Basic Data Mode AT Commands | Intel MD566X guide

56K V.92 Data, Fax, and Voice Chipset

3. BASIC DATA MODE AT COMMANDS

The 56K FastPath chipsets implement:

•Standard TIES-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 MD566X executes the AT commands for error correction (MNP 2-4, V.42) and data compression (MNP 5, V.42 bis) described in Table 4-2 on page 66, 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 Command	Modem Response
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>
No Echo, Numeric (E0,	AT<CR>	0<CR>
V0)	ATS0?<CR>	000<CR><LF>0<CR>

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Intel Confidential

Programmer’s Guide

Image 24

Intel MD566X manual Basic Data Mode AT Commands, Using AT Commands to Access the S-Registers Sn?, Sn=x, ?

Contents

MD566X Revision History Symbol Units of measure ConventionsProgrammer’s Guide Acronym Definition Dram Chipset Contents Qty IntroductionIntel V.90/V.92 56K Chipsets V.92, V.90 and V.34 Data Modes Modem Connection Overview DTE-to-DCE Data Rates for Each Mode DCE-to-DCE Data Rates for Each ModeMode Data Rate bps Affected Data AT Command Summary Tables Data Mode Command SummaryCommand Function Default Range Reported by Intel Confidential Data rate Result code type Yes Ports only Async mode +GMI? Intel Confidential V.44 / V.42 / V.42 bis MNP∗ Command Summary Command Function Default Range Reported By &Vn Intel Confidential Value saved in Nvram Fax Identity Command Summary Fax Class 1 Command SummaryIS-101 Voice Command Summary Voice DTE→DCE Character Pairs Response Hex Code Function Voice DTE←DCE Character Pairs Dial Modifiers Command Function Register Function Default Range Units Reported By &VnS-Register Summary 10. V.90/V.92 Mode DCE-to-ISP Response Codes Verbose Code Numeric Code 11. V.34 Mode DCE-to-DCE Response Codes 12. DTE-to-DCE Data Rate Response Codes 13. Manufacturing-Only Command Summary a Command Function Default Range Basic Data Mode AT Commands Using AT Commands to Access the S-Registers Sn?, Sn=x, ?Modem Responses and Command Echo En, Vn, Xn, Wn, Qn Modem Setup Host Command Modem Response Example of a Remote Connection Product Identification Information Information Establishing a Modem Connection A, D, DS = n, S0 Online Command Mode Escape Codes, On Hanging Up Hn, S10, Zn, &D2Modem-to-Modem Connection Data Rates Intel Confidential Intel Confidential ATH +PMHF +PMHR Supported Modulation Types Carrier Description +MS = carrier , automode, min rate, max rate S37 Originating Answering Resulting Connection Speed Modem Figured to attempt only a 28,800 bps connec Diagnostic Testing S18, &Tn Local Analog Loopback AT&T1 AT&T0 Local Analog Loopback With Self-Test AT&T8 Local Analog Loopback with Self-Test AT Escape Sequences Licensing Requirements for Hayes Escape SequenceTime-Independent Escape Sequence Hayes∗ Escape Sequence Data Mode Command Descriptions Command Default DescriptionNone Stant carrier mode Dialing Digits Online data mode echo Reports product code Cont ATI5 Mode from online command mode Sn=x Sn? Protocol Lapm Sequent commands to be ignored For data mode Ports asynchronous mode. This command is the same as &M0 User profile n Modem power-up Zn=x None +GMR? +MS=m See m V34BS Modulation Selection Cont Examples DTE data rate = 115,200 bps +MS=mExamples DTE data rate = 2400 bps +PCW=m +PMH=m +PMHR none DCE +PSS=m Mand Intel Confidential Error Correction and Data Compression Mode Features Resulting \Nn Connection Types Bis with fallback to MNP5 \N3 \An \Bn None \Cn \Gn\Jn \Kn \Nn \Qn \Tn\Xn Intel Confidential 0,471 +DS44=m 972,140140,1884 3768 FAX Class 1 AT Commands Fax Identity CommandsFax Identity Command Descriptions Tocols Fax Class 1 Commands +FREV?/+FMR? none Mod Selection Table Value Modulation Speed Bps Class 1 DTE-Generated Hdlc Frame Information AT+FTH=mod Fax Mode Command Descriptions +FCLASS=1 Command Default Description Receive Hdlc Data +FRH=n+FRM=n None +FRS=n None DTE after receiving the +FTH=mod command Data using the modulation selected in mod IS-101 Voice Mode AT Commands Each command may be used as follows Dtmf Detection Relay Control Voice Mode Command Descriptions +FLO=n +VBT=m +VCID=n Enable Report Function +VDR=m+VEM=m See m +VEM=m Dialtone Example 2. Setting the Event Mask Example 3. Reading the Event Mask SettingsEvent Reporting and Masking Example 1. Viewing Supported Events +VGM=n 128 +VGR=n 128+VGS=n +VGT=n +VIP none Code +VLS=n Relay/Playback Control Primitive Code +VLS=n+VNH=n Intel Confidential +VRX none = sds, sdi Defaults m = 128 +VSD=m See ‘m’ Manufac +VSM=m turer- specified Vsr Comments Samples/second Compression Method Selection +VSM=m ManufacVsr Hard Disk +VSP=n +VTD=n 100 +VTS=m none Dtmf and Tone Generation AT+VTS=DTMF or AT+VTS= , ,duration For example AT+VTS= , ,50 Intel Confidential S-Register Command Descriptions Registers Ascii decimal S10 S11S12 S14 138 S16 S21 S22 118 S23 None S27 S31 S33 Maximum Line Speed Attempted 110 Caller ID Caller ID Tags for Formatted Reporting Ring MANUFACTURING-ONLY Commands Manufacturing-Only Command DescriptionsNCnn S91 S92 $TTnn Tone Test Command Analog Loopback ALB Test FAX Test Command Bit Pins #VGP0=n#VGP1=n See Note #VGP2=n 118 Parallel Host Interface 16C450/16C550A Uart Programmer’s Guide119 Parallel Host Interface Uart Register Bit Assignments Register BIT Number Address Name Uart Register Definitions Scratch Register SCRModem Status Register MSR Line Status Register LSR Are no subsequent Fifo errors Modem Control Register MCR Line Control Register LCR 123 Fifo Control Register FCR Trigger Level Bytes Interrupt Identity Register IIR Interrupt Control Functions125 Interrupt Enable Register IER Transmitter Holding Register THR10.1.10Receiver Buffer Register RBR Fifo Interrupt Mode Operation 10.2 16C550A Uart Fifo Operation10.1.11Divisor Latch Registers DLM and DLL Programmable Data Rates Fifo Polled Mode Operation 129 130