SmartHSF Mobile Modem Device Set Data Set

SmartHSF Mobile Modem Data Sheet

Conexant

100553B

Revision History

Revision

Date

Comments

7/28/2000

Revision B release.

4/19/2000

Initial release.

Conexant Systems, Inc.

Information in this document is provided in connection with Conexant Systems, Inc. (“Conexant”) products. These materials are provided by

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omissions in these materials. Conexant may make changes to specifications and product descriptions at any time, without notice. Conexant

makes no commitment to update the information and shall have no responsibility whatsoever for conflicts or incompatibilities arising from

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SmartHSF Mobile Modem Data Sheet

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Conexant

iii

Contents

REVISION HISTORY .....................................................................................................................................................II

INTRODUCTION................................................................................................................................................. 1-1

1.1

OVERVIEW .............................................................................................................................................. 1-1

1.2

FEATURES .............................................................................................................................................. 1-4

1.2.1

General Modem Features .......................................................................................................... 1-4

1.2.2

PCI Bus Host Interface Features ............................................................................................... 1-5

1.2.3

SmartDAA Features ................................................................................................................... 1-5

1.2.4

Applications................................................................................................................................ 1-5

1.3

TECHNICAL OVERVIEW......................................................................................................................... 1-5

1.3.1

General Description ................................................................................................................... 1-5

1.3.2

Host Modem Software................................................................................................................ 1-5

1.3.3

Operating Modes........................................................................................................................ 1-6

Data/Fax Modes ................................................................................................................ 1-6

Synchronous Access Mode - Video Conferencing............................................................ 1-6

TAM Mode......................................................................................................................... 1-6

Voice/Speakerphone Mode (S Models)............................................................................. 1-6

Personal Digital Cellular High Speed Mode (C Models).................................................... 1-6

PDC Packet Mode (C Models) .......................................................................................... 1-7

PHS Mode (C Models) ...................................................................................................... 1-7

cdmaOne Data Mode IS95A (C Models)........................................................................... 1-7

cdmaOne Data Packet Mode IS95B (C Models)............................................................... 1-7

GSM Mode (C Models)...................................................................................................... 1-7

1.3.4

Reference Design ...................................................................................................................... 1-7

1.4

HARDWARE DESCRIPTION ................................................................................................................... 1-7

1.4.1

CX11250 Host Side Device........................................................................................................ 1-7

1.4.2

Digital Isolation Barrier............................................................................................................... 1-8

1.4.3

CX20463 SmartDAA Line Side Device ...................................................................................... 1-8

1.4.4

CX20437 Voice Codec (S Models) ............................................................................................ 1-8

TECHNICAL SPECIFICATIONS......................................................................................................................... 2-1

2.1

ESTABLISHING DATA MODEM CONNECTIONS ................................................................................... 2-1

Dialing ............................................................................................................................... 2-1

Modem Handshaking Protocol .......................................................................................... 2-1

Call Progress Tone Detection ........................................................................................... 2-1

Answer Tone Detection..................................................................................................... 2-1

Ring Detection................................................................................................................... 2-1

Billing Protection ............................................................................................................... 2-1

Connection Speeds........................................................................................................... 2-1

Automode.......................................................................................................................... 2-1

2.2

DATA MODE ............................................................................................................................................ 2-1

Speed Buffering (Normal Mode) ....................................................................................... 2-1

DTE-to-Modem Flow Control............................................................................................. 2-1

Escape Sequence Detection............................................................................................. 2-1

GSTN Cleardown (V.90/K56flex, V.34, V.32 bis, V.32)..................................................... 2-2

Fall Forward/Fallback (V.90/K56flex, V.34/V.32 bis/V.32) ................................................ 2-2

Retrain............................................................................................................................... 2-2

2.3

ERROR CORRECTION AND DATA COMPRESSION............................................................................. 2-2

V.42 Error Correction ........................................................................................................ 2-2

MNP 2-4 Error Correction.................................................................................................. 2-2

V.42 bis Data Compression .............................................................................................. 2-2

MNP 5 Data Compression ................................................................................................ 2-2

2.4

FAX CLASS 1 OPERATION..................................................................................................................... 2-2

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2.5

VOICE/TAM MODE .................................................................................................................................. 2-2

2.5.1

Online Voice Command Mode ................................................................................................... 2-2

2.5.2

Voice Receive Mode .................................................................................................................. 2-3

2.5.3

Voice Transmit Mode ................................................................................................................. 2-3

2.5.4

Speakerphone Modes ................................................................................................................ 2-3

2.6

FULL-DUPLEX SPEAKERPHONE (FDSP) MODE .................................................................................. 2-3

2.7

CALLER ID............................................................................................................................................... 2-3

2.8

MULTIPLE COUNTRY SUPPORT (W MODELS) .................................................................................... 2-3

2.8.1

OEM Programmable Parameters............................................................................................... 2-3

2.8.2

Blacklist Parameters .................................................................................................................. 2-4

2.9

DIAGNOSTICS......................................................................................................................................... 2-4

2.9.1

Commanded Tests..................................................................................................................... 2-4

2.10 LOW POWER SLEEP MODE .................................................................................................................. 2-4

HARDWARE INTERFACE.................................................................................................................................. 3-1

3.1

CX11250 HSD HARDWARE PINS AND SIGNALS.................................................................................. 3-1

3.1.1

HSD Signal Interfaces................................................................................................................ 3-1

PCI Bus/Mini PCI Host Interface ....................................................................................... 3-1

Power Detection and Switching ........................................................................................ 3-1

Serial EEPROM Interface.................................................................................................. 3-1

LSD Interface (Through DIB) ............................................................................................ 3-2

VC Interface (S Models).................................................................................................... 3-2

Telephone Handset Interface (S Models) ......................................................................... 3-2

Call Progress Speaker Interface ....................................................................................... 3-2

PDC/PDC packet Interface ............................................................................................... 3-2

PHS Interface.................................................................................................................... 3-2

CDMA Interface................................................................................................................. 3-3

GSM Interface ................................................................................................................... 3-3

3.1.2

HSD Interface Signals, Pin Assignments, and Signal Definitions .............................................. 3-3

3.2

CX20463 S

MART

DAA LSD HARDWARE PINS AND SIGNALS.............................................................. 3-16

3.2.1

LSD Signal Interfaces .............................................................................................................. 3-16

HSD Interface (Through DIB).......................................................................................... 3-16

Telephone Line Interface ................................................................................................ 3-16

3.2.2

LSD Interface Signals, Pin Assignments, and Signal Definitions............................................. 3-16

3.3

CX20437 VC HARDWARE PINS AND SIGNALS (S MODELS) ............................................................ 3-21

3.3.1

VC Signal Interfaces ................................................................................................................ 3-21

Speakerphone Interface.................................................................................................. 3-21

Telephone Handset/Headset Interface ........................................................................... 3-21

HSD Interface.................................................................................................................. 3-21

3.3.2

VC Interface Signals, Pin Assignments, and Signal Definitions............................................... 3-21

3.4

ELECTRICAL ENVIRONMENTAL, AND TIMING SPECIFICATIONS .................................................... 3-27

3.4.1

Operating Conditions, Absolute Maximum Ratings, and Power Requirements ....................... 3-27

Caution: Handling CMOS Devices .................................................................................. 3-27

3.4.2

SERIAL EEPROM INTERFACE TIMING ................................................................................. 3-29

HOST SOFTWARE INTERFACE ....................................................................................................................... 4-1

4.1

PCI CONFIGURATION REGISTERS ....................................................................................................... 4-1

4.1.1

0x00 - Vendor ID Field ............................................................................................................... 4-2

4.1.2

0x02 - Device ID Field................................................................................................................ 4-2

4.1.3

0x04 - Command Register ......................................................................................................... 4-2

4.1.4

0x06 - Status Register................................................................................................................ 4-3

4.1.5

0x08 - Revision ID Field ............................................................................................................. 4-3

4.1.6

0x09 - Class Code Field............................................................................................................. 4-3

4.1.7

0x0D - Latency Timer Register .................................................................................................. 4-3

4.1.8

0x0E - Header Type Field .......................................................................................................... 4-3

4.1.9

0x28 - CIS Pointer Register ....................................................................................................... 4-3

4.1.10

0x2C - Subsystem Vendor ID Register ...................................................................................... 4-3

4.1.11

0x2E- Subsystem ID Register .................................................................................................... 4-4

4.1.12

0x34 - Cap Ptr ............................................................................................................................ 4-4

4.1.13

0x3C - Interrupt Line Register .................................................................................................... 4-4

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4.1.14

0x3D - Interrupt Pin Register...................................................................................................... 4-4

4.1.15

0x3E - Min Grant Register.......................................................................................................... 4-4

4.1.16

0x3F - Max Latency Register ..................................................................................................... 4-4

4.1.17

0x40 - Capability Identifier.......................................................................................................... 4-4

4.1.18

0x41 - Next Item Pointer ............................................................................................................ 4-4

4.1.19

0x42 - PMC - Power Management Capabilities ......................................................................... 4-5

4.1.20

0x44 - PMCSR - Power Management Control/Status Register (Offset = 4) ............................... 4-5

4.1.21

0x46 - PMCSR_BSE - PMCSR PCI to PCI Bridge Support Extensions..................................... 4-6

4.1.22

0x47 - Data................................................................................................................................. 4-6

4.2

BASE ADDRESS REGISTER .................................................................................................................. 4-6

4.3

SERIAL EEPROM INTERFACE ............................................................................................................... 4-7

4.3.1

Supported EEPROM Sizes ........................................................................................................ 4-7

4.3.2

Definitions .................................................................................................................................. 4-8

Device ID Register ............................................................................................................ 4-8

Vendor ID Register............................................................................................................ 4-8

Subsystem Vendor ID and Subsystem Device Register ................................................... 4-8

Min_Gnt Register .............................................................................................................. 4-8

Max_Lat Register .............................................................................................................. 4-8

PMC [8:6] and PME DRV Type ......................................................................................... 4-9

Class Code Register (Class Code, Sub-class Code, Prog. I/F) ........................................ 4-9

CardBus CIS Pointer (CardBus CIS pointer High, CardBus CIS pointer Low) (Not

Used)................................................................................................................................. 4-9

Data Scale PMCSR[14:13] (D0C, D1C, D2C, D3C, D0D, D1D, D2D, D3D) ..................... 4-9

Data Register (D3, D2, D1, D0 power consumed and D3, D2, D1, D0 power

dissipated)......................................................................................................................... 4-9

Load CISRAM Count (CIS _SIZE) (Not Used) .................................................................. 4-9

PACKAGE DIMENSIONS................................................................................................................................... 5-1

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Figures

Figure 1-2. SmartHSF Modem Major Interfaces....................................................................................................................... 1-3

Figure 3-1. CX11250 HSD Hardware Interface Signals ........................................................................................................... 3-4

Figure 3-2. CX11250 HSD 100-Pin TQFP Pin Signals............................................................................................................. 3-5

Figure 3-3. CX20463 LSD Hardware Interface Signals .......................................................................................................... 3-17

Figure 3-4. CX20463 LSD 32-Pin TQFP Pin Signals ............................................................................................................. 3-17

Figure 3-5. CX20437 VC Hardware Interface Signals ............................................................................................................ 3-22

Figure 3-6. CX20437 VC 32-Pin TQFP Pin Signals ............................................................................................................... 3-22

Figure 3-7. Waveforms - Serial EEPROM Interface ............................................................................................................... 3-29

Figure 5-1. Package Dimensions - 100-Pin TQFP ................................................................................................................... 5-1

Figure 5-2. Package Dimensions - 32-pin TQFP...................................................................................................................... 5-2

Tables

Table 1-1. SmartHSF Modem Models and Functions............................................................................................................... 1-2

Table 3-1. CX11250 HSD 100-Pin TQFP Pin Signals .............................................................................................................. 3-6

Table 3-2. CX11250 HSD Pin Signal Definitions ...................................................................................................................... 3-9

Table 3-3. Cell Phone/Telephone Line Interface Signals ....................................................................................................... 3-15

Table 3-4. CX20463 LSD 32-Pin TQFP Pin Signals............................................................................................................... 3-18

Table 3-5. CX20463 LSD Pin Signal Definitions .................................................................................................................... 3-19

Table 3-6. CX20463 LSD DC Electrical Characteristics ......................................................................................................... 3-20

Table 3-7. CX20437 VC 32-Pin TQFP Pin Signals................................................................................................................. 3-23

Table 3-8. CX20437 VC Pin Signal Definitions ...................................................................................................................... 3-24

Table 3-9. CX20437 VC Digital Electrical Characteristics ...................................................................................................... 3-26

Table 3-10. CX20437 VC Analog Electrical Characteristics................................................................................................... 3-26

Table 3-11. Operating Conditions........................................................................................................................................... 3-27

Table 3-12. Absolute Maximum Ratings................................................................................................................................. 3-27

Table 3-13. Current and Power Requirements ....................................................................................................................... 3-28

Table 3-14. Timing - Serial EEPROM Interface...................................................................................................................... 3-29

Table 4-1. PCI Configuration Registers.................................................................................................................................... 4-1

Table 4-2. Command Register ................................................................................................................................................. 4-2

Table 4-3. Status Register........................................................................................................................................................ 4-3

Table 4-4. Power Management Capabilities (PMC) Register ................................................................................................... 4-5

Table 4-5. Power Management Control/Status Register (PMCSR) .......................................................................................... 4-5

Table 4-6. HSD Address Map................................................................................................................................................... 4-6

Table 4-7. EEPROM Content for 256 Words by 16 Bits per Word........................................................................................... 4-7

Table 4-8. EEPROM Content for 128 Words by 16 Bits per Word........................................................................................... 4-7

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1-1

1. INTRODUCTION

1.1 OVERVIEW

The Conexant

 SmartHSF Host-Processed (SoftK56) V.90/K56flex Modem Device Family with SmartDAA technology

supports analog data up to 56 kbps, analog fax to 14.4 kbps, telephone answering machine (TAM), and PCI Bus/Mini PCI

host interface operation. In addition, the device set optionally supports cellular phone interface (PDC high speed/PDC packet

data, PHS data, CDMA/CDMA Packet data, GSM data) or voice/speakerphone. These modem devices meet the size and

power requirements of the mobile environment. Table 1-1 lists the available models.

The modem operates with PSTN telephone lines in the U.S./Japan/Canada and, optionally, worldwide. Optional cellular

interface supports Japanese PDC (Personal Digital Cellular) and PHS (Personal Handyphone System) phones, GSM (Global

System for Mobile Communications) phones, and cdmaOne (IS-95A/IS-95B) phones. Modem and cellular data protocol

software is provided.

Conexant's SmartDAA technology (patent pending) eliminates the need for a costly line transformer, relays, and opto-

isolators typically used in discrete DAA (Data Access Arrangement) implementations. The SmartDAA architecture also

simplifies product implementation by eliminating the need for country-specific board configurations enabling worldwide

homologation of a single modem board design.

The SmartDAA system-powered DAA operates reliably without drawing power from the line, unlike line-powered DAAs which

operate poorly when line current is insufficient due to long lines or poor line conditions. Enhanced features, such as

monitoring of local extension status without going off-hook, are also supported.

Incorporating Conexant’s proprietary Digital Isolation Barrier (DIB) design (patent pending) and other innovative DAA

features, such as Digital PBX line protection and reporting, the SmartDAA architecture simplifies application design,

minimizes layout area, and reduces component cost.

For over a decade, Conexant has assisted customers with DAA technology and homologation. This expertise and system

level approach has been leveraged in this product.

The SmartHSF device set, consisting of a CX11250 Host Side Device (HSD) in a 100-pin TQFP and a CX20463 SmartDAA

Line Side Device (LSD) in a 32-pin TQFP, supports data/fax/TAM operation with host software-based digital signal processing

and cell phone/DAA/telephone line interface functions.

The optional CX20437 Voice Codec (VC), in a 32-pin TQFP, supports voice/full-duplex speakerphone (FDSP) operation with

interfaces to a microphone, speaker, and telephone handset/headset. Because some cellular interface signals and CX20437

VC interface signals share the same CX11250 HSD pins, speakerphone configuration does not support the cellular interface.

The major hardware signal interfaces are identified in Figure 1-1.

In V.90/K56flex data mode, the modem can receive data at speeds up to 56 kbps from a digitally connected V.90 or K56flex-

compatible central site modem. In this mode, the modem can transmit data at speeds up to V.34 rates.

In V.34 data mode, the modem operates at line speeds up to 33.6 kbps. When applicable, error correction (V.42/MNP 2-4)

and data compression (V.42 bis/MNP 5) maximize data transfer integrity and boost average data throughput. Non-error-

correcting mode is also supported.

Fax Group 3 send and receive rates are supported up to 14.4 kbps with T.30 protocol.

V.80 synchronous access mode supports host-controlled communication protocols, e. g., H.324 video conferencing.

Audio recording and playback over the telephone line interface using A-Law,

µ-Law, or linear coding at 8 kHz sample rate

supports applications such as remote digital telephone answering machine (TAM).

This designer's guide describes the modem hardware capabilities and identifies the supporting commands. Commands and

parameters are defined in the Commands Reference Manual (Doc. No. 100498, formerly identified as Doc. No. 1118).

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Table 1-1. SmartHSF Modem Models and Functions

Model/Order/Part Numbers

Supported Hardware Functions (See Note 3)

Marketing Name

Device Set

Order No.

Host Side

Device (HSD)

[100-Pin TQFP]

Part No.

Line Side

Device (LSD)

[32-Pin TQFP]

Part No.

Voice Codec

(VC)

[32-Pin TQFP]

Part No.

Host

Bus

DAA

Type

PDC HS/

PDC Packet,

PHS,

CDMA, GSM

V.90/K56flex

Data,

V.17 Fax,

TAM

World-

wide

Voice/

FDSP

SmartHSF/MC-PCI

DS56-L155-111

11250-11

20463-12

—

PCI

US/J/C

—

SmartHSF/MS-PCI

DS56-L155-121

11250-11

20463-12

20437-11

PCI

US/J/C

—

SmartHSF/MWC-PCI

DS56-L155-131

11250-11

20463-11

—

PCI

—

SmartHSF/MWS-PCI

DS56-L155-141

11250-11

20463-11

20437-11

PCI

NOTES:

1. Model options:

Cellular

Mobile

Voice/full-duplex speakerphone (FDSP)

Worldwide support including U.S./Japan/Canada

-PCI

PCI Bus/Mini PCI interface

2. Supported functions (Y = Supported; – = Not supported):

TAM

Telephone answering machine (Voice playback and record through telephone line)

FDSP

Full-duplex speakerphone and voice playback and record through telephone line, handset, and mic/speaker

PDC HS

Personal Digital Cellular High Speed data

PDC Packet

Personal Digital Cellular Packet data

PHS

Personal Handyphone System

CDMA

Code Division Multiple Access

GSM

Global System for Mobile Communications data

3. Software configuration/functions determined by Device ID programmed into EEPROM (see Section 4.3).

4. For ordering purposes, the CX prefix may not be included in the part number for some devices. Also, the CX prefix may not appear in the part number as branded on

some devices.

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1.2 FEATURES

1.2.1

General Modem Features

• V.90 data modem with receive rates up to 56k bps and send rates up to V.34 rates

−

ITU-T V.90, K56flex, V.34 (33.6 kbps), V.32 bis, V.32, V.22 bis, V.22, V.23, and V.21; Bell 212A and 103

−

V.42 LAPM and MNP 2-4 error correction

−

V.42 bis and MNP 5 data compression

−

V.250 and V.251 commands

• V.17 fax modem with send and receive rates up to 14.4 kbps

−

V.17, V.29, V.27 ter, and V.21 channel 2

−

EIA/TIA 578 Class 1 and T.31 Class 1.0 commands

• Telephony/TAM

−

V.253 commands

−

8-bit

µ-Law/A-Law coding (G.711)

−

8-bit/16-bit linear coding

−

8 kHz sample rate

−

Concurrent DTMF, ring, and Caller ID detection

• V.80 synchronous access mode supports host-controlled communication protocols with H.324 interface support

• V.8/V.8bis and V.251 commands

• Cellular data hardware interface and software support (C models)

−

Protocol stacks for PDC high speed data, PDC packet data, PHS data, CDMA IS-95A/IS-95B data, and GSM data

−

API for customer-provided cellular data protocol stack

• Full-duplex Speakerphone (FDSP) Mode (S models)

−

Microphone and speaker interface

−

Telephone handset/headset interface

• Data/Fax/Voice call discrimination

• Host software/MMX-based digital signal processing

• Single configuration profile stored in host

• Operates in U.S./Japan/Canada

• Worldwide operation including U.S./Japan/Canada (W models)

−

Complies to TBR21 and other country requirements

−

Caller ID detection

• System compatibility

−

Windows 95/98, Windows NT 4.0, Windows 2000, and Windows Millennium (Windows Me) operating systems

−

Microsoft'/Intel PC 99 Windows Hardware Designer’s Guide-compliant

−

Advanced Configuration and Power Interface (ACPI)

−

Unimodem/V compliant

−

Pentium 166 MHz MMX-compatible PC or greater

−

16 Mbyte RAM or more

• Thin packages support low profile designs

−

CX11250 HSD: 100-pin TQFP (1.2 mm max. height)

−

CX20463 LSD: 32-pin TQFP (1.6 mm max. height)

−

CX20437 VC: 32-pin TQFP (1.6 mm max. height)

• +3.3V operation with +5V tolerant digital inputs

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1.2.2

PCI Bus Host Interface Features

• 32-bit PCI Bus host interface

−

Meets PCI Local Bus Specification Rev. 2.2

−

PCI Bus Mastering interface

−

33 MHz PCI clock support

• Supports Power Management

−

Meets PCI Bus Power Management Spec. Rev. 1.1

−

ACPI Power Management Registers

−

APM support

−

PME# support

−

Vaux/Vpci power switching support (-PCI model option)

−

VauxDET support

1.2.3 SmartDAA

Features

• Digital PBX line protection

• System side powered DAA operates under poor line current supply conditions

• Wake-on-ring

• Ring detection

• Line polarity reversal detection

• Line current loss detection

• Caller ID (CID) detect

• Pulse dialing

• Line-in-use detection – detects even while on-hook

• Remote hang-up detect – for efficient call termination

• Extension pickup detect

• Call waiting detection

• Meets worldwide DC VI Masks requirements (W models)

1.2.4 Applications

• Laptop, notebook, and handheld computers

• PCI Bus/Mini PCI embedded system boards

• PCI Bus/Mini PCI plug-in cards

1.3 TECHNICAL

OVERVIEW

1.3.1 General

Description

Modem operation, including dialing, call progress, telephone line interface, telephone handset interface, PDC High

Speed/GSM interface, voice/speakerphone interface, and host interface functions are supported and controlled through the

V.250, V.251, and V.253-compatible command set.

The modem hardware connects to the host processor via a PCI/Mini PCI bus interface. The OEM adds a crystal circuit,

EEPROM, DIB and LSD power rectifier and filter components, telephone line interface, optional telephone handset interface,

optional PDC high speed/GSM interface, optional voice/speakerphone interface, and other supporting discrete components

as required by the modem model and the application to complete the system.

1.3.2

Host Modem Software

The host modem software performs the following tasks:

1. General modem control, which includes command sets, fax Class 1, TAM, voice/speakerphone, error correction, data

compression, GSM protocol stacks, PDC high speed data protocol stacks and phone drivers, and operating system

interface functions.

2. Modem data pump signal processing, which includes data and facsimile modulation and demodulation, as well as voice

sample formatting, is performed by the host processor using Conexant SoftK56 technology.

3. SmartDAA control, which includes HSD SmartDAA Interface control, LSD configuration and control, telephone line

interface parameter control, and telephone line impedance control.

Configurations of the modem software are provided to support modem models listed in Table 1-1.

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1.3.3 Operating

Modes

Data/Fax Modes

In V.90/K56flex data modem mode, the modem can receive data from a digital source using a V.90- or K56flex-compatible

central site modem at line speeds up to 56 kbps. Asymmetrical data transmission supports sending data at line speeds up to

V.34 rates. This mode can fallback to full-duplex V.34 mode, and to lower rates, as dictated by line conditions.

In V.34 data modem mode, the modem can operate in 2-wire, full-duplex, asynchronous modes at line rates up to 33.6 kbps.

Data modem modes perform complete handshake and data rate negotiations. Using V.34 modulation to optimize modem

configuration for line conditions, the modem can connect at the highest data rate that the channel can support from 33600

bps down to 2400 bps with automatic fallback. Automode operation in V.34 is provided in accordance with PN3320 and in

V.32 bis in accordance with PN2330. All tone and pattern detection functions required by the applicable ITU or Bell standard

are supported.

In V.32 bis data modem mode, the modem can operate at line speeds up to 14.4 kbps.

In fax modem mode, the modem can operate in 2-wire, half-duplex, synchronous modes and can support Group 3 facsimile

send and receive speeds of 14400, 12000, 9600, 7200, 4800, and 2400 bps. Fax data transmission and reception performed

by the modem are controlled and monitored through the EIA/TIA-578 Class 1 or T.31 Class 1.0 command interface. Full

HDLC formatting, zero insertion/deletion, and CRC generation/checking are provided.

Synchronous Access Mode - Video Conferencing

V.80 Synchronous Access Mode (SAM) between the modem and the host/DTE is provided for host-controlled communication

protocols, e.g., H.324 video conferencing applications.

Voice-call-first (VCF) before switching to a videophone call is also supported.

TAM Mode

TAM Mode features include 8-bit

µ-Law, A-Law, and linear coding at 8 kHz sample rate. Full-duplex voice supports concurrent

voice receive and transmit. Tone detection/generation, call discrimination, and concurrent DTMF detection are also

supported. This mode supports applications such as digital TAM, voice annotation, and recording from and playback to the

telephone line. ADPCM (4-bit IMA) coding is also supported to meet Microsoft WHQL logo requirements.

TAM Mode is supported by three submodes:

1. Online Voice Command Mode supports connection to the telephone line or, for S models, a

microphone/speaker/handset/headset.

2. Voice Receive Mode supports recording voice or audio data input from the telephone line or, for S models, a

microphone/handset/headset.

3. Voice Transmit Mode supports playback of voice or audio data to the telephone line or, for S models, a

speaker/handset/headset.

Voice/Speakerphone Mode (S Models)

The S models include additional telephone handset, external microphone, and external speaker interfaces which support

voice and full-duplex speakerphone (FDSP) operation.

Hands-free full-duplex telephone operation is supported in Speakerphone Mode under host control. Speakerphone Mode

features an advanced proprietary speakerphone algorithm which supports full-duplex voice conversation with acoustic, line,

and handset echo cancellation. Parameters are constantly adjusted to maintain stability with automatic fallback from full-

duplex to pseudo-duplex operation. The speakerphone algorithm allows position independent placement of microphone and

speaker. The host can separately control volume, muting, and AGC in microphone and speaker channels.

NOTE: Because some cellular interface signals and CX20437 VC interface signals share the same CX11250 HSD pins,

speakerphone configuration does not support the cellular interface.

Personal Digital Cellular High Speed Mode (C Models)

Personal Digital Cellular (PDC) High Speed Mode, implemented in host software, includes V.42 bis data compression and

ARQ framing. A pass-through mode is also available to allow phone book data to be transferred to and from the PC at speeds

up to 9600 bps (e.g., for editing on the PC). PDC High Speed Mode is enabled by the +WS46=20 and +CPDCM=2 AT

commands and disabled by the +WS46=1 AT command.

SmartHSF Mobile Modem Data Sheet

100553B

Conexant

1-7

PDC Packet Mode (C Models)

PDC Packet Mode, implemented in host software as an optional mode of PDC, enables packet-based data communications

at 28.8 kbps. PDC Packet Data Mode is enabled by the +WS46=20 and +CPDCM=3 AT commands and disabled by the

+WS46=1 AT command.

PHS Mode (C Models)

PHS Data Mode is implemented in host software and supports a data rate of 32 kbps. PHS uses the PIAFS protocol stack.

PHS Data Mode is enabled by the +WS46=26 AT command and disabled by the +WS46=1 AT command.

cdmaOne Data Mode IS95A (C Models)

cdmaOne Data Mode is implemented in host software and supports data rates of 9.6 kbps and 14.4 kbps. cdmaOne Data

Mode is enabled by the +WS46=13 AT command and disabled by the +WS46=1 AT command.

cdmaOne Data Packet Mode IS95B (C Models)

cdmaOne Data Packet Mode is implemented in host software and supports a data rate of 64 kbps. cdmaOne Data Packet

Mode is enabled by the +WS46=13 AT command and disabled by the +WS46=1 AT command.

GSM Mode (C Models)

GSM Mode, implemented in host software, supports data and fax transfer. The supported features include:

• Data modem

−

V.21, V.23, V.22, V.22 bis, V.32

−

ISDN interoperability: 300 bps to 9600 bps

• Transparent asynchronous mode up to 9600 bps

• Non-transparent mode (RLP) up to 9600 bps

• Fax modem send and receive rate up to 9600 bps

• AT GSM commands (ETSI 07.07)

• GSM direct connect

• Driver interface for OEM-provided phone driver

• Built-in parallel host (16550A UART) interface

GSM mode is enabled by the +WS46=12 AT command and disabled by the +WS46=1 AT command.

1.3.4 Reference

Design

A Mini PCI Type IIIB data/fax/TAM reference design board is available to minimize application design time and costs.

The board is pretested to pass FCC Part 15, Part 68, and CTR 21 for immediate manufacturing.

A design package for the board is available in electronic form. The design package includes schematics, bill of materials

(BOM), vendor parts list (VPL), board layout files in Gerber format, and complete documentation.

The design can also be used for the basis of a custom design by the OEM to accelerate design completion for rapid market

entry.

1.4 HARDWARE

DESCRIPTION

SmartDAA

 technology (patent pending) eliminates the need for a costly analog transformer, relays, and opto-isolators that

are typically used in discrete DAA implementations. The programmable SmartDAA architecture simplifies product

implementation in worldwide markets by eliminating the need for country-specific components.

1.4.1

CX11250 Host Side Device

The CX11250 Host Side Device (HSD), packaged in a 100-pin TQFP, includes a PCI/Mini PCI Interface and a SmartDAA

Interface.

The PCI/Mini PCI interface connects directly to an embedded or external PCI/Mini PCI interface eliminating the need for

additional external logic components.

The SmartDAA Interface communicates with, and supplies power and clock to, the LSD through the DIB.