S23 None, S27 | Intel MD566X instruction

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

Table 7-1. S-Register Command Descriptions (Continued)

Bit-Mapped Options: S23 is a read-only register that indicates AT command set- tings.

	Bit 0		Reserved
	Bits 3-1	000	0-300 bps communications rate
		001	1200 bps
		010	2400 bps
		011	4800 bps
		100	Reserved
S23	none	101	9600 bps
S23	none	110	19,200 bps
		111	≥38.4 bps
	Bit 5,4	00	Even parity/space parity
		01	No parity
		10	Odd parity/mark
		11	Reserved
	Bit 7,6	00	&G0 is selected
		01	&G1 is selected
		10	&G2 is selected
		11	Reserved

Detect DTR Change: S25 defines the minimum amount of time that DTR has to re- main off (that is, on-to-off-to-on transitions) before the modem performs the function

S25 5 specified by &Dn command. A change in DTR that persists for a shorter time than the value specified in S25 is ignored by the modem (see the &Dn command).

Range: 0–255 (1/100 of a second)

Bit-Mapped Options: S27 is a read-only register that indicates AT command set- tings.

	Bits 3,1,0	000*	&Q0 is selected
		001	Reserved
		010	Reserved
		011	Reserved
		100	Reserved
S27	64	101	Not used
		110	Not used
		111	Not used
	Bits 2, 4, 5		Reserved
	Bits 7,6	00	B0 is selected
		01*	B1 is selected
		10	B2 is selected
		11	B3 is selected

106

Intel Confidential

Programmer’s Guide

Image 106

Intel MD566X manual S23 None, S27

Contents

MD566X Revision History Programmer’s Guide Symbol Units of measureConventions Acronym Definition Dram Introduction Chipset Contents QtyIntel V.90/V.92 56K Chipsets V.92, V.90 and V.34 Data Modes Modem Connection Overview DCE-to-DCE Data Rates for Each Mode DTE-to-DCE Data Rates for Each ModeMode Data Rate bps Affected Data Data Mode Command Summary AT Command Summary TablesCommand 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 Class 1 Command Summary Fax Identity Command SummaryIS-101 Voice Command Summary Voice DTE→DCE Character Pairs Response Hex Code Function Voice DTE←DCE Character Pairs Register Function Default Range Units Reported By &Vn Dial Modifiers Command FunctionS-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 Modem Responses and Command Echo En, Vn, Xn, Wn, Qn Basic Data Mode AT CommandsUsing AT Commands to Access the S-Registers Sn?, Sn=x, ? Modem Setup Host Command Modem Response Example of a Remote Connection Product Identification Information Information Establishing a Modem Connection A, D, DS = n, S0 Hanging Up Hn, S10, Zn, &D2 Online Command Mode Escape Codes, OnModem-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 Licensing Requirements for Hayes Escape Sequence AT Escape SequencesTime-Independent Escape Sequence Hayes∗ Escape Sequence Command Default Description Data Mode Command DescriptionsNone 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 +MS=m Examples DTE data rate = 115,200 bpsExamples 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 \Gn \Cn\Jn \Kn \Nn \Tn \Qn\Xn Intel Confidential +DS44=m 972,140 0,471140,1884 3768 Fax Identity Command Descriptions FAX Class 1 AT CommandsFax Identity Commands 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 +FRM=n None Command Default Description Receive Hdlc Data+FRH=n +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 +VDR=m Enable Report Function+VEM=m See m +VEM=m Dialtone Event Reporting and Masking Example 2. Setting the Event MaskExample 3. Reading the Event Mask Settings Example 1. Viewing Supported Events +VGS=n +VGM=n 128+VGR=n 128 +VGT=n +VIP none Code +VLS=n Primitive Code +VLS=n Relay/Playback Control+VNH=n Intel Confidential +VRX none = sds, sdi Defaults m = 128 +VSD=m See ‘m’ Manufac +VSM=m turer- specified Vsr Comments Samples/second Vsr Compression Method Selection+VSM=m Manufac 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 S11 S10S12 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 Command Descriptions MANUFACTURING-ONLY CommandsNCnn S91 S92 $TTnn Tone Test Command Analog Loopback ALB Test FAX Test #VGP1=n See Note Command Bit Pins#VGP0=n #VGP2=n 118 Programmer’s Guide Parallel Host Interface 16C450/16C550A Uart119 Parallel Host Interface Uart Register Bit Assignments Register BIT Number Address Name Modem Status Register MSR Uart Register DefinitionsScratch Register SCR 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 Control Functions Interrupt Identity Register IIR125 Transmitter Holding Register THR Interrupt Enable Register IER10.1.10Receiver Buffer Register RBR 10.1.11Divisor Latch Registers DLM and DLL Fifo Interrupt Mode Operation10.2 16C550A Uart Fifo Operation Programmable Data Rates Fifo Polled Mode Operation 129 130