Intel 537EX manual AT Escape Sequences, Time-Independent Escape Sequence

Page 38

Data Mode AT COMMANDS

Local Modem (or Test Modem)

AT&F &W<CR>

Returns the modem to the factory defaults.

AT S18=20 &T8

Causes the modem to start local analog loopback with self-test for 20

 

seconds.

OK

After starting analog loopback, the modem goes back to command

 

mode.

AT

The modem responds to new commands.

OK

 

000

After 20 seconds, the modem stops analog loopback, sends

OK

an error count to the DTE, and enters command mode.

AT S18=0 &T8

Causes the modem to start local analog loopback with self-test, which

 

is only terminated by AT&T0 or ATH.

OK

After starting analog loopback, the modem goes back to command

 

mode.

AT

The modem responds to new commands.

OK

 

AT&T0

After receiving AT&T0 or ATH, the modem stops analog

000

loopback, sends an error count to the DTE, and enters

OK

command mode.

3.10AT Escape Sequences

The 56K family provides the industry-standard Time Independent Escape Sequence (TIES). The DTE sends the escape sequence to return the modem to command state while in the online data state (that is, connected to another modem) or in diagnostic mode (&Tn commands).

Intel also makes the HayesEscape Sequence available to customers; however, see the following statement regarding licensing requirements.

Licensing Requirements for Hayes Escape Sequence

The Intel chipsets are manufactured with TIES as the default setting. It is Hayes’ position that you must either have or obtain a valid license from Hayes Microcomputer Products, Inc., of Norcross, Georgia, before producing modem systems that use the Hayes Escape Sequence.

Intel accepts no responsibility and does not indemnify nor in any way provide protection for patent or possible patent violations to its customers or users of its products.

3.10.1Time-Independent Escape Sequence

The TIES (Time-Independent Escape Sequence), implemented with +++AT, was developed by a group of modem manufacturers as an alternative to the Hayes Escape Sequence. TIES was designed for compatibility with existing communication software written for the Hayes Escape Sequence.

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536EX Chipset Developer’s Manual

Intel Confidential

Page 37 Page 39
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Page 37 Page 39
Contents 537EX Chipset Developer’s ManualIntel Confidential Contents Figures Tables 001 Initial release Revision HistoryDate Revision Description Introduction Controllerless Modem Driver OverviewWindows 95 and Windows Unimodem V.90/V.92 and V.34 Data ModesTapi Intelsdb.VXDModem Connection Overview DCE-to-DCE Data Rates for Each Mode AT Commands OverviewDTE-to-DCE Data Rates for Each Mode DCE-to-ISP Data Rates for V.90 ModeDTE-Modem Data Rate Response Codes Sending CommandsDelayed Call Numeric TextDial Modifier Command FunctionAT Escape Sequences Dialing digitsData Mode Command Summary Command Function Default Range Reported By &VnIntel Confidential Intel Confidential Intel Confidential +ESR +EB+ESA +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 SummaryResponse Hex Code Function IS-101 Voice Command SummaryVoice DTE→DCE Character Pairs DEL Voice DTE →DCE Character PairsVoice DTE←DCE Character Pairs ESCRegister Summary Register Function Default Range Units Reported by &VnDial Modifiers AsciiRegister Function Default Range Units Modem Setup Host Modem Response Command Using AT Commands to Access the S-Registers Sn?, Sn=x, ?Modem Responses and Command Echo En, Vn, Xn, Wn, Qn DTE Disable EnableData Reporting Wn Mapping Resets and then configures the modem to Nvram user profile Product Identification Information AT Commands Product InformationEstablishing 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 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 ModemLicensing Requirements for Hayes Escape Sequence AT Escape SequencesTime-Independent Escape Sequence Example Hayes* Escape Sequence Data Mode Command DescriptionsCommand Default Description Echo disabled Previously stored in the Nvram with the AT&Zn=x commandHost in either online or off-line command mode Echo enabledSn=x ATI2DTE Numeric or verbose form CommandModem dials a telephone number touch tone dialing Numeric formResets the modem and recalls user profile DisconnectingSubsequent commands to be ignored DCD or Rlsd signalStored Profile AT&V0Active Profile Telephone NumbersSelect profile S-register configurations into the Nvram user profile ‘n’Command to see the stored telephone number = 0-9 a B C D # * T P R W @Command Default Indication Definition+EB Secondary channel operation, and vice versa CRC generation and checking disabledNrzi encoding and decoding disabled 12/V.34+ESR +ETBM+IFC +GMR+GSN +ILRR=m= carrier,carrier,…carrier +MS command description+MA? will display a list of enabled alternative modulations If +MS = ,0,, no alternative modulations will be availableBELL212 Carrier DescriptionBELL103 +MS=m See ‘m’Value Description +PHSW=+PMHF +PMHREnable Short Phase Conjunction with the +PSS commandEnable Short Phase 1 and Short Phase Disable short Phase 1 and Short PhaseMode Features Operating ModesResulting +ES Connection Types 44/V.42/V.42 bis and MNP Data Modem Command Descriptions+ES Settings Answer Modem +ES=1, 0 +ES=4, 4 +ES=3, 0 +ES=3, 2\Bn \Kn +DS=m +DR=mDirection Max string3768 +EFCS=m+ER=m Display messages when +ER =Decimal value and the format is as follows +ER LapmNon-error control operation Setting is ignored if origrqst=6Control during non-error control operation +ES=mFax Identity Command Descriptions Fax Identity CommandsFax Class 1 Commands +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 Relay Control Voice Mode Command DescriptionsDtmf Detection Reporting +FLO=m Enable report Function +VDR=m See ‘m’Event Description Defaults = ‘C’, BB860980, BFE63883, BB863EE0Caller ID report Command Reserved Distinctive ringing All +VEM=m See ‘m’HEX Digit Location EIGHT-DIGIT HEX Code B B 8 6 3 E EEX Value BIT Value Event +VIP Local telephone, or speaker128 Nominal transmit level +VLS=m Preassigned Voice I/O LabelsLabel Primitive Code Description Voice I/O Primitive CodesRelay/Playback Control +VRX +VSD=m See ‘m’+VSM=m +VSM=? command to obtain supported sampling rates141 AD3 3-bit Adaptive differential pulse code modulation Range 4800, 7200, 8000, and 11025 samples/secondHard Disk CmlSerial Compression100 Factory default is ‘0’100 Default value 1 second Range 5-255 units of 0.01 secondsSpecified by +VTD=m Dual tones may be sent using the following format+VTS=m None This sends a 500 ms period of silenceCommand Default Description Register Command Descriptions S10 S16 Range Seconds Default 0 secondsEscape sequences S25 S21S22 118 S30Sleep mode is disabled by setting S33 to ‘0’ Modem exits sleep mode whenever the host reads or writes toModem or when a ring signal is detected Inactive state whenCaller ID Tags for Formatted Reporting Tag DescriptionRing Uart Emulation in the Controllerless Modem Uart Emulation in Intelsdb.VxDRBR UartTHR Parallel Host Interface Uart Register Bit Assignments Modem Status Register MSR Uart Register DefinitionsScratch Register SCR Line Status Register LSR Bit Framing errorOE Overrun Error-Not supported StackModem Control Register MCR IER Interrupt Enable registerProcedure is as follows Line Control Register LCRFifo Control Register FCR BitID1 ID0 Interrupt Identity Register IIRInterrupt Control Functions Transmitter Holding Register THR Interrupt Enable Register IERID bit 2 for Fifo mode Dlab =Programmable Data Rates Receiver Buffer Register RBRDivisor Latch Registers DLM and DLL Data Rate Divisor Number Divisor Latch Hex16C550A Uart Fifo Operation Fifo Interrupt Mode OperationFifo Polled Mode Operation 102536EX Chipset Developer’s Manual 103

537EX specifications

The Intel 537EX is a powerful and innovative embedded processor designed for a range of applications, particularly in the fields of industrial automation, telecommunications, and transport management systems. This processor is a member of Intel's embedded product line, tailored specifically to meet the demands of systems that require high reliability and long lifecycle support.

One of the main features of the Intel 537EX is its multi-core architecture, which enables efficient parallel processing capabilities. This allows for the execution of multiple tasks simultaneously, significantly improving overall system performance. The processor also incorporates Intel’s advanced power management technology, which ensures that the device consumes energy efficiently, enhances thermal performance, and prolongs the lifespan of the system.

The Intel 537EX supports a range of connectivity options, including high-speed Ethernet and Serial ATA interfaces. This ensures that it can easily integrate into existing systems, seamlessly supporting applications that require robust data transfer capabilities. Additionally, the processor is equipped with multiple I/O ports, facilitating the connection of various peripherals and sensors, which is crucial in industrial applications.

One of the standout technologies within the Intel 537EX is its support for hardware virtualization. This feature allows for the creation of multiple virtual environments within a single physical structure, optimizing resource utilization and enhancing system flexibility. Additionally, Intel’s integrated security technologies provide a significant layer of protection against potential threats, ensuring that embedded systems remain secure.

Another characteristic of the Intel 537EX is its extensive software support, which includes compatibility with various operating systems and development environments. This versatility makes it an attractive choice for developers looking to build or upgrade their embedded systems. With access to Intel's comprehensive software tools, developers can quickly optimize applications to take full advantage of the processor's capabilities.

The Intel 537EX also boasts excellent thermal performance, allowing it to operate efficiently in harsh environments. This is crucial for embedded applications in industrial settings where temperature fluctuations are common. Overall, the Intel 537EX is engineered to deliver high-performance processing power, superior connectivity, and enhanced security, solidifying its position as a reliable choice for demanding embedded applications.
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