Intel 537EX manual S21, S22 118, S25, S30

Page 88

S-Registers

Table 26. S-Register Command Descriptions (Continued)

Command

Default

 

 

Description

 

 

 

 

 

Bit-Mapped Options: S21 is a read-only register that indicates AT command settings.

 

 

Bit 0

 

Reserved

 

 

Bit 1

 

Reserved

 

 

Bit 2

 

Reserved

 

 

Bits 4–3

00

&D0 is selected

 

 

 

01

&D1 is selected

S21

48

 

10*

&D2 is selected

 

11

&D3 is selected

 

 

 

 

 

Bit 5

0

&C0 is selected

 

 

 

1*

&C1 is selected

 

 

Bit 6

0*

&S0 is selected

 

 

 

1

&S1 is selected

 

 

Bit 7

0*

Y0 is selected

 

 

 

1

Y1 is selected

 

 

 

 

 

Bit-Mapped Options: S22 is a read-only register that indicates AT command settings.

 

 

Bits 1–0

00

L0 is selected

 

 

 

01

L1 is selected

 

 

 

10*

L2 is selected

 

 

 

11

L3 is selected

 

 

Bits 3–2

00

M0 is selected

 

 

 

01*

M1 is selected

 

 

 

10

M2 is selected

S22

118

 

11

M3 is selected

Bits 6–4

000

X0 is selected

 

 

 

 

 

001

Reserved

 

 

 

010

Reserved

 

 

 

011

Reserved

 

 

 

100

X1 is selected

 

 

 

101

X2 is selected

 

 

 

110

X3 is selected

 

 

 

111*

X4 is selected

 

 

Bit 7

0*

&P0 is selected

 

 

 

1

&P1 is selected

 

 

 

 

 

Detect DTR Change: S25 defines the minimum amount of time that DTR has to remain off (that

 

 

is, on-to-off-to-on transitions) before the modem performs the function specified by &Dn

S25

5

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)

 

 

 

 

 

Disconnect Inactivity Timer: This S-register sets the length of time (in minutes) that the

 

 

modem stays online/off-hook before disconnecting when no data is being transmitted or

 

 

received. In data and fax modes, any data transmitted or received between the DTE-DCE

S30

0

interface resets the timer. In all other modes (except Telephone-Emulation mode), any data

transmitted resets the timer. In Telephone-Emulation mode, S30 is ignored (that is, the modem

 

 

does not automatically hang up the line after a given time delay).

 

 

Range: 0–255 minutes

 

 

0

Disabled

 

 

 

 

 

NOTE: An asterisk (*) denotes the factory-default setting.

88

536EX Chipset Developer’s Manual

Intel Confidential

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Page 87 Page 89
Contents 537EX Chipset Developer’s ManualIntel Confidential Contents Figures Tables Date Revision Description Revision History001 Initial release Introduction Controllerless Modem Driver OverviewWindows 95 and Windows V.90/V.92 and V.34 Data Modes TapiUnimodem Intelsdb.VXDModem Connection Overview AT Commands Overview DTE-to-DCE Data Rates for Each ModeDCE-to-DCE Data Rates for Each Mode DCE-to-ISP Data Rates for V.90 ModeSending Commands Delayed CallDTE-Modem Data Rate Response Codes Numeric TextCommand Function AT Escape SequencesDial Modifier Dialing digitsData Mode Command Summary Command Function Default Range Reported By &VnIntel Confidential Intel Confidential Intel Confidential +EB +ESA+ESR +ETBM44/V.42/V.42 bis MNP Command Summary Processes flow control characters and passes to local Fax Identity Command Summary Fax Class 1 Command SummaryVoice DTE→DCE Character Pairs IS-101 Voice Command SummaryResponse Hex Code Function Voice DTE →DCE Character Pairs Voice DTE←DCE Character PairsDEL ESCRegister Function Default Range Units Reported by &Vn Dial ModifiersRegister Summary AsciiRegister Function Default Range Units Modem Responses and Command Echo En, Vn, Xn, Wn, Qn Using AT Commands to Access the S-Registers Sn?, Sn=x, ?Modem Setup Host Modem Response Command Data Reporting Wn Mapping Disable EnableDTE Resets and then configures the modem to Nvram user profile Establishing a Modem Connection A, D, DS = n, S0 AT Commands Product InformationProduct Identification Information Hanging Up Hn, S10, Zn, &D2 Online Command Mode Escape Codes, OnModem-to-Modem Connection Data Rates Intel Confidential Modem-on-Hold Incoming Voice Call in Data Mode Modem-on-Hold Initiating a Voice Call in Data Mode Intel Confidential Supported Modulation Types Carrier DescriptionDiagnostic Testing S18, &Tn Local Analog Loopback AT&T1Local Analog Loopback With Self-Test AT&T8 Local Modem or Test ModemTime-Independent Escape Sequence AT Escape SequencesLicensing Requirements for Hayes Escape Sequence Example Command Default Description Data Mode Command DescriptionsHayes* Escape Sequence Previously stored in the Nvram with the AT&Zn=x command Host in either online or off-line command modeEcho disabled Echo enabledDTE ATI2Sn=x Command Modem dials a telephone number touch tone dialingNumeric or verbose form Numeric formDisconnecting Subsequent commands to be ignoredResets the modem and recalls user profile DCD or Rlsd signalAT&V0 Active ProfileStored Profile Telephone NumbersS-register configurations into the Nvram user profile ‘n’ Command to see the stored telephone numberSelect profile = 0-9 a B C D # * T P R W @Command Default Indication Definition+EB CRC generation and checking disabled Nrzi encoding and decoding disabledSecondary channel operation, and vice versa 12/V.34+ESR +ETBM+GMR +GSN+IFC +ILRR=m+MS command description +MA? will display a list of enabled alternative modulations= carrier,carrier,…carrier If +MS = ,0,, no alternative modulations will be availableCarrier Description BELL103BELL212 +MS=m See ‘m’+PHSW= +PMHFValue Description +PMHRConjunction with the +PSS command Enable Short Phase 1 and Short PhaseEnable Short Phase Disable short Phase 1 and Short PhaseMode Features Operating Modes44/V.42/V.42 bis and MNP Data Modem Command Descriptions +ES Settings Answer ModemResulting +ES Connection Types +ES=1, 0 +ES=4, 4 +ES=3, 0 +ES=3, 2\Bn \Kn +DR=m Direction+DS=m Max string3768 +EFCS=mDisplay messages when +ER = Decimal value and the format is as follows+ER=m +ER LapmSetting is ignored if origrqst=6 Control during non-error control operationNon-error control operation +ES=mFax Identity Commands Fax Class 1 CommandsFax Identity Command Descriptions +FMFR?/+FMIMod Selection Table Value Modulation Speed bps30 Hdlc Frame Format Class 1 DTE-Generated Hdlc Frame Information AT+FTH=mod+FCLASS? Fax Mode Command Descriptions+FCLASS +FRH=m +FRS=m+FTH=m IS-101 Voice Mode AT Commands Dtmf Detection Reporting Voice Mode Command DescriptionsRelay Control +FLO=m Enable report Function +VDR=m See ‘m’Defaults = ‘C’, BB860980, BFE63883, BB863EE0 Caller ID report Command Reserved Distinctive ringing AllEvent Description +VEM=m See ‘m’EX Value BIT Value Event EIGHT-DIGIT HEX Code B B 8 6 3 E EHEX Digit Location 128 Nominal transmit level Local telephone, or speaker+VIP Label Preassigned Voice I/O Labels+VLS=m Relay/Playback Control Voice I/O Primitive CodesPrimitive Code Description +VRX +VSD=m See ‘m’+VSM=? command to obtain supported sampling rates 141 AD3 3-bit Adaptive differential pulse code modulation+VSM=m Range 4800, 7200, 8000, and 11025 samples/secondCml SerialHard Disk CompressionFactory default is ‘0’ 100 Default value 1 second100 Range 5-255 units of 0.01 secondsDual tones may be sent using the following format +VTS=m NoneSpecified by +VTD=m This sends a 500 ms period of silenceCommand Default Description Register Command Descriptions S10 Escape sequences Range Seconds Default 0 secondsS16 S21 S22 118S25 S30Modem exits sleep mode whenever the host reads or writes to Modem or when a ring signal is detectedSleep mode is disabled by setting S33 to ‘0’ Inactive state whenCaller ID Tags for Formatted Reporting Tag DescriptionRing Uart Emulation in the Controllerless Modem Uart Emulation in Intelsdb.VxDTHR UartRBR Parallel Host Interface Uart Register Bit Assignments Scratch Register SCR Uart Register DefinitionsModem Status Register MSR Bit Framing error OE Overrun Error-Not supportedLine Status Register LSR StackIER Interrupt Enable register Procedure is as followsModem Control Register MCR Line Control Register LCRFifo Control Register FCR BitInterrupt Control Functions Interrupt Identity Register IIRID1 ID0 Interrupt Enable Register IER ID bit 2 for Fifo modeTransmitter Holding Register THR Dlab =Receiver Buffer Register RBR Divisor Latch Registers DLM and DLLProgrammable Data Rates Data Rate Divisor Number Divisor Latch HexFifo Interrupt Mode Operation Fifo Polled Mode Operation16C550A Uart Fifo Operation 102536EX Chipset Developer’s Manual 103
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