Manuals / Silicon Laboratories / Computer Equipment / Modem

Silicon Laboratories SI2494/39, SI2493/57/34/15/04 manual Example of Epos Server Misbehavior

Models: SI2493/57/34/15/04 SI2494/39

1 304

Download 304 pages 21.65 Kb

Page 287

AN93

The Answer Tone is too short at 400 ms.

Innocent, answer modem generated, guard tone.

Figure 70. Example of EPOS Server Misbehavior

Rev. 1.3

287

Image 287

Silicon Laboratories SI2494/39, SI2493/57/34/15/04 manual Example of Epos Server Misbehavior

Contents

Introduction Functional Block DiagramAN93 Table of Contents AN93 AN93 AN93 AN93 Document Change List Contact Information Protocol Function Si2494/93 Si2457 Si2439/34 Si2415 Si2404 Selection GuideModulations ProtocolsPart Numbers Package Carriers and TonesISOmodem Capabilities ReleaseModem System-Side Device Resetting the DeviceReset Sequence Reset Strapping General Considerations Reset-Strap Options for 24-Pin Tssop Package SOIC-16 Reset-Strap OptionsReset-Strap Options for 16-Pin Soic Package Mode Reset-Strap Pins Interface Input Clock Pin 5, RXD/MISOTSSOP-24 Parallel-Interface Options TSSOP-24 UART-Interface OptionsTSSOP-24 SPI-Interface Clock-Frequency Options Reset Strapping Options for QFN Parts with Uart OperationInput Clk Reset Strapping Options for QFN parts with SPI OperationSystem Interface Pin Functions vs. Interface Mode SOIC-16Pin Functions vs. Interface Mode TSSOP-24 Pin Functions vs. Interface Mode QFN-38 Parallel-Interface Signals UART-Interface SignalsSPI-Interface Signals DTE Rates Ideal DTE Rate bps Actual DTE Rate bps Approximate Error%Flow Control Serial Formats Detected in Autobaud ModeSymbol Data bits Parity Stop bits OCD Can MonitorU70 Bit Function PPDParallel and SPI Interface Operation Uart Serial InterfaceTX Fifo Hardware Interface Register Hardware Interface Register Bit MapParallel Interface Operation Parallel Interface SignalsSignal Function Direction Parallel Interface Read Timing Interface Communication Modes Bit Function Meaning when High Meaning when LowSPI Control-and-Address Bit Definitions SPI Interface OperationSleep Mode Low-Power ModesPower-Down Mode Wake-on-Ring ModeSSI Interface Pin Connection SSI/Voice Mode 24-Pin Tssop and 38-Pin QFN OnlySignal Pin Number TSSOP-24 QFN-38 Clkout Fsync SDI SDO ResetEeprom Timing Eeprom CommandsEeprom Interface 24-Pin Tssop and 38-Pin QFN Only Eeprom Status Register Any Other Bits are UnusedEcsh Eecs Parameter Symbol Min Typ Max UnitEOZ Eeprom Three-Wire SPI Interface to EepromBoot Commands Custom Defaults Detailed Eeprom ExamplesBoot Command Example AT Command Macros Customized AT CommandsFirmware Upgrades Autoloading Firmware Upgrade Example AT Command Macro ExampleCombination Example Command FunctionCombination Example Dec Hex Display Ascii ChartDAA Line-Side Device Hookswitch and DC TerminationPulse Dialing and Spark Quenching AC Termination Settings for the Si3018 Line-Side DeviceAC Termination Ringer Impedance and ThresholdTypical Loop Voltage LVS Transfer Function LVCS40 Condition Ilim =Loop Current Transfer Function Billing Tone Detection Legacy-Mode Line Voltage and Loop Current MeasurementComponent Functions Power Supply and Bias CircuitryHookswitch and DC Termination Hardware Design ReferenceOptional Billing-Tone Filter Ringer NetworkTIP From Line Ring DAA Symbol ValueEMI/EMC Si3018/10 Schematic SchematicComponent Value Suppliers Bill of MaterialsLayout Guidelines Reference Placement Layout Items Required Layout ChecklistISOmodem Layout Check List AN93 Motherboard Design Module Design and Application ConsiderationsModule Design Analog Output Modem Module VCC and Reset FilterAudio Quality Audio Filter ResponseController Modem Reference GuideDSP AT Command SetConfiguration Status Command ActionCommand Result Command ExamplesMultiple AT Commands on a Single Line Command Result CommentConsecutive U-Register Writes on a Single Line Basic AT Command SetATI0 ATI1 EnableNo Patch AT Command Chip Revision ModifierATI0 AT Command Chip RevisionRevision B Patch rbpXYYYY Revision C Patch rcpXYYYYSpeaker is always off Enable result codes See TableCommand Action Verbal result codes Program RAM write this command is used to upload firmware +DRV42B RD Disabled+DR=X +DRNONEC,D Specifies the mode of operation when initiating a modemConnection = Disable synchronous access mode Specifies the mode of operation when answer a modemDuring transparent sub-mode = CRC generation checking disable= Nrzi encoding and decoding disabled Specifies action taken if an underrun condition occursClass 1 Transmit Carrier Country United States defaultBPS +GCI?Fixed DTE Rate Automatically detect the baud rateITU-T V.90 default for Si2457 V22B ITU-T V.22bis default for Si2404V32B ITU-T V.32bis default for Si2415 ITU-T V.34 default for Si2434+PQC=X Enable Short Phase 1 and Short Phase+PMHR=X +PMHT=XDistinctive Ring DCEs decide to use short startup procedures= After ring only = OffISOmodem on-hook. Aout disabled. Tone detec Command Action Transmit Gain SelectionLoad Voice Factory Defaults DTE/DCE Inactivity TimerIs five seconds Ringing Tone Goes Away TimerRinging Tone Never Appeared Timer OK result code. Default time is 0 secondsSigned PCM Speakerphone AEC, AES and LEC disabledDtmf / Tone Duration Timer Voice Compression MethodKbps max default for Si2457 transmit and Si2434 Extended AT CommandsExtended AT& Command Set Kbps max default for Si2415Only 56 kbps to 28 kbps TIP + Disable automatic line-in-use detection Extended AT% Command SetEnable V.42bis in transmit and receive paths ISOmodem answers a call in answer modeMode is not allowed with a parallel or SPI interface Extended AT\ Command Set\Q2 Use CTS only \P0 Even\V0 Report connect and protocol message \T9 Kbps4\T16 Autobaud On4 Numeric1 Meaning Verbal Response Result CodesProtocol None StasPolarity Reversal No Polarity ReversalUN-OBTAINABLE Number ALTERNATE, +CLASSDisconnect Code Reason Disconnect CodesAscii Definition Register Function Default Range Units DecimalRegisters Register DescriptionsAll spaces 0s Symbol Rate Allowable Data Rates 2400 Symbols/secondRegister Address Name Description Default Hex DT4B2 U0FDT4A0 DT4B1Bdlt U2EBmtt U2FFHT U4EPrdd U4FSC0 V9AGGSamco SasfRegister Summary Bit-Mapped U-Register Summary2. U00-U16 Dial Tone Detect Filter Registers Register Name Description DefaultU0-U16 Dial Tone Registers 3. U17-U30 Busy Tone Detect Filter Registers U17-U30 Busy Tone Detect Registers320/630 310/510 Default Busy and Dial ToneBPF Biquad Stage Output Scalar 300/480400/440 BPF Biquad Values5. U34-U35 Dial Tone Timing Register Ringback Cadence RegistersDial Tone Timing Register 4. U31-U33 Ringback Cadence Registers7. U46-U48 Dtmf Dial Registers Pulse Dial RegistersDtmf Dial Registers 9. U4D Modem Control Register 1-MOD1 Ring Detect Registers8. U49-U4C Ring Detect Registers Register U4D Bit Map Transmit Level Register Pre-Dial Delay Timer RegisterFlash Hook Time Register Loop Current Debounce RegistersU62 Bit Map U53 Bit MapU54 Bit Map U65 Bit Map U63 Bit Map= Normal operation Line-Side Chip Power Down17. U67-U6A International Configuration Registers PDLU67 Bit Map U66 Bit MapU68 Bit Map 19. U6E-U7D Modem Control and Interface Registers U6A Bit MapU6C Bit Map 18. U6C Line-Voltage Status RegisterPtmr U6E Bit MapU6F Bit Map U70 Bit Map Function 155 Reserved Read returns zero Type Reset settings = BitDisables PCM mode Enables PCM mode U71 IO1 Bit D15 D14 D13 D12 D11 D10 NameU77 Bit Map U76 Bit MapU79 Bit Map Monitor Mode ValuesU78 Bit Map Adaptive Dialing U7A Bit Map= Normal Atdtw operation Given time Synchronous Mode= Normal asynchronous mode Pin indicates valid ring signal20. U80 Transmit Delay for V.22 Fast Connect = Disables No Loop Current Detect= Timed calibration disabled = ATZ enabledFramed Sub-Mode Startup Special Error Reporting Mode= Ignore unrecognized in-band commands Minimal TransparencyFirmware Upgrades Method Patch, 115 kbaud Uart Lines Reset, thenEscape Methods Load Technique and Speed TableEscape Pin Escape 1. +++ EscapeTh Bit Escape To Enable Use AT Commands Error CorrectionWire Mode Enabling Error Correction/Data CompressionEpos Electronic Point of Sale Applications Legacy Synchronous DCE Mode/V.80 Synchronous Access Mode15. V.80 Mode Synchronous Mode OverviewAT\N0 Synchronous Access Mode SettingsCRC Command Hex Supported Transmit Direction Receive DirectionIndicator pair Code Transparent Submode EM In-Band Commands and Statuses Code Transparent Submode Fast Connect SettingsCommand Supported Transmit Direction Receive DirectionATDT12345 Connect 1200 Protocol None 0x190x190x110x11 Quick Reference Modem Feature vs. Hardware, AT Command and Register SettingFunction/Feature AT Commands Registers Programming ExamplesReg Bit Val Function Country-Dependent SetupDC Termination Control Bits DC TerminationCountry Initialization Country ConfigurationCountry Initialization Table Country Initialization TableAT+GCI=9C AT+GCI=AAT+GCI=F AT+GCI=16AT+GCI=6C AT+GCI=26AT+GCI=27 AT+GCI=31AT+GCI=42 AT+GCI=3CAT+GCI=3D AT+GCI=58 AT+GCI=46AT+GCI=53 AT+GCI=57AT+GCI=9F AT+GCI=59AT+GCI=0 AT+GCI=61AT+GCI=7B AT+GCI=69AT+GCI=87 AT+GCI=7EAT+GCI=82 AT+GCI=89AT+GCI=A0 AT+GCI=B8UAE AT+GCI=A5AT+GCI=A6 AT+GCI=FEAT+GCI=B4 International Call Progress Registers Line Interface/Control Registers Dial RegistersS42 Blacklisting AT Command FunctionSpecial Requirements for Serbia and Montenegro BlacklistingCaller ID Modes Caller IDProtocol SMS CommandsSMS Support Japan Caller ID150 Johndoe Type II Caller ID/SAS DetectionMdmf Parameters Character Description Hexadecimal Value Ascii ValueSAS Cadence for Supported Countries SAS Tone FrequencyAustria Country Tone Frequency Hz Cadence seconds RegistersAruba AustraliaCzech Republic Country Tone Frequency Hz Cadence seconds Registers ChinaCroatia CyprusHong Kong GreeceGuyana HondurasJordan IsraelJapan 064 0.436Lithuania KiribatiKorea Republic Lao P.D.RParaguay NigeriaOman Papua New GuineaSaudi Arabia Country Tone Frequency Hz Cadence seconds Registers RussiaSt.-Kitts-and-Nevis St. LuciaTobago SwedenTajikistan TrinidadLoop Voltage Action Intrusion/Parallel Phone DetectionOn-Hook Condition Line Not Present/In Use Indication Method 1-FixedOff-Hook Condition Line Not Present/In Use Indication Method 2-AdaptiveATH1 Intrusion DetectionRegister Bits Name Function Value Description Possible Responses to Pmhr Command from Remote ModemModem-On-Hold Initiating Modem-On-HoldReceiving Modem-On-Hold Requests Hdlc Bit Errors on a Noisy LineBeginning of Packet Bit ErrorsDCE Data Meaning Bit Errors0D 0A 4E 4F 20 43 52 49 45 52 0D 0A Register Bit Value Function Overcurrent DetectionPulse/Tone Dial Decision Overcurrent DetectionAutomatic Phone Line Configuration 12. V.92 Quick Connect Telephone Voting ModePossible +PMHT Settings AT+PSS Parameters AT+PQC ParametersSoftware Reference Extended AT+ Command SetHandset, TAM, and Speakerphone Operation Distinctive Ring Cadence Reporting Command Action Caller ID TypeCaller ID Enable After ring onlyCommand Action Analog Source / Destination Selection Compression Selection Method Command Action Ringing Tone Never Appeared TimerSpeakerphone AEC, AES and LEC disabled. Handset FIR filter +VTS command. Default time is 1 second dur =Transmit Voice Stream Command Action Dtmf and Tone GenerationFormat DLECode DLE Commands DTE-to-DCEDLE Commands DTE-to-DCE Code Hex Simple Action Command DescriptionSUB DLE Simple Events DCE-to-DTEDLE Events DCE-to-DTE Simple Event Reporting Code Hex Description180 Format DLEXResponseDLE Description Voice Mode U Registers AddressDescription Default Complex Event ReportingRegister Address Name Description Default Voice Mode U RegistersHRXFIR4 HRXFIR1HRXFIR2 HRXFIR3STXFIR4 STXFIR1STXFIR2 STXFIR3SRXFIR4 SRXFIR1SRXFIR2 SRXFIR3U199 Bit Definitions U19EVoice Reference-Overview TAM, Handset, and Speakerphone Voice Paths Rev 189 +VTX +VRX +VSP +VTS Voice Mode Operations +FCLASS=8ATZ or Input Current Modem Settings Command orEvent +VNH = ATH or DTR off &D2Si3000 Configuration TAM Pstn System Voice ModesInitialization Sequence InitializationRev 195 Overview Handset ConfigurationHandset AT+VSP=0 AT+VLS=0AT+VLS=13 Handset Automatic Pulse Dial Handset Automatic Tone DialHandset Manual Off-Hook Dial AT+VLS=14 Handset to TAM Hands-Free TransitionTerminate AT+VSP=1 Handset to Speakerphone TransitionSpeakerphone Transition NAME=JONES Jennifer Telephone Answering MachineLocal Ring Notification with Type I CID Event AT+VRX Connect TAM Hands-Free Record OGMRecord OGM ATU199&FFFDReview ICM TAM Hands-Free Review OGMReview OGM Record Local ICMTAM Handset Record OGM Trigger receive operation. The first byte TAM Handset Review OGM AT+VSM=4 Normal Answer OGM Playback with ICM Record TAM Pstn Normal Answer OGM Playback with ICM RecordICM AT+VLS=15Interrupted Answer OGM Playback with Dtmf Menu Entry DLE1 Dtmf 1 digit detected Simplex Speakerphone SpeakerphoneExternal Microphone/Speaker Calibration Register Name Description Default ValueTransmit Gain Calibration-Speakerphone Disabled Simplex Speakerphone U RegistersTransmit Gain Configuration AT+FCLASS=8 Transmit/Receive Gain Calibration Dial Remote TelephoneReceive Gain Reference Measurements Receive Gain ConfigurationReg Name Bit U19E Speakerphone Calibration-AEC Gain CalibrationAEC Gain Calibration Dial Remote Telephone Speakerphone Configuration Speakerphone ConfigurationSimplex Speakerphone Configuration Call-Automatic Tone Dial Simplex Speakerphone ConfigurationSpeakerphone Automatic Tone Dial Speakerphone Manual Off-Hook DialCall-Automatic Pulse Dial Speakerphone Automatic Pulse DialSpeakerphone to Handset Transition Termination GlossaryReferences Implementing the SIA Protocol Security ProtocolsAT+F0 Considerations when Disconnecting the SessionAT+F4 AT+F1AT+F2 AT+F3Result Code Meaning Remarks Implementing the Ademco Contact ID Protocol Kissoff Ademco Contact ID Protocol Tone Transmission AT CommandsDtmf Digit Low Tone Hz High Tone Hz Contact ID AT Command Modem Specific Implementation DetailsEvent Modem-to-DTE indication Remarks Ademco Mode of OperationStep DTE-to-Modem Command Modem-to-DTE Remarks Indication Handshake Tone DetectionMessage Delay 250 ms before transmitting Data TonesWait for Receiver to answer with handshake tones ATH Wait for Kissoff toneRev 233 SMS Message Format Chinese ePOS SMS+FCLASS=256 SMS AT Command SetAT Commands for SMS AT Command ISOmodem Response DescriptionSMS User Registers Register Bits Name Description Default Hex= Auto Mode User Registers for SMS OperationsCrlfconnect Crlf ProcedureExample Connect 2CRLF ResponseDleetxcrlfno Carriercrlf Connect 1CRLFDleetxcrlfokcrlf Example SessionPOS SMS Process in Host and Modem Prototype Bring-Up Si3018/10 Testing and DiagnosticsHost Interface Troubleshooting  Inappropriate Commands Command Timing  Register Configurations Connect Evaluation Board to Prototype System Isolation Capacitor Troubleshooting10.1.6. Si3018/10 Troubleshooting Component TroubleshootingEVB Test the Host InterfaceTest the Prototype Si3018/10 Circuitry Si3018/10 Resistance Si3018/10 Typical Voltages Resistance to Si3018/10 PinComponent Voltage Resistance across ComponentsVoltages across Components with Diode Checker FB1 FB2 RV1Loop Test Circuit Self TestBell 103-V.34 Modem Functional Test Connection Board TestTest Coverage Teltone ILSIsdn Modem Modem Under TestAT Command/Test Method Desired Response Compliance TestingAT Commands for Compliance Testing Transmit Modulation Data Rate Symbol/Data RateS41 Symbol Rate Allowable Data Rates 29 Data RateSurges SafetyPublished Coilcraft TRF-RJ11 Filter Performance AM-Band InterferenceDebugging the DTE Interface Debugging the DTE interfaceModulation Appendix A-EPOS ApplicationsRecommendation 0xFF 0x19 0xA0 0x19 0xB1 ISOmodem V.80 Protocol Hdlc Framing in Framed Sub-Mode ISOmodem in Epos ApplicationsAT+FCLASS=1 Setup procedure29 FastPOS Sample Program AT&D2Example Program in C/C++ How to use the programRev 263 264 Rev 265 True Rev 267 = Rtscontrolenable Rev 269 270 FastPOS Detailed Wave Files RTS not RTS signalFastPOS DTE Trace Hardware Setup When to Use Audio RecordingTimes When Audio Recording May Not Help Larger of the two jacks 3.5 mm carries audio to the PC Setting PC Microphone Input for Recording Windows NTSounds and Multimedia Properties Setting PC Microphone Input for Recording WindowsMultimedia Properties Setting PC Microphone Input for Recording Windows XPSounds and Audio Devices Properties Sound Recorder Making the Recording with Adobe Audition or WaveSurferAdobe Audition Temporal View of a Good V.22 Transaction Audio Playback and AnalysisAdobe Audition Spectral View of a Good V.22 Transaction Band Spectral Display Recording Made at Excessive Level Audio-Recording PitfallsAppearance of Bell 212 Protocol Details of Some Low-Speed ProtocolsAppearance of V.22 bis Protocol Appearance of V.29 FastPOS Protocol Examples of Epos Server Misbehavior Example of Epos Server Misbehavior Dtmf Distorted by Low Line Level Examples of Line ImpairmentsPower Line Related Noise Appendix C-PARALLEL/SPI Interface Software Implementation MCU  MCUhardware.c  modemhardware.c Hardware Access LayerInterrupt Service and Polling Layer Software DescriptionRXF Interrupt Receive Fifo Almost Full Interrupt Service Routine ISR MethodPolling HIR1 Method U70 Interrupt Timer Interrupt Receive Fifo Not EmptyTXE Interrupt Transmit Fifo Almost Empty Parallel- or SPI-Port Interrupt-Service Flowchart Buffer Management Buffer Management, Status and Control LayerCircular-Buffer Flowchart Status and Control Application Layer Sample ApplicationData Bursts Compiler Option Dot CommandsModem Operation Making a ConnectionSfrpagesave = Sfrpage Modem Interrupt Service Sample CodeRev 301 302 Revision 0.8 to Revision Revision 0.5 to RevisionRevision 0.6 to Revision Revision 0.7 to RevisionContact Information