Intel 537EX Establishing a Modem Connection A, D, DS = n, S0, Product Identification Information

Page 29

Data Mode AT COMMANDS

3.4Modem Identification Commands [In, +FMI, +FMR, +FMM, +GMI, +GMM, +GMR, +GSN,

+FMFR?, +FMDL?, +FREV?]

The modem provides product identification AT commands that help determine the modem’s manufacturer, model number, and product revision. To provide flexibility with older software application programs, the modem supports several commands that can be used to request a single item of identification (such as a modem model number). Table 15 lists the commands used to obtain product information (all identification commands are usable in data, fax, or voice mode).

Table 15. Product Identification Information

 

 

AT Commands

 

 

 

 

 

 

Product Information

ATIn Command

Data Mode

Class 1 Fax Mode

Legacy Modems

 

 

 

 

 

Modem Manufacturer

ATI2

AT+GMI

AT+FMI

AT+FMFR?

 

 

 

 

 

Model ID

ATI1

AT+GMM

AT+FMM

AT+FMDL?

 

 

 

 

 

Revision Number

ATI4

AT+GMR

AT+FMR

AT+FREV?

 

 

 

 

 

Example:

 

 

 

 

ATI1

Causes the modem to send the modem’s name to the DTE.

Intel 536EP Response to the modem name request.

V.92 Modem

3.5Establishing a Modem Connection [A, D, DS = n, S0]

Data mode provides several methods for establishing a connection with a remote modem. For each modem, a connection can be initiated manually or automatically in both answer and originate modes. A manual-to-manual connection is useful when both modems (that are on-hook) are connected to an off-hook telephone line. For example, if two people are talking on the telephone, they can manually establish a modem connection without first hanging up. When establishing a manual connection, one modem must be designated as the originating modem and the other as the answering modem. Manual originate mode is initiated by sending an ATD to the DCE. Manual answer mode is accomplished by sending an ATA to the DCE.

Automatic originate mode is initiated by sending an ATD <telephone number & dial modifiers> or ATDS=m to the DCE. Automatic-answer mode is accomplished by setting S-register S0 to a non-zero value. S1 keeps track of how many ring signals are detected. If the content of S0 is non- zero and the number of ring signals (as defined by S0) are detected (that is, S1 = S0), then the DCE goes off-hook and attempts to connect to the remote modem (with the following exceptions):

•The time period between the ring signals is greater than 8 seconds, which causes the S1 counter to reset and thus never reach the value for S0.

•Caller ID is enabled and S0=1, the modem answers on the second ring signal instead of the first ring signal. This happens because Caller ID puts a signal on the telephone line between the first and second ring signal.

Example:

536EX Chipset Developer’s Manual

29

Intel Confidential

Page 28 Page 30
Image 29
Page 28 Page 30
Contents Developer’s Manual 537EX ChipsetIntel Confidential Contents Figures Tables 001 Initial release Revision HistoryDate Revision Description Controllerless Modem Driver Overview IntroductionWindows 95 and Windows Tapi V.90/V.92 and V.34 Data ModesUnimodem Intelsdb.VXDModem Connection Overview DTE-to-DCE Data Rates for Each Mode AT Commands OverviewDCE-to-DCE Data Rates for Each Mode DCE-to-ISP Data Rates for V.90 ModeDelayed Call Sending CommandsDTE-Modem Data Rate Response Codes Numeric TextAT Escape Sequences Command FunctionDial Modifier Dialing digitsCommand Function Default Range Reported By &Vn Data Mode Command SummaryIntel Confidential Intel Confidential Intel Confidential +ESA +EB+ESR +ETBM44/V.42/V.42 bis MNP Command Summary Processes flow control characters and passes to local Fax Class 1 Command Summary Fax Identity Command SummaryResponse Hex Code Function IS-101 Voice Command SummaryVoice DTE→DCE Character Pairs Voice DTE←DCE Character Pairs Voice DTE →DCE Character PairsDEL ESCDial Modifiers Register Function Default Range Units Reported by &VnRegister Summary 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 Carrier Description Supported Modulation TypesLocal Analog Loopback AT&T1 Diagnostic Testing S18, &TnLocal Modem or Test Modem Local Analog Loopback With Self-Test AT&T8Licensing Requirements for Hayes Escape Sequence AT Escape SequencesTime-Independent Escape Sequence Example Hayes* Escape Sequence Data Mode Command DescriptionsCommand Default Description Host in either online or off-line command mode Previously stored in the Nvram with the AT&Zn=x commandEcho disabled Echo enabledSn=x ATI2DTE Modem dials a telephone number touch tone dialing CommandNumeric or verbose form Numeric formSubsequent commands to be ignored DisconnectingResets the modem and recalls user profile DCD or Rlsd signalActive Profile AT&V0Stored Profile Telephone NumbersCommand to see the stored telephone number S-register configurations into the Nvram user profile ‘n’Select profile = 0-9 a B C D # * T P R W @Indication Definition Command Default+EB Nrzi encoding and decoding disabled CRC generation and checking disabledSecondary channel operation, and vice versa 12/V.34+ETBM +ESR+GSN +GMR+IFC +ILRR=m+MA? will display a list of enabled alternative modulations +MS command description= carrier,carrier,…carrier If +MS = ,0,, no alternative modulations will be availableBELL103 Carrier DescriptionBELL212 +MS=m See ‘m’+PMHF +PHSW=Value Description +PMHREnable Short Phase 1 and Short Phase Conjunction with the +PSS commandEnable Short Phase Disable short Phase 1 and Short PhaseOperating Modes Mode Features+ES Settings Answer Modem 44/V.42/V.42 bis and MNP Data Modem Command DescriptionsResulting +ES Connection Types +ES=1, 0 +ES=4, 4 +ES=3, 0 +ES=3, 2\Bn \Kn Direction +DR=m+DS=m Max string+EFCS=m 3768Decimal value and the format is as follows Display messages when +ER =+ER=m +ER LapmControl during non-error control operation Setting is ignored if origrqst=6Non-error control operation +ES=mFax Class 1 Commands Fax Identity CommandsFax Identity Command Descriptions +FMFR?/+FMIValue Modulation Speed bps Mod Selection TableClass 1 DTE-Generated Hdlc Frame Information AT+FTH=mod 30 Hdlc Frame Format+FCLASS Fax Mode Command Descriptions+FCLASS? +FRS=m +FRH=m+FTH=m IS-101 Voice Mode AT Commands Relay Control Voice Mode Command DescriptionsDtmf Detection Reporting +FLO=m +VDR=m See ‘m’ Enable report FunctionCaller ID report Command Reserved Distinctive ringing All Defaults = ‘C’, BB860980, BFE63883, BB863EE0Event Description +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 +VSD=m See ‘m’ +VRX141 AD3 3-bit Adaptive differential pulse code modulation +VSM=? command to obtain supported sampling rates+VSM=m Range 4800, 7200, 8000, and 11025 samples/secondSerial CmlHard Disk Compression100 Default value 1 second Factory default is ‘0’100 Range 5-255 units of 0.01 seconds+VTS=m None Dual tones may be sent using the following formatSpecified by +VTD=m This sends a 500 ms period of silenceCommand Default Description Register Command Descriptions S10 S16 Range Seconds Default 0 secondsEscape sequences S22 118 S21S25 S30Modem or when a ring signal is detected Modem exits sleep mode whenever the host reads or writes toSleep mode is disabled by setting S33 to ‘0’ Inactive state whenTag Description Caller ID Tags for Formatted ReportingRing Uart Emulation in Intelsdb.VxD Uart Emulation in the Controllerless ModemRBR UartTHR Parallel Host Interface Uart Register Bit Assignments Modem Status Register MSR Uart Register DefinitionsScratch Register SCR OE Overrun Error-Not supported Bit Framing errorLine Status Register LSR StackProcedure is as follows IER Interrupt Enable registerModem Control Register MCR Line Control Register LCRBit Fifo Control Register FCRID1 ID0 Interrupt Identity Register IIRInterrupt Control Functions ID bit 2 for Fifo mode Interrupt Enable Register IERTransmitter Holding Register THR Dlab =Divisor Latch Registers DLM and DLL Receiver Buffer Register RBRProgrammable Data Rates Data Rate Divisor Number Divisor Latch HexFifo Polled Mode Operation Fifo Interrupt Mode Operation16C550A Uart Fifo 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.
Top Page Image Contents