+VBT=m, +VCID=n | Intel MD566X specs

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

Table 6-1. Voice Mode Command Descriptions (Continued)

Buffer Threshold Setting: This command specifies the flow control assert and deassert points inside the DCE’s internal transmit buffer. The internal buffer is 512 bytes. The +VBT=m parameters are fixed in firmware and cannot be changed.

m = <deassert>, <assert>

Defaults: <deassert> = 192, <assert> = 320

			<assert>: This parameter stops data transfer from the DTE when the number of
	+VBT=m	see “m”	bytes in the buffer reaches the lower number of the range specified by the <as-
	+VBT=m	see “m”	sert> parameter. So that no data is lost before the modem stops the flow of data,

			the <assert> parameter allows more data to enter the buffer until it reaches the
			larger number in its range.
			Range: <assert> = 192
			<deassert>: This parameter starts data transfer from the DTE after the number
			of bytes in the transmit buffer falls below the <deassert> value.
			Range: <deassert> = 320

			Caller ID Selection: This command controls the reporting and presentation of
			data in the ICLID (Incoming Call Line ID) data format used by the Caller ID ser-
			vices in the United States and Canada. At a minimum, the data sent to the DCE
			includes the date, time, and the caller’s telephone number. Caller ID information
			is sent to the DTE during the first and second ring signals when the modem is in
			voice, data, or fax mode.
			n = 0–2
			n = 0*	Disables Caller ID
	+VCID=n	0	n = 1	Enables Caller ID with formatted presentation to the DTE. The
				modem presents the data items in a <Tag><Value> pair format.
				The expected pairs are data, time, caller code (phone number),
				and name.
			n = 2	Enables Caller ID with unformatted presentation to the DTE. The
				modem presents the entire packet of information, excluding the
				leading U’s, in ASCII-printable hex numbers.

Note: If S0=1 (auto-answer mode) and Caller ID is enabled in data modem mode, then the modem answers only after the second ring signal.

Programmer’s Guide

Intel Confidential

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Image 83

Intel MD566X manual +VBT=m, +VCID=n

Contents

MD566X Revision History Acronym Definition Symbol Units of measureConventions Programmer’s Guide Dram Intel V.90/V.92 56K Chipsets Chipset Contents QtyIntroduction Modem Connection Overview V.92, V.90 and V.34 Data Modes Mode Data Rate bps Affected Data DTE-to-DCE Data Rates for Each ModeDCE-to-DCE Data Rates for Each Mode Command Function Default Range Reported by AT Command Summary TablesData Mode Command Summary Intel Confidential Data rate Result code type Yes Ports only Async mode +GMI? Intel Confidential Command Function Default Range Reported By &Vn V.44 / V.42 / V.42 bis MNP∗ Command Summary Intel Confidential Value saved in Nvram IS-101 Voice Command Summary Fax Identity Command SummaryFax Class 1 Command Summary Response Hex Code Function Voice DTE→DCE Character Pairs Voice DTE←DCE Character Pairs S-Register Summary Dial Modifiers Command FunctionRegister Function Default Range Units Reported By &Vn Verbose Code Numeric Code 10. V.90/V.92 Mode DCE-to-ISP Response Codes 12. DTE-to-DCE Data Rate Response Codes 11. V.34 Mode DCE-to-DCE Response Codes Command Function Default Range 13. Manufacturing-Only Command Summary a Modem Setup Host Command Modem Response Basic Data Mode AT CommandsUsing AT Commands to Access the S-Registers Sn?, Sn=x, ? Modem Responses and Command Echo En, Vn, Xn, Wn, Qn Example of a Remote Connection Information Product Identification Information Establishing a Modem Connection A, D, DS = n, S0 Modem-to-Modem Connection Data Rates Online Command Mode Escape Codes, OnHanging Up Hn, S10, Zn, &D2 Intel Confidential Intel Confidential ATH +PMHF +PMHR Carrier Description Supported Modulation Types S37 +MS = carrier , automode, min rate, max rate Figured to attempt only a 28,800 bps connec Originating Answering Resulting Connection Speed Modem Local Analog Loopback AT&T1 Diagnostic Testing S18, &Tn AT&T0 Local Analog Loopback with Self-Test Local Analog Loopback With Self-Test AT&T8 Time-Independent Escape Sequence AT Escape SequencesLicensing Requirements for Hayes Escape Sequence Hayes∗ Escape Sequence None Data Mode Command DescriptionsCommand Default Description Stant carrier mode Dialing Digits Online data mode echo Reports product code ATI5 Cont Mode from online command mode Sn? Sn=x Protocol Lapm Sequent commands to be ignored For data mode Ports asynchronous mode. This command is the same as &M0 User profile n Zn=x None Modem power-up +GMR? V34BS +MS=m See m Cont Modulation Selection Examples DTE data rate = 2400 bps Examples DTE data rate = 115,200 bps+MS=m +PMH=m +PCW=m DCE +PMHR none Mand +PSS=m Intel Confidential Mode Features Error Correction and Data Compression Resulting \Nn Connection Types Bis with fallback to MNP5 \N3 \Bn None \An \Jn \Cn\Gn \Nn \Kn \Xn \Qn\Tn Intel Confidential 140,1884 3768 0,471+DS44=m 972,140 Tocols FAX Class 1 AT CommandsFax Identity Commands Fax Identity Command Descriptions +FREV?/+FMR? none Fax Class 1 Commands Value Modulation Speed Bps Mod Selection Table Class 1 DTE-Generated Hdlc Frame Information AT+FTH=mod +FCLASS=1 Fax Mode Command Descriptions +FRS=n None Command Default Description Receive Hdlc Data+FRH=n +FRM=n None DTE after receiving the +FTH=mod command Data using the modulation selected in mod Each command may be used as follows IS-101 Voice Mode AT Commands Relay Control Dtmf Detection +FLO=n Voice Mode Command Descriptions +VCID=n +VBT=m +VEM=m See m Enable Report Function+VDR=m Dialtone +VEM=m Example 1. Viewing Supported Events Example 2. Setting the Event MaskExample 3. Reading the Event Mask Settings Event Reporting and Masking +VGT=n +VGM=n 128+VGR=n 128 +VGS=n +VIP none +VLS=n Code +VNH=n Relay/Playback ControlPrimitive Code +VLS=n Intel Confidential +VRX none +VSD=m See ‘m’ = sds, sdi Defaults m = 128 Vsr Comments Samples/second Manufac +VSM=m turer- specified Hard Disk Compression Method Selection+VSM=m Manufac Vsr +VTD=n 100 +VSP=n +VTS=m none AT+VTS=DTMF or Dtmf and Tone Generation AT+VTS= , ,duration For example AT+VTS= , ,50 Intel Confidential Registers S-Register Command Descriptions Ascii decimal S12 S10S11 S16 S14 138 S22 118 S21 S27 S23 None S31 S33 Maximum Line Speed Attempted 110 Caller ID Tags for Formatted Reporting Caller ID Ring NCnn MANUFACTURING-ONLY CommandsManufacturing-Only Command Descriptions S92 S91 $TTnn FAX Test Tone Test Command Analog Loopback ALB Test #VGP2=n Command Bit Pins#VGP0=n #VGP1=n See Note 118 119 Parallel Host Interface 16C450/16C550A UartProgrammer’s Guide Register BIT Number Address Name Parallel Host Interface Uart Register Bit Assignments Line Status Register LSR Uart Register DefinitionsScratch Register SCR Modem Status Register MSR Modem Control Register MCR Are no subsequent Fifo errors 123 Line Control Register LCR Trigger Level Bytes Fifo Control Register FCR 125 Interrupt Identity Register IIRInterrupt Control Functions 10.1.10Receiver Buffer Register RBR Interrupt Enable Register IERTransmitter Holding Register THR Programmable Data Rates Fifo Interrupt Mode Operation10.2 16C550A Uart Fifo Operation 10.1.11Divisor Latch Registers DLM and DLL Fifo Polled Mode Operation 129 130