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Programmer’s Guide
MD566X
July 2001
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MD566X — 56K Data, Fax, and Voice Chipset Revision History Date Revision May 2001 Revise layout. July 2001 Update for V.92 Information in this document is provided in connection with Intel products. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Intel’s Terms and Conditions of Sale for such products, Intel assumes no liability whatsoever, and Intel disclaims any express or implied warranty, relati
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56K V.92 Data, Fax, and Voice Chipset CONVENTIONS This section lists conventions used in this data book. Note: S-registers and AT commands are in bold typeface throughout this document. Abbreviations Symbol Units of measure °C degree Celsius µF microfarad µs microsecond (1,000 nanoseconds) Hz hertz (cycle per second) K (memory) kilobit (1,024 bits) kbits/second kilobit (1,000 bits) per second kHz kilohertz kΩ kilohm Mbyte (memory) megabyte (1,048,576 bytes) MHz megahertz (1,000 kilohertz) mA
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56K V.92 Data, Fax, and Voice Chipset Acronyms Acronym Definition (Continued) DRAM dynamic random-access memory EPROM electrically programmable read-only memory FIFO first in/first out HDLC high-level data link control ISA industry standard architecture LSB least-significant bit MSB most-significant bit NVRAM non-volatile random-access memory PPP point-to-point protocol RAM random-access memory ROM read-only memory R/W read/write SDLC synchronous data link control SQFP shrink quad flat pack S
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56K V.92 Data, Fax, and Voice Chipset 1. INTRODUCTION The MD566X Programmer’s Guide describes the software interface of Intel’s V.90/V.92 56K solution. The programmer’s guide includes the AT command sets for data, fax, and voice and the 16C450/16C550A UART emulation. The programmer’s guide should be used with the following Intel publications: the MD566X Datasheet, the IS-101 Voice Application Note, and the Class 1 Fax Application Note. Please note that supported AT commands are firmware rev
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56K V.92 Data, Fax, and Voice Chipset 1.1 V.92, V.90 and V.34 Data Modes Intel® MD566X chipsets default to the ITU-T V.90 or V.92 data transmission mode depending on the firmware version. The V.90/V.92 mode allows receive data rates of up to 56 kbps over the PSTN (public switched telephone network) only in connections with equipment-compatible ISPs (Internet Service Providers); however, FCC regulations limit receive speeds to 53,333 kbps due to excessive power demands at higher speeds. In mo
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56K V.92 Data, Fax, and Voice Chipset Examples of modem responses: OK ERROR CONNECT 28800 0 In the online state, the DCE is off-hook and communicating with a remote modem. Any data sent from the DTE to the DCE is transmitted to the remote modem. Similarly, any data that the DCE receives from the remote modem is transmitted to the DTE. Note: In the online state, the DCE does not ‘echo-back’ any of the data that the DTE sent to the DCE. The modem recognizes AT commands from the DTE at any v
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56K V.92 Data, Fax, and Voice Chipset 2. AT COMMAND SUMMARY TABLES This section contains summary tables of all AT commands, S-registers, and manufacturing-only commands. These commands are described fully in the relevant sections of the Programmer’s Guide. Table 2-1. Data Mode Command Summary Reported by Note Command Function Default Range &Vn ** A/ Repeat last command none – no A Answer none – no * Bn Select ITU-T or Bell* 1 0–3 yes Selects ITU-T V.22 at 1200 bps and ITU-T B0 V.21
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56K V.92 Data, Fax, and Voice Chipset Table 2-1. Data Mode Command Summary (Continued) Reported by Note Command Function Default Range &Vn I4 Reserved Reserved for modem chip hardware configu- I5 ration I6 Country code I7 Version of board manufacturer firmware I8 Modem firmware features Modem board configuration — bits set by I10 board manufacturer Modem board configuration — bits set by I11 board manufacturer I12 Reserved I13 Reserved I14 SAFE device I20 Intel silicon version
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56K V.92 Data, Fax, and Voice Chipset Table 2-1. Data Mode Command Summary (Continued) Reported by Note Command Function Default Range &Vn Q1 Disables result codes Sn Select an S-register none 0–37 no n=0–37 Sn=x Write to an S-register none no x=0–255 Sn? Read from an S-register none 0–33 no * T Select tone dialing none – no * Vn Result code form 1 0, 1 yes V0 Choose numeric form V1 Choose verbose (text) form * Wn Response code data rate 0 0, 2–4 yes W0 Reports DTE speed response co
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56K V.92 Data, Fax, and Voice Chipset Table 2-1. Data Mode Command Summary (Continued) Reported by Note Command Function Default Range &Vn &D0 In Async mode, modem ignores DTR Modem switches from data mode to com- &D1 mand mode when an on-to-off transition of DTR occurs When DTR switches off, the modem goes on- &D2 hook and disables Auto-answer mode; when DTR switches on, auto-answer is enabled Turning off DTR re-initializes the modem and &D3 resets values except UART registers &F Load
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56K V.92 Data, Fax, and Voice Chipset Table 2-1. Data Mode Command Summary (Continued) Reported by Note Command Function Default Range &Vn &Wn Stored active profile 0 0, 1 no &W0 Store in user profile 0 &W1 Store in user profile 1 * &Yn Select stored profile on power up 0 0, 1 yes &Y0 Recall stored profile 0 on power-up &Y1 Recall stored profile 1 on power-up n = 0–3 Store telephone number (up to 30 digits) to x = 0–9 A B C &Zn=x none no location “n” (0–3) D # * T P R W @ , ! ; * %E
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56K V.92 Data, Fax, and Voice Chipset Programmer’s Guide Intel Confidential 13
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56K V.92 Data, Fax, and Voice Chipset ∗ Table 2-2. V.44 / V.42 / V.42 bis MNP Command Summary Reported Note Command Function Default Range by &Vn * %An Set auto-reliable fallback character 13 0–127 yes * %Cn MNP 5 data compression control 1 0, 1 yes %C0 No compression %C1 Enables MNP5 data compression * \An MNP block size 3 0–3 yes \A0 Maximum 64 characters \A1 Maximum 128 characters \A2 Maximum 192 characters \A3 Maximum 256 characters * \Bn Transmit break none 0–9 no * \Cn Set auto
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56K V.92 Data, Fax, and Voice Chipset ∗ Table 2-2. V.44 / V.42 / V.42 bis MNP Command Summary (Continued) Reported Note Command Function Default Range by &Vn \K2, 3 Nondestructive/expedited \K4, 5 Nondestructive/nonexpedited * \Nn Set operating mode 3 0–4 yes Selects Buffer (Normal) mode with speed \N0, \N1 buffering \N2 Selects MNP Reliable mode \N3 Selects V.42 Auto-reliable mode \N4 Selects V.42 Reliable mode \O Originate reliable link none – no * \Qn Set serial port flow control
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56K V.92 Data, Fax, and Voice Chipset * Value saved in NVRAM. 16 Intel Confidential Programmer’s Guide
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56K V.92 Data, Fax, and Voice Chipset Table 2-3. Fax Identity Command Summary Reported Command Function Default Range by &Vn +FMDL? Identifies product model none – no +FMFR? Identifies modem manufacturer none – no +FMI? Identifies modem manufacturer none – no +FMM? Identifies product model none – no Identifies product version num- +FMR? none – no ber Identifies product version num- +FREV? none – no ber Table 2-4. Fax Class 1 Command Summary Reported Command Function Default Range by &Vn
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56K V.92 Data, Fax, and Voice Chipset Table 2-5. IS-101 Voice Command Summary (Continued) +VGT=n Volume selection 128 121–131 no +VIP Initialize parameter – – no +VIT=n DTE/DCE inactivity timer 0 0–255 no +VLS=n Relay/speaker control 0 0–16 no +VNH=n Automatic hang-up control 0 0–2 no +VRA=n Ringback-goes-away timer 50 0–50 no +VRN=n Ringback-never-appeared timer 10 0–255 no +VRX Record mode none – no +VSD=m Silence detection (quiet and silence) 128, 50 See note no +VSM=m 140, 8000, 0, Compress
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56K V.92 Data, Fax, and Voice Chipset Table 2-7. Voice DTE←DCE Character Pairs Response Hex Code Function 10 Single character in the data stream 1A in data stream 3 End of Record mode data X 58 Packet header for ‘Complex Event Detection Report’ Packet terminator for the ‘Complex Event Detection .2E Report’ / 2F Start of DTMF tone shielding 7F DTMF transition to off 0–9 30–39 DTMF tones 0–9 A–D 41–44 DTMF tones A–D * 2A DTMF tone * # 23 DTMF tone
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56K V.92 Data, Fax, and Voice Chipset Table 2-8. Dial Modifiers Command Function 0 to 9 Dialing digits A, B, C, D, *, # Tone dial characters P Pulse dial R Reverse Originate mode S=n Dial NVRAM telephone number T Tone dial W Wait for dial tone ,Pause ! Flash hook @ Wait for quiet answer ; Return to command state - ( ) Ignored by modem L Redial last number Note: The manufacturing-only S-registers S91 and S92 are listed in the Manufacturing-Only Commands in Table 2-13 on page 23. * Value saved
