Intel MD566X 5. FAX CLASS 1 AT COMMANDS

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

72 Intel Confidential Programmer’s Guide

5. FAX CLASS 1 AT COMMANDS

The 56K FastPath family implements the EIA-578 data/fax Class 1 AT command set standard. This

AT command set allows a DTE (with Class 1 communication software) and a MD566X–based

modem to communicate with Group 3 fax machines. In addition, these chipsets provide fax identity

and test commands. Fax identity commands are described in Tab le 5-1; all o ther fax AT commands

are provided in Table5-3 on p age 76. This programmer’s guide should be used with the Class 1

Fax Application Note and the specifications for EIA/TIA-578, ITU-T T.30, and T.4. The Intel

Class 1 Fax Application Note shows several examples of how to use the fax AT commands and

how to originate and answer a fax call.

5.1 Fax Identity Commands

The fax identity commands are AT+F MFR?, AT +FMDL ?, AT+FM I?, AT +FM M?, AT +FM R?,

and AT+FR EV?. These commands respond back with modem manufacturer, product model, and

product revision information.

Table 5-1. Fax Identity Command Descriptions

Command Default Description

+FMFR?/+FMI? none

Identifies Modem Manufacturer: This command causes the DCE to send a

message to the DTE indicating the DCE manufacturer. This command is identi-

cal to AT+G MI?.

AT+FMFR?

Intel Corporation

OK

Note: The DTE manufacturer name can be changed with the firmware

configuration utility.

+FMDL?/+FMM? none

Identifies Product Model: This command causes the DCE to report the mo-

dem chipset name. This command is identical to ATI3 and AT+GMM?.

AT+FMDL?

MD56xx

OK

The modem responds with ‘MD566X’ for all chipsets that support V.42/MNP pro-

tocols.

Contents

Main MD566X 56K Data, Fax, and Voice Chipset Revision History Date Revision May 2001 Revise layout. July 2001 Update for V.92 Programmers Guide Intel Confidential CONVENTIONS Abbreviations Acronyms Acronym Definition (Continued) Programmers Guide Intel Confidential 1. INTRODUCTION Table 1-1. Intel V.90/V.92 56K Chipsets 1.1 V.92, V.90 and V.34 Data Modes 1.2 Modem Connection Overview Programmers Guide Intel Confidential Table 1-2. DTE-to-DCE Data Rates for Each Mode Table 1-3. DCE-to-DCE Data Rates for Each Mode 2. AT COMMAND SUMMARY TABLES Table 2-1. Data Mode Command Summary Note Command Function Default Range Reported by &Vn 56K V.92 Data, Fax, and Voice Chipset Note Command Function Default Range Reported by &Vn Page Page Page Page 14 Intel Confidential Programmers Guide Table 2-2. V.44 / V.42 / V.42 bis MNP Command Summary Note Command Function Default Range Reported by &Vn Programmers Guide Intel Confidential Table 2-2. V.44 / V.42 / V.42 bis MNP Command Summary (Continued) Note Command Function Default Range Reported by &Vn Page Programmers Guide Intel Confidential Table 2-3. Fax Identity Command Summary Table 2-4. Fax Class 1 Command Summary Table 2-5. IS-101 Voice Command Summary 18 Intel Confidential Programmers Guide Table 2-5. IS-101 Voice Command Summary (Continued) Table 2-6. Voice DTEDCE Character Pairs Response Hex Code Function Programmers Guide Intel Confidential Table 2-7. Voice DTEDCE Character Pairs Response Hex Code Function 20 Intel Confidential Programmers Guide Table 2-8. Dial Modifiers Command Function Note R egister Function Default Range Units Table 2-9. S-Register Summary Reported by &Vn Programmers Guide Intel Confidential Table 2-9. S-Register Summary (Continued) Table 2-10. V.90/V.92 Mode DCE-to-ISP Response Codes 22 Intel Confidential Programmers Guide Table 2-11. V.34 Mode DCE-to-DCE Response Codes Verbose Code Numeric Code Table 2-12. DTE-to-DCE Data Rate Response Codes Verbose Code Numeric Code Programmers Guide Intel Confidential Table 2-13. Manufacturing-Only Command Summary 3. BASIC DATA MODE AT COMMANDS 3.1 Using AT Commands to Access the S-Registers [Sn?, Sn=x, ?] 3.2 Modem Responses and Command Echo [En, Vn, Xn, Wn, Qn] Programmers Guide Intel Confidential 3.3 Modem Reset and NVRAM Commands [DS=n, Zn, &F, &Vn, &Yn, &Wn, &Zn=x] Table 3-1. Product Identification Information 3.5 Establishing a Modem Connection [A, D, DS = n, S0] 3.6 Online Command Mode [Escape Codes, On] 3.7 Hanging Up [Hn, S10, Zn, &D2] 3.8 Modem-to-Modem Connection Data Rates Page Page Page Page Programmers Guide Intel Confidential Table 3-2. Supported Modulation Types Page Programmers Guide Intel Confidential Table 3-3. Resulting DCE-to-DCE Connection Rates with Non-Default Value s 3.9 Diagnostic Testing [S18, &Tn] 3.9.1 Local Analog Loopback [AT&T1] LOCAL MODEM Figure 3-2. Local Analog Loopback Test Local Modem (or Test Modem) Page 3.9.2 Local Analog Loopback With Self-Test [AT&T8] Figure 3-3. Local Analog Loopback with Self-Test Local Modem (or Test Modem) Programmers Guide Intel Confidential 3.10 AT Escape Sequences 3.10.1 Time-Independent Escape Sequence Licensing Requirements for Hayes Escape Sequence 3.10.2 Hayes Escape Sequence En, Hn, Mn, On, Qn, Sn, Vn, Xn, and & commands (except &Tn and &F) Page Page Page Page Programmers Guide Intel Confidential (cont.) 0 Identification/Checksum Option: (cont.) Page Page Programmers Guide Intel Confidential Wn 0 Page Page Page Page Page Page Page Page Page Page Page Page Page Programmers Guide Intel Confidential 4. ERROR CORRECTION AND DATA COMPRESSION Operating Modes Table 4-1. Resulting \Nn Connection Types Page Page Page Page Page Page +DS44=m 3,0,0,471, 972,140, 140,1884, 3768 5. FAX CLASS 1 AT COMMANDS 5.1 Fax Identity Commands Table 5-1. Fax Identity Command Descriptions Programmers Guide Intel Confidential Table 5-1. Fax Identity Command Descriptions 5.2 Fax Clas s 1 Commands Figure 5-1. T.30 HDLC Frame Format Table 5-2. <mod> Selection Table Programmers Guide Intel Confidential Figure 5-2. CLASS 1 DTE-Generated HDLC Frame Information (AT+FTH=<mod>) Figure 5-3. CLASS 1 DTE Reception of HDLC Frame Information (AT+FRH=<mod>) Table 5-3. Fax Mode Command Descriptions Page Page 6. IS-101 VOICE MODE AT COMMANDS 6.1 DTMF Detection 6.2 Relay Control Table 6-1. Voice Mode Command Descriptions Page Page Page Page Programmers Guide Intel Confidential Table 6-1. Voice Mode Command Descriptions (Continued) 15678 2 } } Page Programmers Guide Intel Confidential +VLS=n 0 Preassigned Voice I/O Labels Table 6-1. Voice Mode Command Descriptions (Continued) <label> Primitive Code Description Voice I/O Primitive Codes Table 6-1. Voice Mode Command Descriptions (Continued) Page Page Page Page Page Page Page Page Page Page Programmers Guide Intel Confidential 7. S-REGISTERS Table 7-1. S-Register Command Descriptions Page Page Page Page Page Programmers Guide Intel Confidential S33 10 Page Page Programmers Guide Intel Confidential 8. CALLER ID Table 8-1. Caller ID Tags for Formatted Reporting Page Programmers Guide Intel Confidential 9. MANUFACTURING-ONLY COMMANDS Table 9-1. Manufacturing-Only Command Descriptions Page Page Page Page Page 10. PARALLEL HOST INTERFACE 16C450/16C550A UART Figure 10-1. FIFO Buffers for Transmitter and Receiver 120 Intel Confidential Programmers Guide Table 10-1. Parallel Host Interface UART Register Bit Assignments Note: These bits are always 0 in 16C450 mode. 10.1 UART Register Definitions 10.1.1 Scratch Register (SCR) Register 5 10.1.2 Modem Status Register (MSR) 10.1.3 Line Status Register (LSR) 10.1.4 Modem Control Register (MCR) Register 4 10.1.5 Line Control Register (LCR) Register 3 10.1.6 FIFO Control Register (FCR) Register 2 Programmers Guide Intel Confide ntial 125 10.1.7 Interrupt Identity Register (IIR) Table 10-2. Interrupt Control Functions FIFO Mode Only Interrupt Identification Register Interrupt Source and Reset Functions FIFO EN FIFO EN 0 VDMA Int. ID 2 Int. ID 1 Int. ID 0 Int. Pen. 10.1.8 Interrupt Enable Register (IER) 10.1.9 Transmitter Holding Register (THR) 10.1.10Receiver Buffer Register (RBR) Register 1 10.1.11Divisor Latch Registers (DLM and DLL) 10.2 16C550A UART FIFO Operation 10.2.1 FIFO Interrupt Mode Operation Table 10-3. Programmable Data Rates Register 1 10.2.2 FIFO Polled Mode Operation