Technics MT5634SMI-92, MT5634SMI-34 manual Data Terminal Ready DTR Control, XON/XOFF Pacing Control

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Chapter 5 – AT Commands, S-Registers, and Result Codes

Command:

&Dn

Data Terminal Ready (DTR) Control

Values:

 

n = 0, 1, 2, or 3

Default:

 

2

 

Description:

 

&D0

Modem ignores the true status of the DTR signal and responds as if it is always on.

 

 

&D1

If DTR drops while in online data mode, the modem enters command mode, issues

 

 

 

an OK, and remains connected.

 

 

&D2

If DTR drops while in online data mode, the modem hangs up. If the signal is not

 

 

 

present, the modem will not answer or dial.

 

 

&D3

If DTR drops, the modem hangs up and resets as if an ATZ command were issued.

Command:

&En

XON/XOFF Pacing Control

Values:

 

n = 12 or 13

Default:

 

12

 

Description:

 

&E12

Disables XON/XOFF pacing.

 

 

&E13

Enables XON/XOFF pacing.

Command:

&Fn

Load Factory Settings

Values:

 

n = 0

 

Default:

 

None

 

Description:

 

&F0

Load factory settings as active configuration.

 

 

Note: See also the Z command.

Command:

&Gn

V.22bis Guard Tone Control

Values:

 

n = 0, 1, or 2

Default:

 

0

 

Description:

 

&G0

Disable guard tone.

 

 

&G1

Set guard tone to 550 Hz.

 

 

&G2

Set guard tone to 1800 Hz.

Note: The &G command is not used in North America.

Command:

&Kn

Flow Control Selection

Values:

 

n = 0, 3, or 4

Defaults:

 

3

 

Description:

 

&K0

Disable flow control.

 

 

&K3

Enable CTS/RTS hardware flow control.

 

 

&K4

Enable XON/XOFF software flow control.

Command:

&Ln

Leased Line Operation

Values:

 

n = 0, 1, or 2

Defaults:

 

0

 

Description:

 

&L0

The modem is set for standard dial-up operation.

 

 

&L1

The modem is set for leased line operation in originate mode.

 

 

&L2

The modem is set for leased line operation in answer mode.

 

 

Note: For &L1 and &L2, there is a 30-second window between power up and the starting of

 

 

 

the leased line handshake. During this time, you can turn off the command, if desired.

Command:

&Pn

Pulse Dial Make-to-Break Ratio Selection

Values:

 

n = 0, 1, or 2

Default:

 

0

 

Description:

 

&P0

60/40 make-to-break ratio

 

 

&P1

67/33 make-to-break ratio

 

 

&P2

20 pulses per second

 

 

Note: The &P2 command is available only if the country code is set to Japan.

Command:

&Qn

Asynchronous Communications Mode

Values:

 

n = 0, 5, 6, 8, or 9

Default:

 

5

 

Description:

 

&Q0

Asynchronous with data buffering. Same as \N0.

 

 

&Q5

Error control with data buffering. Same as \N3.

 

 

&Q6

Asynchronous with data buffering. Same as \N0.

 

 

&Q8

MNP error control mode. If MNP error control is not established, the modem falls back

 

 

 

according to the setting in S36.

 

 

&Q9

V.42 or MNP error control mode. If neither error control is established, the modem

 

 

 

falls back according to the setting in S36.

SocketModem Global MT5634SMI Developer’s Guide

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Contents MT5634SMI-34 MT5634SMI-92 Revisions Table of Contents Multi-Tech’s Flash Programming Protocol Appendix C Country Configuration and Result Codes Index Introduction Product Description SpecificationsProduct Description Features Matrix MT5634SMITechnical Specifications and Features TIA/EIA TR29.2MT5634SMI-IT-92 Industrial Temperature 3.3V Build Option StandardMechanical Specifications Physical Dimensions All ModelsPin # Signal Name I/O Type Description Pin ConfigurationsDigital Ground Tip Signal from Telco Ring Signal from TelcoActive High DCD status Active High RDX statusPin # Signal Description Name Dgnd GNDINT VCC PWRElectrical Characteristics Electrical CharacteristicsHandling Precautions Timing RequirementsTiming Requirements for Parallel Write Timing Requirements for Parallel ReadSocketModem Parallel Interface Internal Registers SocketModem Parallel Interface a Programmer’s DescriptionSocketModem Mimic MMM Operation Register Name Register Description Host Access Time Out Interrupts Register Functional DescriptionsInternal Registers Special Register Set Note *2IER Interrupt Enable Bit Priority Interrupt Source Interrupt Reset ControlRBR Receive Buffer RX Fifo THR Transmit Holding Register TX FifoLCR Line Control FCR Fifo ControlMCR Modem Control LSR Line Status MSR Modem StatusSCR Scratch DLL Divisor Latch LSByteDLM Divisor Latch MSByte Baud Rate Clock Divisor Decimal DLM Value HEX DLL Value HEXAT Commands, S-Registers Result Codes AT Command SummaryModulation Handshake Set Register ValueAT Commands Enter KeyDial string modifiers DS= y Dial Stored Telephone NumberReturn Online to Data Mode Sr= n Set Register Value Sr?XON/XOFF Pacing Control \An Select Maximum MNP Block Size Zy=x Store Dialing Command\Bn Transmit Break \Nn Error Correction Mode Selection \Tn Inactivity Timer\Kn Break Control Data mode. The modem receives the break from the computerDCn AT Command Control \Xn XON/XOFF Pass-Through$RPn Ring Priority vs. AT Command Priority $Dn DTR Dialing$EBn Asynchronous Word Length $MBn Online BPS Speed#CBDn Callback Delay Callback Failed Attempts Reset#CBIn Local Callback Inactivity Timer #CBNy=x Store Callback PasswordEscape AT Commands Commands +MS= Modulation SelectionSubparameters Modulation Possible rates bps1+PCW=n Call Waiting Enable +PMH=n Modem on Hold EnableMod value Valid maxrate values bps +PIG=n PCM Upstream Ignore+PMHF V.92 Modem Hook Flash +PMHT=n Modem on Hold Timer+PMHR=n Modem on Hold Initiate +PQC=n Quick Connect Control +VCID=n Caller ID Selection#Sx Enter Setup Password #S=x Store Setup PasswordRegister Unit Range Default Description RegistersS38 S48=7 S48=128Result Codes Terse Verbose Description111 Voice Commands Commands That Change for Voice Mode Support Voice CommandsVoice S-Register Summary Voice +V Commands Summary Voice +V Commands DetailCommand Description +FCLASS= mode Enter Select Modem Operating ModeAT+FCLASS=? Enter Display Service Class Capabilities Touch Tone Signals Digit Low frequency High frequency+FCLASS=8 Dtmf Detect Detect and Control Dtmf +VNH=hookEnter Automatic Hang-Up Control +FMI?Enter Report Manufacturers ID+FMM?Enter Report Product ID +FMR?Enter Report Version Level+VTS=string Produce Dtmf and Tone Generation in Voice Mode Enter Voice Receive State+VTS=? Report Frequency Support AT+VTS=?Start Voice Transmission Process +VGR=gain Set the Gain for Received Voice Samples+VGT=level Set the Volume for Transmitted Voice Samples +VIT=timer Set DTE/DCE Inactivity Timer+VLS=label Select Analog Source/Destination Code Description+VRA=interval Set Ring Back Goes Away Timer +VSD=sds,sdi Set Silence Detection Sensitivity +VRN=interval Set Ring Back Never Appeared Timer+VSM=cml,vsr,scs,sel Select Voice Compression Method AT+VSM=? +VSM=? Report Voice Compression MethodIdentifier Description +VDT=enable,report Control Tone Cadence Reporting Enable Report DescriptionLsltcq +VEM=mask Event Reporting and Masking +VEM=? Report Event Reporting and Masking CapabilitiesInterface Configuration Commands +VPP=enable Enable or Disable Voice Mode Packet Protocol+VBT=? Report Modem Flow Control Assert and Deassert Points AT+VBT=?Flow Control Voice Mode Result Codes+VPR=rate Select DTE/DCE Interface Rate Turn Off Autobaud Valid Complex Event Report Tags Unsolicited Voice Mode Result CodesTag Description Voice Mode Shielded Codes Shielded Code Hex Event Report DescriptionAscii Sample Sessions Command ResponseSample Rate Selection and Suggested Compression Method AT+VLS=4 AT+VTXDLE ETX AT+VLS=0AT+VLS=2 AT+VRXDLE NUL AT+VNH=1Related Manuals DTE/DCE Interface RatesAdditional Information Fax Commands Remote Configuration Country Code Configuration Remote ConfigurationBasic Procedure SetupCountry Code Configuration Using the Global Wizard UtilityUsing AT Commands Country AT Command Result Code Hexadecimal DecimalUpgrade Overview Firmware Upgrade ProcedureUpgrade Steps Download the Upgrade File Install the Flash WizardExtract the Firmware Upgrade .Hex Files Identify the Current Version of the FirmwareUsing the Flash Wizard Upgrade the Modem’s FirmwareRestore Your Parameters Multi-Tech Systems, Inc. Flash Programming Protocol Programming the ModemModem Comments Handshake SequenceOther Programming Concerns Other Supported Boot Code CommandsATI4 Intel Hex Format Data Record Char Pos Field Type Value DescriptionExample Extended Address Record in Intel Format End of File Record Char Pos Field Type Value DescriptionExample End of File in Intel Format Appendix a Mechanical Details Serial Test/Demo Board ComponentsSerial Test/Demo Board Block Diagram 5V / 3.3V Jumper JP1Address/COM Port/ IRQ Select Jumpers JP2 and JP3 Parallel Test/Demo Board ComponentsOperating Voltage Select Jumper JP4 Parallel Test/Demo Board Block Diagram Figure A-4. Parallel Test/Demo Board Block DiagramSafety and EMC Approvals Telecom ApprovalsRegulatory Design Considerations Hardware ConsiderationsSafety 5V Tolerant Inputs for 3.3V Modules FCC Part 15 Regulation Industry CanadaFCC Part 68 Telecom Telecom Labeling RequirementsFrom FCC Part 68 Subpart D Conditions for Registration ReregistrationFax Branding Statement Canadian Limitations NoticeEMC, Safety, and R&TTE Directive Compliance Industry Canada CS-03International Modem Restrictions Multiple ListingNew Zealand Telecom Warning Notice South African NoticeAppendix C Country Configuration Result Codes Country Country Config. hex ATI9 ResponseAppendix C Country Configuration and Result Codes Appendix C Country Configuration and Result Codes Appendix C Country Configuration and Result Codes Page Index Index Index Index
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