Intel 536EX manual 3.6Online Command Mode Escape Codes, On, 3.7Hanging Up Hn, S10, Zn, &D2

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3.6Online Command Mode [Escape Codes, On]

Data Mode AT COMMANDS

ATDT 9,444-5555Automatically dials the telephone number with DTMF tones. After dialing a ‘9’, the comma (,) causes the modem to pause two seconds before dialing the rest of the telephone number.

modem 1: ATD; When establishing a manual-to-manual connection, the designated

modem 2: ATA originating modem should receive the ATD command from its DTE just before the designated answering modem receives the ATA command from its DTE. It is important that the time between the ATD and ATA commands is less than 2 seconds.

AT-C1DT 123 Causes the modem to dial the telephone number 123 and immediately start sending a data calling tone. Calling tone can then be detected by the remote voice mail system. After detecting the calling tone, the remote system can change to data mode and start the data modem connection handshake.

3.6Online Command Mode [Escape Codes, On]

After establishing a connection with a remote modem, the DTE sends the appropriate escape sequence to the DCE, which causes the DCE to enter the online command mode. The online command mode is used to send AT commands to the DCE while the DCE is still connected to the remote modem. The supported escape sequences are described in Section 3.10, “AT Escape Sequences” on page 38. To re-enter the online data mode, use the ATOn command.

Example:

1

second +++

Hayes Escape Sequence. Guard times (in which the DTE does not send

1

second

data to the DCE) of 1 second are needed before and after the three

 

 

escape characters ‘+’.

+++AT<CR>

TIES (Time Independent Escape Sequence).

ATO

Causes the modem to re-enter online data mode.

3.7Hanging Up [Hn, S10, Zn, &D2]

A modem connection terminates when the modem hangs up or when the remote modem transmit carrier is off longer than the duration specified in S-register S10. To hang up, the DTE typically sends an escape code sequence that causes the DCE to enter online command mode. Upon receiving an ‘OK’ message, the DTE sends either ATH or ATZn to the DCE. When the AT&D2 command is used, the modem goes on-hook (hangs up) after an on-to-off transition of the DTR occurs.

Note: The ATZn command causes the DCE to hang up and re-initialize itself to the user profile specified by ‘n’.

3.8Modem-to-Modem Connection Data Rates

The data rates differ for each data mode selected. The 536EX chipsets either default to V.90 or V.92 mode depending on the driver version. For non-ISP connections, the chipsets fall back to V.34 mode. The modem defaults to whatever mode is issued by the +MS=m command (see the supported modulation types on Table 16 on page 35).

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536EX Chipset Developer’s Manual

Intel Confidential

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Contents 536EX Chipset Developer’s ManualJanuary Intel Confidential 536EX Chipset Developer’s ManualContents ContentsFigures Tables Revision Revision HistoryDate DescriptionIntroduction 1.1Controllerless Modem Driver OverviewUser applications Figure 1. WDM Driver Block Diagram1.1.2Windows 95 and Windows Kernel - ring0Figure 2. VxD Mini Port Driver Block Diagram 1.2V.90/V.92 and V.34 Data Modes1.3Modem Connection Overview Table 1. DTE-to-DCEData Rates for Each Mode Table 2. DCE-to-DCEData Rates for Each ModeTable 3. DCE-to-ISPData Rates for V.90 Mode 1.4.1Sending Commands Table 4. DTE-ModemData Rate Response Codes1.4.2AT Escape Sequences 1.4.3Dial ModifierAT Command Summary Tables AT Command Summary TablesTable 5. Data Mode Command Summary Table 5. Data Mode Command Summary Continued Result code type Intel Confidential Generate data mode calling tone Table 6. V.44/V.42/V.42 bis MNP Command Summary connect state, transmits Table 7. Fax Identity Command Summary Table 8. Fax Class 1 Command SummaryTable 9. IS-101Voice Command Summary Table 10. Voice DTE→DCE Character PairsTable 10. Voice DTE→DCE Character Pairs Continued Table 11. Voice DTE←DCE Character PairsTable 11. Voice DTE←DCE Character Pairs Continued Table 12. Dial ModifiersTable 13. S-RegisterSummary Table 13. S-RegisterSummary Continued Data Mode AT COMMANDS Data Mode AT COMMANDSATW0 Table 14. Data Reporting Wn MappingFigure 3. Example of a Remote Connection •ATW2Data Mode AT COMMANDS +FMFR?, +FMDL?, +FREV? 3.6Online Command Mode Escape Codes, On 3.7Hanging Up Hn, S10, Zn, &D23.8Modem-to-ModemConnection Data Rates Data Mode AT COMMANDS +VCID=1 +PMH=0+PCW=0 +++ATData Mode AT COMMANDS hook to connect the call. Now you can answer the phone and talk. After completing your voice conversation, the modem will issue another +PMHF and ATO command to initiate a Quick Connect. If the server rejects the request to go on hold, the user can stay on line ATO command issued or disconnect from his initial data connection ATH command issued Table 16. Supported Modulation Types 3.9Diagnostic Testing S18, &Tn 3.9.1Local Analog Loopback AT&T1Figure 6. Local Analog Loopback Test 3.9.2Local Analog Loopback With Self-TestAT&T8LOCAL MODEM Local Modem or Test Modem3.10.1Time-IndependentEscape Sequence Licensing Requirements for Hayes Escape Sequence<char1><char2><char3><AT command><contents of S3> Formatchar1 = char2 = char3 = escape character S2 Table 18. Data Mode Command Descriptions 3.10.2Hayes* Escape SequenceData Mode AT COMMANDS Sn=x Data Mode AT COMMANDS Intel Confidential536EX Chipset Developer’s Manual Intel Confidential AT&V0 Data Mode AT COMMANDS Command Default IndicationDefinition 1, 0, Data Mode AT COMMANDS +ESR +ETBM1, 1, +IFC +GMR+GSN +ILRR=mmodulations +MS=m <carrier>Description see ‘m’<value> +PHSW=+PMHF +PMHRData Mode AT COMMANDS Error Correction and Data Compression4 Error Correction and Data CompressionTable 19. Operating Modes Table 20. Resulting +ES Connection Types NOTESError Correction and Data Compression Intel Confidential536EX Chipset Developer’s Manual Error Correction and Data Compression +DS=m +DR=mdirection <max string>3768 +EFCS=m+ER=m +ES=m 5.2Fax Class 1 Commands Fax Class 1 AT Commands5.1Fax Identity Commands Fax Class 1 AT CommandsTable 23. <mod> Selection Table Figure 8. T.30 HDLC Frame Format Table 24. Fax Mode Command Descriptions Refer to Table 23 on page Table 24. Fax Mode Command Descriptions Continued+FRH=m shown in Table 23 on page+FTH=m IS-101Voice Mode AT Commands IS-101Voice Mode AT CommandsTable 25. Voice Mode Command Descriptions 6.1DTMF Detection Reporting6.2Relay Control +FLO=m m = <deassert>, <assert>m=<enable>, <report> +VDR=mm = <mask> +VEM=mIntel Confidential +VIP Preassigned Voice I/O Labels +VLS=mVoice I/O Primitive Codes Relay/Playback Control: cont+VRX m = <sds>, <sdi>+VSD=m m= <cml>, <vsr>, <scs>, <sel> +VSM=mTransmission: Range: Compression Method Selection: cont +VSP=mfactory default is ‘0’ +VTS=m noneDescription CommandDefault DTMF and Tone Generation: contS-Registers Table 26. S-RegisterCommand DescriptionsS-Registers Intel Confidential S-Registers536EX Chipset Developer’s Manual Intel Confidential S-Registers536EX Chipset Developer’s Manual Intel Confidential S-Registers536EX Chipset Developer’s Manual Intel Confidential Caller ID Caller IDTable 27. Caller ID Tags for Formatted Reporting <DLE> R RING DATE = TIME = NMBR = NAME = DOE JOHN MESG =RING RING NMBR =Parallel Host Interface 16C450/16C550A UART Parallel Host Interface 16C450/16C550AUART Figure 11. UART Emulation in Intelsdb.VxDUART Transmitter Flow Diagram UART Receiver Flow DiagramADDRESS REGISTERBIT NUMBER NAMEFigure 14. Scratch Register SCR 9.2.1Scratch Register SCR9.2.2Modem Status Register MSR Figure 15. Modem Status Register MSR9.2.3Line Status Register LSR Figure 16. Line Status Register LSRFigure 17. Modem Control Register MCR 9.2.4Modem Control Register MCR9.2.5Line Control Register LCR Figure 18. Line Control Register LCR9.2.6FIFO Control Register FCR RegisterFigure 19. FIFO Control Register FCR 9.2.7Interrupt Identity Register IIR Figure 20. Interrupt Identity Register IIRTable 28. Interrupt Control Functions 9.2.9Transmitter Holding Register THR 9.2.8Interrupt Enable Register IERFigure 21. Interrupt Enable Register IER Figure 22. Transmitter Holding Register THRFigure 23. Receiver Buffer Register RBR 9.2.10Receiver Buffer Register RBR9.2.11Divisor Latch Registers DLM and DLL Figure 24. Divisor Latch Registers DLM and DLL9.316C550A UART FIFO Operation 9.3.1FIFO Interrupt Mode Operation9.3.2FIFO Polled Mode Operation Intel Confidential Parallel Host Interface 16C450/16C550A UART536EX Chipset Developer’s Manual
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