Data Mode AT COMMANDS | Intel 536EX instruction

Data Mode AT COMMANDS

Data Mode AT COMMANDS

3

The 536EX chipsets implement:

•Standard Hayes*-compatible AT commands and S-registers in data mode

•Standard EIA/TIA-578 AT commands in Class 1 fax mode

•Additional AT command sets for error correction, data compression and voice mode

In data mode, the AT commands configure the DCE (modem) to establish a connection with a remote data modem. In data mode, the 536EX chipsets execute the AT commands for error correction (MNP 2-4, V.42) and data compression (MNP 5, V.42 bis) described in Table 21 on page 57, as well as the fax and voice mode commands AT+FCLASS=1 (fax) and AT+FCLASS=8 (voice).

3.1Using AT Commands to Access the S-Registers [Sn?, Sn=x, ?]

The DTE can access the S-registers through the ATSn?, ATSn=x, and ? commands. For example, to configure the modem to automatically answer a data modem call after two rings, type ATS0=2.

Examples:

ATS0=2	Configures S-register				S0	to	‘2’
ATS0?	Reads	the	contents	of	S-register S0
ATS0=	Configures S-register				S0	to	‘0’
AT?	Reads	the	contents	of	the last accessed (read or write) S-register

3.2Modem Responses and Command Echo [En, Vn, Xn, Wn, Qn]

The ATEn command configures the DCE to send back to the DTE any data that the DTE sent to the DCE while in command mode. The ATVn command sets the DCE response codes to either text or numeric form. For example, upon successfully processing an AT command string, the DCE sends an ‘OK’ (text) or a ‘0’ (numeric) to the DTE.

Examples:

	Modem Setup	Host	Modem Response
	Modem Setup	Command	Modem Response
		Command

	Echo, Numeric (E1, V0)	AT<CR>	AT<CR>0<CR>

		ATS0?<CR>	ATS0?<CR>000<CR><LF>0<CR>

	Echo, Text (E1, V1)	AT<CR>	AT<CR><CR><LF> OK<CR><LF>

		ATS0?<CR>	ATS0?<CR><CR><LF>000<CR><LF><CR>
			<LF>OK<CR><LF>

26	536EX Chipset Developer’s Manual

Intel Confidential

Image 26

Intel 536EX manual Data Mode AT COMMANDS

Contents

January 536EX ChipsetDeveloper’s Manual Intel Confidential 536EX Chipset Developer’s Manual Contents Contents Figures Tables Revision Revision HistoryDate Description Introduction 1.1Controllerless Modem Driver Overview User applications Figure 1. WDM Driver Block Diagram1.1.2Windows 95 and Windows Kernel - ring0 Figure 2. VxD Mini Port Driver Block Diagram 1.2V.90/V.92 and V.34 Data Modes 1.3Modem Connection Overview Table 3. DCE-to-ISPData Rates for V.90 Mode Table 1. DTE-to-DCEData Rates for Each ModeTable 2. DCE-to-DCEData Rates for Each Mode 1.4.1Sending Commands Table 4. DTE-ModemData Rate Response Codes 1.4.2AT Escape Sequences 1.4.3Dial Modifier Table 5. Data Mode Command Summary AT Command Summary TablesAT Command Summary Tables 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 Summary Table 9. IS-101Voice Command Summary Table 10. Voice DTE→DCE Character Pairs Table 10. Voice DTE→DCE Character Pairs Continued Table 11. Voice DTE←DCE Character Pairs Table 13. S-RegisterSummary Table 11. Voice DTE←DCE Character Pairs ContinuedTable 12. Dial Modifiers Table 13. S-RegisterSummary Continued Data Mode AT COMMANDS Data Mode AT COMMANDS ATW0 Table 14. Data Reporting Wn MappingFigure 3. Example of a Remote Connection •ATW2 Examples +FMFR?, +FMDL?, +FREV? 3.8Modem-to-ModemConnection Data Rates 3.6Online Command Mode Escape Codes, On3.7Hanging Up Hn, S10, Zn, &D2 536EX Chipset Developer’s Manual +VCID=1 +PMH=0+PCW=0 +++AT 536EX Chipset Developer’s Manual 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&T1 Figure 6. Local Analog Loopback Test 3.9.2Local Analog Loopback With Self-TestAT&T8LOCAL MODEM Local Modem or Test Modem 3.10.1Time-IndependentEscape Sequence Licensing Requirements for Hayes Escape Sequence char1 = char2 = char3 = escape character S2 <char1><char2><char3><AT command><contents of S3>Format Table 18. Data Mode Command Descriptions 3.10.2Hayes* Escape Sequence 536EX Chipset Developer’s Manual Sn=x 536EX Chipset Developer’s Manual Data Mode AT COMMANDSIntel Confidential Intel Confidential AT&V0 536EX Chipset Developer’s Manual Definition Command DefaultIndication 1, 0, 536EX Chipset Developer’s Manual 1, 1, +ESR+ETBM +IFC +GMR+GSN +ILRR=m modulations +MS=m <carrier>Description see ‘m’ <value> +PHSW=+PMHF +PMHR 536EX Chipset Developer’s Manual Table 19. Operating Modes Error Correction and Data Compression4Error Correction and Data Compression Table 20. Resulting +ES Connection Types NOTES 536EX Chipset Developer’s Manual Error Correction and Data CompressionIntel Confidential 536EX Chipset Developer’s Manual +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 Commands Table 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 Commands 6.2Relay Control Table 25. Voice Mode Command Descriptions6.1DTMF Detection Reporting +FLO=m m = <deassert>, <assert> m=<enable>, <report> +VDR=m m = <mask> +VEM=m Intel Confidential +VIP Preassigned Voice I/O Labels +VLS=m Voice I/O Primitive Codes Relay/Playback Control: cont +VSD=m +VRXm = <sds>, <sdi> Transmission: Range: m= <cml>, <vsr>, <scs>, <sel>+VSM=m Compression Method Selection: cont +VSP=m factory default is ‘0’ +VTS=m none Description CommandDefault DTMF and Tone Generation: cont S-Registers S-RegistersTable 26. S-RegisterCommand Descriptions 536EX Chipset Developer’s Manual Intel ConfidentialS-Registers 536EX Chipset Developer’s Manual Intel ConfidentialS-Registers 536EX Chipset Developer’s Manual Intel ConfidentialS-Registers 536EX Chipset Developer’s Manual Table 27. Caller ID Tags for Formatted Reporting Caller IDCaller ID <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.VxD UART Transmitter Flow Diagram UART Receiver Flow Diagram ADDRESS REGISTERBIT NUMBER NAME Figure 14. Scratch Register SCR 9.2.1Scratch Register SCR9.2.2Modem Status Register MSR Figure 15. Modem Status Register MSR 9.2.3Line Status Register LSR Figure 16. Line Status Register LSR Figure 17. Modem Control Register MCR 9.2.4Modem Control Register MCR9.2.5Line Control Register LCR Figure 18. Line Control Register LCR Figure 19. FIFO Control Register FCR 9.2.6FIFO Control Register FCRRegister Table 28. Interrupt Control Functions 9.2.7Interrupt Identity Register IIRFigure 20. Interrupt Identity Register IIR 9.2.9Transmitter Holding Register THR 9.2.8Interrupt Enable Register IERFigure 21. Interrupt Enable Register IER Figure 22. Transmitter Holding Register THR Figure 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 DLL 9.3.2FIFO Polled Mode Operation 9.316C550A UART FIFO Operation9.3.1FIFO Interrupt Mode Operation 536EX Chipset Developer’s Manual Intel ConfidentialParallel Host Interface 16C450/16C550A UART