otatio. commad allows you to set (modify) the value of ay of [r] ad successive registers to the ew values (decimal) or $ (hexadecimal). For a will set Register $10=$F0, Register $11=128 (decimal), Register $12=$EC ad S13=15 (decimal). All hexadecimal values must be etered i as a two digit hex value. For example eter $0A istead of $A. commad sets bits i [r] register by ORig the [] value ad the value curretly i the Register. commad clears bits i [r] register by ANDig the [ot ] value ad the value curretly i the Register. All bits set i the mask [] will be cleared i the Dump Registers commad dumps etire MicroDAA registers. 18 Rev. 1.5

19 UG_1x22_043 V.22 bis Liux Softmodem for 73M1x22 MicroDAA User Set Lease Lie Operatio Lease lie operatio is desigated by S89 bit 2 = 1 = 0 Sets lease lie bit Clears lease lie Escape to OS Termiates the softmodem applicatio gracefully ad goes to Liux prompt. To retur to Softmodem applicatio from the liux prompt, type tsc_1922_crlf from the root directory. +++ Escape Sequece Durig a data coectio, the escape commad (+++) returs you to Commad state without termiatig the data coectio so you ca eter AT commads. The TSC Softmodem supports the TIES (Timig Idepedet Escape Sequece) escape, ot the pateted Hayes escape. The +++ must be followed by a valid AT commad for the escape to be recogized. If a o-at commad follows the +++, the modem will retur to the data mode. Givig the TSC Softmodem a +++AT is also valid for escapig to the o-lie commad state. Rev

20 V.22 bis Liux Softmodem for 73M1x22 MicroDAA User Guide UG_1x22_ S-Registers S-Register Overview The S register set foud i the TSC Softmodem is modeled after the Hayes S-registers, but differ i may respects. The Hayes register set has evolved over time to support added features, ad the TSC Softmodem has may features ot foud i other modems. As is true for the AT commads, the Hayes format is loosely followed, but it should ot be assumed that software driver cofiguratios writte for aother modem will work without some modificatios. Closely examie the register set ad assure the commads set to the TSC Softmodem will give the iteded actios. The S-Registers allow you to customize the modem's operatio. For example, you ca use S-Registers to determie how may times the telephoe will rig before the modem aswers, how log the modem will wait for a dial toe before abortig a dialig sequece, how log the modem will pause durig a "pause" commad, ad so o. S-Registers are chaged with the S[r]=[] commad. You ca check your S-Register settigs ay time you are i Commad State. To check a S-Register settig, eter a commad cosistig of the S-Register you wat to check followed by a questio mark. For example, to check how log the modem will wait for a dial toe before abortig a call, type i the followig commad: AT S6? <Eter> The scree will display the curret settig of S-Register S6. To chage a S-Register settig, eter a commad cosistig of the S-Register, a equal (=) sig, ad the desired value (i decimal). For example, to set the modem to aswer after three rigs, type the followig commad: AT S0=3 <Eter> Note: For more details o the commads to check or modify S-Registers see the S commad uder the paragraph AT commad set. List Of S-Registers The S-Registers you ca chage with the S[r]=[] commad, or whose value you ca check with the S[r]? commad, are listed below: 20 Rev. 1.5

21 UG_1x22_043 V.22 bis Liux Softmodem for 73M1x22 MicroDAA User Guide TR30.2-Style Cotrol ad Status Registers S0 Auto Aswer Auto aswer disabled Auto aswer mode o selected umber of rigs This register specifies the rig o which the modem will aswer. A value of 1 to 255 will place the modem i auto-aswer mode ad cause it to aswer o that may rigs detected. S1 Rig Cout No valid rigs detected Whe the modem is set for Auto-Aswer, register S1 keeps track of the umber of times the phoe rigs. After the ed of rig-o time, the S1 register is reset to 0 after the sum of S56 ad S58 secods has elapsed. S2 Escape Code Character (ASCII) 43 ASCII + >127 Escape feature disabled S3 Carriage Retur Character 13 <CR> (ASCII) This character termiates both the commad lie ad the result codes. Rev

22 V.22 bis Liux Softmodem for 73M1x22 MicroDAA User Guide UG_1x22_043 S4 Lie Feed Character (ASCII) 10 <LF> 0 Suppress <LF> after the <CR> i a result code Applicable oly whe verbose mode (V1) is selected. S5 Backspace Character 8 <BS> 0 32 ad 127 (ASCII) S6 Wait Before Blid Dial Coutry selectio depedet (S99) secods 2 2 secods Whe X0, X1 or X5 mode is selected, the modem will dial after the time set i S6 has elapsed sice goig off hook. S7 Wait For Carrier After Dial secods secods The S7 register performs two fuctios. It sets the maximum time betwee dialig ad respodig to a icomig carrier sigal. It also sets the duratio of the pause geerated by the W dial strig modifier. 22 Rev. 1.5

23 UG_1x22_043 V.22 bis Liux Softmodem for 73M1x22 MicroDAA User Guide S8 Pause Time For Comma secods 2 2 secods The S8 register sets the umber of secods the modem will pause durig a pause created by a "," (comma) i the dialig sequece. The effective time will rage from (-1) to secods. S9 Carrier Detect Respose Time ms i 100 ms uit The S9 register sets how log a carrier sigal must exist before the modem issues a carrier detect respose. Note: Carrier detectio while the modem is i the o-lie state is govered by the times specified by S9 ad S10. The DCD is the carrier detect idicator. If the carrier sigal goes off, DCD goes off withi 20 ms. If the carrier returs, CD turs o withi 20 ms after the carrier has bee o cotiuously for the time specified by S9. If CD is off for the time specified by S10, the carrier is lost ad the modem hags up. If S10 is set to 255, the modem will ot hag up. S10 Lost Carrier Hag Up Delay i 100ms uit secod 255 Carrier detect status igored, o hag up The S10 register sets (i 10ths of a secod) the delay time betwee loss of carrier ad the modem hagig up. After the S10 delay time, the modem hags up ad returs to Commad State ad the modem seds the NO CARRIER respose. Rev

24 V.22 bis Liux Softmodem for 73M1x22 MicroDAA User Guide UG_1x22_043 Coutry support S99 Preset Coutry Selectio 0 CTR21 1 USA / Caada 33 Frace 34 Spai 39 Italy 44 Uited Kigdom 49 Germay 61 Australia 81 Japa 86 Chia 886 Taiwa 82 S. Korea S99 provides a easy way to set up the TSC Softmodem for differet coutries with a sigle commad. This commad sets the dial toe ad busy toe detectio parameters as well as the DTMF ad pulse timig, DCIV settigs, ad AC impedace. Normally o other commads are required to match a selected coutry s requiremets. Trasmissio levels ad detectio threshold ca be adjusted through other S registers compesate if your DAA specificatios require further chages. Sice the S99 register affects multiple registers, it should be set at the begiig of the AT strig, but ever precedig the F commad (i.e. ATFS99=1 is OK, but ot ATS99=44F) Origiate fuctios Dialig fuctios S11 DTMF To/Toff Dialig Speed Coutry selectio depedet (S99) i ms 70 To = Toff = 70 ms The S11 register sets the duratio ad spacig of touch-toes for toe dialig. (Settig this value lower tha 50 may produce iaccurate dialig.) This register does ot affect pulse dialig. 24 Rev. 1.5

25 UG_1x22_043 V.22 bis Liux Softmodem for 73M1x22 MicroDAA User Guide S12 DTMF / Twist Dial Register 32 D digit selected, 2dB twist. Selects the digit to be dialed as well as the desired twist betwee the low ad the high frequecy. For ormal operatio, oly the twist eeds to be set oce. The digit will be filled automatically. For test operatio, both the twist ad the digit must be filled. See J commad. Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 N/A Twist 2 Twist 1 Twist 0 DTMF3 DTMF2 DTMF1 DTMF0 DTMF3 DTMF2 DTMF1 DTMF0 Digit Low toe High Toe D * # A B C Twist2 Twist1 Twist0 Relative level No twist, 0 db omial low frequecy 1 db below the high frequecy toe low frequecy 2 db below the high frequecy toe low frequecy 3 db below the high frequecy toe low frequecy 4 db below the high frequecy toe low frequecy 5 db below the high frequecy toe low frequecy 6 db below the high frequecy toe low frequecy 7 db below the high frequecy toe. Rev

26 V.22 bis Liux Softmodem for 73M1x22 MicroDAA User Guide UG_1x22_043 S13 DTMF-Data / Trasmit Atteuatio 16 0dB omial for call progress ad data, +2dB omial for DTMF Atteuatio level ca go from +4.0 db to 11.0 db from omial. DTMF gai icremets have to be a miimum of 1dB, while for CP/Data the miimum is 2dB gai icremets. DTMF CP / Data Level Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Gai/Atte X db X db DTMF X db X db CP/Data X db X db X db X db X db X db X db X db X db X db X db X db S85 DTMF- DAC trasmit level coefficiet Default value. This coefficiet affect the trasmit value, thus the overall trasmit level of the DTMF toes, set to the DAC. A higher value, yet icreasig the DTMF level trasmitted, also icreases the level of sigal distortio. This coefficiet oly affects DTMF trasmissio. Refer to the Trasmit levels at 3.3V operatios applicatio ote for further details. 26 Rev. 1.5

27 UG_1x22_043 V.22 bis Liux Softmodem for 73M1x22 MicroDAA User Guide S32 Pulse Dial Make Time Coutry selectio depedet (S99) ms i ms uit S33 Pulse Dial Break Time Coutry selectio depedet (S99) N ms i ms uit S34 Pulse Dial Iter-digit Time Coutry selectio depedet (S99) N ms i 10 ms uit S72 Pulse Map \ CID cotrol \ Black Listig cotrol Coutry selectio depedet (S99) pulses for 0; D pulses for D from 1 to 9; o CID, o blacklistig Bit pulses for 0; D pulses for D from 1 to pulses for 0; 10-D pulses for D from 1 to 9 10 D+1 pulses for D from 0 to 9 Bit 2 Set user cotrol o V24 outputs (CTS, RI ) See Applicatio Notes - Bit 3 Eables CID wettig pulse through RELAY sigal Bit 4 Japaese Caller ID Off hook CID processig - Bit 5 Japaese Caller ID Marks start the CID preamble - Bit 6 Reserved Bit 7 Black Listig optio eabled Sets the relatio betwee the digit D ad the digit pulse dialed. Rev

28 V.22 bis Liux Softmodem for 73M1x22 MicroDAA User Guide UG_1x22_043 S92 Status Register 4 4 pulse dialig allowed. Bit Value Bit 0 Bit 1 Reserved Reserved Bit 2 0 Pulse dialig disabled 1 Pulse dialig eabled All others bits are reserved. S86 Flash (!) / O Time i 10 ms uit ms S87 Flash (!) / Off Time i 10 ms uit ms Note: See also S14 ad S22 S120 Accepted Aswer Toe Frequecies Eables cotrol over what the modem will qualify as aswer toe. By default, the modem fuctios as it has i the past. (Default = $35) Bit Hz V21 Marks (default) Bit Hz V23 Marks Bit Hz ITU Aswer Toe (default) Bit 3 Reserved Bit Hz Bell Aswer Toe (default) 28 Rev. 1.5

29 UG_1x22_043 Bit 5 Bit 6 Bit 7 V.22 bis Liux Softmodem for 73M1x22 MicroDAA User Guide 2250Hz S0 (default) Reserved Reserved S121 Aswer Toe Qualify Time The value of this register exteds the aswer toe qualificatio time beyod the 155ms miimum i 10ms uits , but do ot over-exted to maitai stability. Call progress fuctios S29 Exteded Result Code/ Cadece Status Coutry selectio depedet (S99) 136 See followig. A bit set to 1 selects the fuctio. Bit1/0 Bit 1/0 00 Do ot retur exteded result codes (40-80). The message CONNECT followed by the data rate betwee the DTE ad the modem will be set to the DTE (W0 commad) 01 The CONNECT message will report the DTE speed the eable the carrier ad exteded result codes (W1 commad) 10 The CONNECT message will report the DCE speed. All exteded result codes are disabled (W2 commad) 11 Coectio messages are muted Bit 2 X Reserved Bit 3 0 Escape sequece disabled 1 Escape sequece eabled Bit 4 0 Alterate cadece for dial toe 1 Dual cadece for dial toe Bit 5 0 Alterate cadece for busy toe 1 Dual cadece for busy toe Bit 6 0 Alterate cadece for rig 1 Dual cadece for busy rig Bit 7 0 Cotiuous dial toe disabled 1 Cotiuous dial toe eabled Rev

30 V.22 bis Liux Softmodem for 73M1x22 MicroDAA User Guide UG_1x22_043 S73 Cofiguratio ad Status Register 1 32 Sets differet cofiguratio. A bit set to 1 selects the fuctio. Bit 0 Bit 1 Bit 2 Bit 3 Bit 4 Bit 5 Bit 6 Bit 7 Eable teletel SEP codes i V.23 PAVI mode Low power stadby idle mode eabled Reserved Reserved Reserved CLI 125 ms AT commad delay eabled (disable this optio for faster respose time to AT commads). Adaptive dialig eabled Reserved S66 Dial Toe / Wait For Dial Toe Time i secod 8 8 secods Sets the maximum umber of secods the modem waits for dial toe. S67 Dial Toe / Qualify Dial Toe Time Coutry selectio depedet (S99) i 10 ms uit secod Sets the miimum duratio for dial toe. S35 Dial Toe / Cadece A Miimum O Time Coutry selectio depedet (S99) i 40 ms uit 0 0 ms S36 Dial Toe / Cadece A Maximum O Time Coutry selectio depedet (S99) i 40 ms uit 30 Rev. 1.5

31 UG_1x22_043 V.22 bis Liux Softmodem for 73M1x22 MicroDAA User Guide 0 0 ms S37 Dial Toe / Cadece A Miimum Off Time Coutry selectio depedet (S99) 0 0 ms i 40 ms uit S38 Dial Toe / Cadece A Maximum Off Time Coutry selectio depedet (S99) 0 0 ms i 40 ms uit S39 Dial Toe / Cadece B Miimum O Time Coutry selectio depedet (S99) 0 0 ms i 40 ms uit S40 Dial Toe / Cadece B Maximum O Time Coutry selectio depedet (S99) 0 0 ms i 40 ms uit S41 Dial Toe / Cadece B Miimum Off Time Coutry selectio depedet (S99) 0 0 ms i 40 ms uit S42 Dial Toe / Cadece B Maximum Off Time Coutry selectio depedet (S99) 0 0 ms i 40 ms uit Rev

32 V.22 bis Liux Softmodem for 73M1x22 MicroDAA User Guide UG_1x22_043 S23 Busy Detectio Cadece Cycle Cout 3 3 busy cadece cycles selected. Defies how may busy cadece cycles before sedig the busy result code. S43 Busy Toe / Cadece A Miimum O Time Coutry selectio depedet (S99) ms i 40 ms uit S44 Busy Toe / Cadece A Maximum O Time i 40 ms uit ms Coutry selectio depedet (S99) S45 Busy Toe / Cadece A Miimum Off Time i 40 ms uit ms Coutry selectio depedet (S99) S46 Busy Toe / Cadece A Maximum Off Time i 40 ms uit ms Coutry selectio depedet (S99) S47 Busy Toe / Cadece B Miimum O Time Coutry selectio depedet (S99) 0 0 ms i 40 ms uit 32 Rev. 1.5

33 UG_1x22_043 V.22 bis Liux Softmodem for 73M1x22 MicroDAA User Guide S48 Busy Toe / Cadece B Maximum O Time Coutry selectio depedet (S99) 0 0 ms i 40 ms uit S49 Busy Toe / Cadece B Miimum Off Time Coutry selectio depedet (S99) 0 0 ms i 40 ms uit S50 Busy Toe / Cadece B Maximum Off Time Coutry selectio depedet (S99) 0 0 ms i 40 ms uit S20 Call Progress Selectio Coutry selectio depedet (S99) 17 Imprecise toes detectio oly. Busy toe bits 7-4/ Dial toe bits 3-0 Bit 7/3 Bit 6/2 Bit 5/1 Bit 4/0 Fuctio Detect Imprecise toes ONLY Detect All Precise toes ONLY Detect Ay of the Precise toes. S88 Imprecise Filter Selectio Coutry selectio depedet (S99) 0 Filter Hz selected for pre ad post dialig Bits 3-0 Pre dial imprecise filter selectio (dial toe) Bits 7-4 Post dial imprecise filter selectio (busy toe) Value Frequecy rage Rev

34 V.22 bis Liux Softmodem for 73M1x22 MicroDAA User Guide UG_1x22_ Hz 680Hz 1 370Hz 500Hz 2 240Hz 580Hz 3 200Hz 650Hz 15 User defied filter S19 Precise Call Progress Selectio Coutry selectio depedet (S99) Hz ad 440Hz are dial toes; 440Hz ad 620Hz are Busy toes. Defies which precise toes costitute a dial toe ad which costitute a busy toe (related bit must be set to oe). High ibble defies dial toe ad low ibble defies busy. See also S63. Bit 0 Selectio of 350Hz as a dial toe Bit 1 Selectio of 440Hz as a dial toe Bit 2 Selectio of 480Hz as a dial toe Bit 3 Selectio of 620Hz as a dial toe Bit 4 Selectio of 350Hz as a busy toe Bit 5 Selectio of 440Hz as a busy toe Bit 6 Selectio of 480Hz as a busy toe Bit 7 Selectio of 620Hz as a busy toe S63 Precise Call Progress Detect 0 See followig. Bit 0 Bit 1 Bit 2 Bit 3 Bit 4 Bit 5 Bit 6 Bit 7 Detected f0 (350 Hz). Detected f1 (440 Hz). Detected f2 (480 Hz). Detected f3 (620 Hz). Detected 2130 Hz. Detected 2750 Hz. Busy toe detectio eabled. Call Progress filter #1 detect bit. 34 Rev. 1.5

35 UG_1x22_043 V.22 bis Liux Softmodem for 73M1x22 MicroDAA User Guide S75 Pre Dial Call Progress Imprecise Detect Level Coutry selectio depedet (S99) dBm threshold. S75 determies at what miimum level imprecise call progress toes are detected before dialig. A larger value correspods to a lower sigal level. The dbm level depeds o the DAA used. dbm0 S75-S78 dbm0 S75-S78 dbm0 S75-S78 dbm0 S75-S S76 Post Dial Call Progress Imprecise Detect Level Coutry selectio depedet (S99) dBm threshold. S76 determies at what miimum level imprecise call progress toes are detected after dialig. Refer to table uder S75. S77 Pre Dial Call Progress Precise Detect Level Coutry selectio depedet (S99) dBm threshold. S77 determies at what miimum level precise call progress toes are detected before dialig. Refer to table uder S75. Rev

36 V.22 bis Liux Softmodem for 73M1x22 MicroDAA User Guide UG_1x22_043 S78 Post Dial Call Progress Precise Detect Level 1-96 Coutry selectio depedet (S99) 30-45dBm threshold. S78 determies at what miimum level precise call progress toes are detected after dialig. Refer to table uder S75. S15 Callig Toe Off Time i 100 ms uit secod Callig toe is defied as a 1300Hz toe. See S28 / bit 7 for eablig/disablig callig toe S16 Callig Toe O Time i 10 ms uit ms Callig toe is defied as a 1300Hz toe. See S28 / bit 7 for eablig/disablig callig toe Data fuctios S30 Data Modulatio Selectio 108 See followig. Precedece is from the highest to the lowest coectio data rate. Bit Value Mode Wire mode 1 2 Bell V22bis 3 8 V Bell Bell V V23 36 Rev. 1.5

37 UG_1x22_043 V.22 bis Liux Softmodem for 73M1x22 MicroDAA User Guide S31 Data Modulatio Status 0 Default value util coectio is established Bit Value Mode 0 1 Successful 4-Wire coectio 1 2 Successful Bell 202 coectio 2 4 Successful V22bis coectio 3 8 Successful V22 coectio 4 16 Successful Bell 212 coectio 5 32 Successful Bell 103 coectio 6 64 Successful V21 coectio Successful V23 coectio S119 Wait Before Coect Allows programmable delay betwee completio of hadshake ad coect (ready for data). User should be careful; Host will have to complete delay period before trasmittig data. Settig the value at this register will affect timig for all modes. Resolutio is i 10 ms icremets. The Default delay times are as follows: QAM Aswer Mode = 200 ms PSK Aswer Mode = 770 ms PSK Origiate Mode = 770 ms FSK Origiate Mode = 300 ms NOTE: Special mode whe S119 = $FF (Default), uses same value of wait as i the past. S124 V23 Half Duplex Eable Eables half duplex pig-pog mode. (Default = 0) Bit 0 0 Selects V.23H 1200/75 bps Asymmetric Duplex mode. 1 Selects V.23H 1200 bps Half Duplex mode. Bit 1-7 Reserved Rev

38 V.22 bis Liux Softmodem for 73M1x22 MicroDAA User Guide UG_1x22_043 S25 Protocol Selectio 0 No protocol detectio selected. Modem looks for ODP/ADP o coectio. This is used whe the host does ot do the iitial protocol detectio. Bit 0 1 Discoect if o protocol is detected Bit 1 1 V42-LAPM protocol selected. This optio eables the ODP/ADP sequece detectio support withi the TSC Softmodem if ot supported by the host processor. Whe a coectio is made ad the selected protocol is detected a appropriate result code is retured: PROTOCOL: NONE or 70 PROTOCOL: LAPM or 77 If 1.5 secods after CARRIER is established, ad o protocol is detected, PROTOCOL: NONE or result code 70 will be set. S79 FSK Origiate Carrier Detect Level dBm threshold. S79 determies at what miimum level carrier is detected for origiatig FSK. A larger umber correspods to a lower sigal level threshold. S80 FSK Aswer Carrier Detect Level dBm threshold. S80 determies at what miimum level carrier is detected for aswerig FSK. A larger umber correspods to a lower sigal level threshold. S81 PSK Origiate Carrier Detect Level dBm threshold. S81 determies at what miimum level carrier is detected for origiatig PSK. A larger umber correspods to a lower sigal level threshold. 38 Rev. 1.5

39 UG_1x22_043 V.22 bis Liux Softmodem for 73M1x22 MicroDAA User Guide S82 PSK Aswer Carrier Detect Level dBm threshold. S82 determies at what miimum level carrier is detected for aswerig PSK. A larger umber correspods to a lower sigal level threshold. S83 QAM Origiate Carrier Detect Level dBm threshold. S83 determies at what miimum level carrier is detected for origiatig QAM. A larger umber correspods to a lower sigal level threshold. S84 QAM Aswer Carrier Detect Level dBm threshold. S84 determies at what miimum level carrier is detected for aswerig QAM. A larger umber correspods to a lower sigal level threshold. S117 Iactivity Timeout i secods 0 Feature disabled This register sets the Iactivity timeout for data mode. If there is o trasmitted or received data for the duratio of this timer the modem will termiate the call. Rev

40 V.22 bis Liux Softmodem for 73M1x22 MicroDAA User Guide UG_1x22_043 Black Listig fuctio S105 Pre Call attempt delay i secods 5 5 secods Delay prior attemptig a call (after a ATD commad is issued) S106 Delay betwee 1 st ad 2 d attempt i secods 5 5 secods Delay betwee 1 st ad 2 d call attempt to the same umber i a series. S107 Delay betwee N th ad N+1 th attempt i secods secods Delay betwee N th ad N+1 th call attempt to the same umber i a series. S108 Maximum successive failed attempts N i uit cosecutive failed call attempts Sets the maximum umber of successive failed call attempts allowed. 40 Rev. 1.5

41 UG_1x22_043 V.22 bis Liux Softmodem for 73M1x22 MicroDAA User Guide S109 Delay betwee series N i miutes 0 Disabled oly 1 series allowed Sets the delay before aother series of call attempts is allowed. Aswerig fuctios S123 Software Rig Detect This register cotrols the rig amplitude threshold ad selects hardware or software rig detectio. (Default = 0) Rig Amplitude Detectio Threshold. Lower value detects lower amplitude rig Bits 0-6 sigal. 1 = No frequecy checkig, eables phoex operatio Bit 7 0 = Frequecy ad amplitude checkig, ormal operatio. Special Values for S123: =0 Disable soft rig detect, use hardware rig. =255 = Auto detect phoex mode, the modem will automatically detect a user phoex system ad cofigure itself accordigly. Force soft rig detectio with frequecy qualificatio for o-phoex operatio. Recommed value of 7 (or 2 for very Low Amplitude ad Frequecy detectio). Force soft rig detectio with o frequecy qualificatio for Phoex operatio. Recommed value of 170. S17 Rig / Miimum Frequecy Detectio Coutry selectio depedet (S99) Hz i Hz Assumes a half wave detectio circuit. Note: The values eed to be doubled if a full wave detector is used. Rev