CX06833-42 参数 Datasheet PDF下载

CX06833-3x/4x SMXXD Modem Data Sheet

Contents

1. Introduction..........................................................................................................................................1-1

1.1

1.2

1.3

1.4

Overview ......................................................................................................................................................................... 1-1

Applications .................................................................................................................................................................... 1-2

Features .......................................................................................................................................................................... 1-4

1.3.1

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

Technical Overview......................................................................................................................................................... 1-5

1.4.1

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

1.4.2

MCU Firmware................................................................................................................................................ 1-6

1.4.3

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

1.4.3.1

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

1.4.3.2

V.44 Data Compression.............................................................................................................. 1-7

1.4.3.3

Country Support......................................................................................................................... 1-7

1.4.3.4

TAM Mode.................................................................................................................................. 1-7

1.4.3.5

Speakerphone Mode (S Models)................................................................................................ 1-8

1.4.4

Reference Designs.......................................................................................................................................... 1-9

Hardware Description ..................................................................................................................................................... 1-9

1.5.1

CX06833 Modem Device ................................................................................................................................ 1-9

1.5.2

CX20442 Voice Codec .................................................................................................................................... 1-9

AT Commands .............................................................................................................................................................. 1-10

Serial DTE Interface Operation........................................................................................................................................ 2-1

2.1.1

Automatic Speed/Format Sensing .................................................................................................................. 2-1

Parallel Host Bus Interface Operation............................................................................................................................. 2-2

Establishing Data Modem Connections .......................................................................................................................... 2-2

2.3.1

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

2.3.2

Telephone Number Directory ......................................................................................................................... 2-2

2.3.3

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

2.3.4

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

2.3.5

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

2.3.6

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

2.3.7

Billing Protection ............................................................................................................................................ 2-3

2.3.8

Connection Speeds......................................................................................................................................... 2-3

2.3.9

Automode ....................................................................................................................................................... 2-3

1.5

1.6

2.1

2.2

2.3

2. Technical Specifications .......................................................................................................................2-1

102228A

Conexant

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