Intel 536EX Intel Confidential, Fax Class 1 AT Commands, Fax Mode Command Descriptions Continued

Page 68
Table 24. Fax Mode Command Descriptions (Continued)

Fax Class 1 AT Commands

Table 24. Fax Mode Command Descriptions (Continued)

Command

Default

Description

 

 

 

 

 

Receive HDLC Data: The +FRH=<mod> command causes the modem to receive

 

 

HDLC-framed data using the modulation mode selected in <mod>. The modem then

 

 

delivers the next-received frame to the DTE.

 

 

If the modem detects the selected carrier signal with an HDLC flag, the modem sends

 

 

a ‘CONNECT’ result code to the DTE. If the modem detects a different signal, the

 

 

modem sends the ‘+FCERROR’ (fax connect error) result code to the DTE and returns

 

 

to command mode. Upon loss of carrier, the modem returns to command mode and

 

 

sends a ‘NO CARRIER’ result code to the DTE.

 

 

After receiving the HDLC flags, the modem strips away the flags and buffers the

 

 

received frames. The modem then transfers the received data to the DTE, starting with

 

 

the first non-flag byte and continuing through the last FCS byte. The DTE should

 

 

ignore the value of the FCS bytes. The modem also performs HDLC zero-bit deletion

 

 

and error checking.

 

 

After the FCS bytes are transferred, the modem marks the end of the frame with

 

 

<DLE><ETX> and reports the status of the frame reception to the DTE. If the frame

+FRH=m

none

was received correctly (FCS is correct), the modem returns a ‘OK’ result code. If the

frame was received in error (FCS is not correct, carrier lost, or data lost due to data

 

 

overflow), the DCE returns an ‘ERROR’ result code. The DTE should then discard this

 

 

frame.

 

 

After sending the status result code, the modem is ready to accept new commands

 

 

from the DTE.

 

 

The modem obeys the configured flow control from the DTE. If the DTE sends any

 

 

character to the modem other than DC1 or DC3 while the modem is in this mode, the

 

 

modem enters command mode and return an ‘OK’ result code.

 

 

After sending the result code indicating that frame reception is complete, the modem

 

 

continues to receive and buffer the data in the selected mode. If the DTE issues

 

 

another +FRH=<mod> command, the modem returns another ‘CONNECT’ result

 

 

code and continues with HDLC reception. If the DTE issues any command that

 

 

changes modulation, the DCE stops the receive process; the DCE then discards any

 

 

buffered data and processes the command.

 

 

Range: <mod> = 3

 

 

Refer to Table 23 on page 65.

 

 

 

 

 

Receive Data: The +FRM=<mod> command causes the modem to enter receive

 

 

mode using the modulation scheme specified in <mod>. <mod> may have the values

 

 

shown in Table 23 on page 65.

 

 

When the selected carrier is detected, the modem sends a ‘CONNECT’ result to the

 

 

DTE. If a different signal is detected, the modem sends a ‘+FCERROR’ (connect error)

 

 

result code to the DTE and returns to command mode.

 

 

After receiving the selected carrier, the modem transfers all received data patterns to

+FRM=m

none

the DTE as consecutive start-stop framed bytes, including leading marking conditions

 

 

or flags. The modem marks the end of the data stream with <DLE><ETX>.

 

 

Upon loss of carrier, the modem returns to command state and sends a ‘NO

 

 

CARRIER’ result code to the DTE.

 

 

NOTE: If the modem is on-hook, then the modem always returns an ‘ERROR’

 

 

message to the DTE after receiving the +FRM=<mod> command.

 

 

Range: <mod> = 24, 48, 72, 73, 74, 96, 97, 98, 121, 122, 145, 146

 

 

Refer to Table 23 on page 65.

 

 

 

 

 

Wait for Silence: The +FRS=<TIME> command causes the modem to send an ‘OK’

 

 

result code to the DTE when silence has been detected on the line for the amount of

 

 

time specified. The value <TIME> is in 10 ms intervals. The command terminates

+FRS=m

none

when the required amount of silence has been detected on the line or the DTE sends

 

 

the modem another character that is discarded. In either event, the DTE returns the

 

 

‘OK’ result code.

 

 

Range: <TIME> = 1–255 (10 ms)

 

 

 

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

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536EX Chipset Developer’s Manual

Intel Confidential

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Contents January 536EX ChipsetDeveloper’s Manual Intel Confidential 536EX Chipset Developer’s ManualContents ContentsFigures Tables Revision History DateRevision DescriptionIntroduction 1.1Controllerless Modem Driver OverviewFigure 1. WDM Driver Block Diagram 1.1.2Windows 95 and WindowsUser applications Kernel - ring0Figure 2. VxD Mini Port Driver Block Diagram 1.2V.90/V.92 and V.34 Data Modes1.3Modem Connection Overview Table 3. DCE-to-ISPData Rates for V.90 Mode Table 1. DTE-to-DCEData Rates for Each ModeTable 2. DCE-to-DCEData Rates for Each Mode 1.4.1Sending Commands Table 4. DTE-ModemData Rate Response Codes1.4.2AT Escape Sequences 1.4.3Dial ModifierTable 5. Data Mode Command Summary AT Command Summary TablesAT Command Summary Tables Table 5. Data Mode Command Summary Continued Result code type AT Command Summary Tables Generate data mode calling tone Table 6. V.44/V.42/V.42 bis MNP Command Summary AT Command Summary Tables Table 7. Fax Identity Command Summary Table 8. Fax Class 1 Command SummaryTable 9. IS-101Voice Command Summary Table 10. Voice DTE→DCE Character PairsTable 10. Voice DTE→DCE Character Pairs Continued Table 11. Voice DTE←DCE Character PairsTable 13. S-RegisterSummary Table 11. Voice DTE←DCE Character Pairs ContinuedTable 12. Dial Modifiers Table 13. S-RegisterSummary Continued Data Mode AT COMMANDS Data Mode AT COMMANDSTable 14. Data Reporting Wn Mapping Figure 3. Example of a Remote ConnectionATW0 •ATW2Examples +FMFR?, +FMDL?, +FREV? 3.8Modem-to-ModemConnection Data Rates 3.6Online Command Mode Escape Codes, On3.7Hanging Up Hn, S10, Zn, &D2 536EX Chipset Developer’s Manual +PMH=0 +PCW=0+VCID=1 +++AT536EX Chipset Developer’s Manual hook to connect the call. Now you can answer the phone and talk. After completing your voice conversation, the modem will issue another +PMHF and ATO command to initiate a Quick Connect. If the server rejects the request to go on hold, the user can stay on line ATO command issued or disconnect from his initial data connection ATH command issued Table 16. Supported Modulation Types 3.9Diagnostic Testing S18, &Tn 3.9.1Local Analog Loopback AT&T13.9.2Local Analog Loopback With Self-TestAT&T8 LOCAL MODEMFigure 6. Local Analog Loopback Test Local Modem or Test Modem3.10.1Time-IndependentEscape Sequence Licensing Requirements for Hayes Escape Sequencechar1 = char2 = char3 = escape character S2 <char1><char2><char3><AT command><contents of S3>Format Table 18. Data Mode Command Descriptions 3.10.2Hayes* Escape Sequence536EX Chipset Developer’s Manual Sn=x 536EX Chipset Developer’s Manual Data Mode AT COMMANDSIntel Confidential Data Mode AT COMMANDS AT&V0 536EX Chipset Developer’s Manual Definition Command DefaultIndication 1, 0, 536EX Chipset Developer’s Manual 1, 1, +ESR+ETBM +GMR +GSN+IFC +ILRR=mData Mode AT COMMANDS <carrier> Description+MS=m see ‘m’+PHSW= +PMHF<value> +PMHR536EX Chipset Developer’s Manual Table 19. Operating Modes Error Correction and Data Compression4Error Correction and Data Compression Table 20. Resulting +ES Connection Types NOTES536EX Chipset Developer’s Manual Error Correction and Data CompressionIntel Confidential 536EX Chipset Developer’s Manual +DR=m direction+DS=m <max string>3768 +EFCS=m+ER=m +ES=m Fax Class 1 AT Commands 5.1Fax Identity Commands5.2Fax Class 1 Commands Fax Class 1 AT CommandsTable 23. <mod> Selection Table Figure 8. T.30 HDLC Frame Format Table 24. Fax Mode Command Descriptions Table 24. Fax Mode Command Descriptions Continued +FRH=mRefer to Table 23 on page shown in Table 23 on page+FTH=m IS-101Voice Mode AT Commands IS-101Voice Mode AT Commands6.2Relay Control Table 25. Voice Mode Command Descriptions6.1DTMF Detection Reporting +FLO=m m = <deassert>, <assert>m=<enable>, <report> +VDR=mm = <mask> +VEM=mIntel Confidential +VIP Preassigned Voice I/O Labels +VLS=mVoice I/O Primitive Codes Relay/Playback Control: cont+VSD=m +VRXm = <sds>, <sdi> Transmission: Range: m= <cml>, <vsr>, <scs>, <sel>+VSM=m Compression Method Selection: cont +VSP=mfactory default is ‘0’ +VTS=m noneCommand DefaultDescription DTMF and Tone Generation: contS-Registers S-RegistersTable 26. S-RegisterCommand Descriptions 536EX Chipset Developer’s Manual Intel ConfidentialS-Registers 536EX Chipset Developer’s Manual Intel ConfidentialS-Registers 536EX Chipset Developer’s Manual Intel ConfidentialS-Registers 536EX Chipset Developer’s Manual Table 27. Caller ID Tags for Formatted Reporting Caller IDCaller ID RING DATE = TIME = NMBR = NAME = DOE JOHN MESG = RING RING<DLE> R NMBR =Parallel Host Interface 16C450/16C550A UARTParallel Host Interface 16C450/16C550A UART Figure 11. UART Emulation in Intelsdb.VxDUART Transmitter Flow Diagram UART Receiver Flow DiagramREGISTER BIT NUMBERADDRESS NAME9.2.1Scratch Register SCR 9.2.2Modem Status Register MSRFigure 14. Scratch Register SCR Figure 15. Modem Status Register MSR9.2.3Line Status Register LSR Figure 16. Line Status Register LSR9.2.4Modem Control Register MCR 9.2.5Line Control Register LCRFigure 17. Modem Control Register MCR Figure 18. Line Control Register LCRFigure 19. FIFO Control Register FCR 9.2.6FIFO Control Register FCRRegister Table 28. Interrupt Control Functions 9.2.7Interrupt Identity Register IIRFigure 20. Interrupt Identity Register IIR 9.2.8Interrupt Enable Register IER Figure 21. Interrupt Enable Register IER9.2.9Transmitter Holding Register THR Figure 22. Transmitter Holding Register THR9.2.10Receiver Buffer Register RBR 9.2.11Divisor Latch Registers DLM and DLLFigure 23. Receiver Buffer Register RBR Figure 24. Divisor Latch Registers DLM and DLL9.3.2FIFO Polled Mode Operation 9.316C550A UART FIFO Operation9.3.1FIFO Interrupt Mode Operation 536EX Chipset Developer’s Manual Intel ConfidentialParallel Host Interface 16C450/16C550A UART
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