CMX635 查看數據表（PDF） - MX-COM Inc

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CMX635

ISDN Subscriber Processor

MX-COM Inc  

COMMUNICATION SEMICONDUCTORS

DATA BULLETIN

CMX635

ISDN Subscriber Processor

ADVANCE INFORMATION

Features

• S/T Interface to ITU-T I.430 (TE & NT1)

• 2B + 1D-channel HDLC Controllers

• IOM™-2 / GCI Interface

• Selectable A-Law/µ-Law PCM Codec

• 100mW Speaker-Phone Output

• 2 Independent Analog Inputs

• Pre-Programmed Tone Generators

• V.23/Bell 202 FSK Generator

• Ringing Signal and SPM Generators

• DTMF Encoder/Decoder

Applications

• ISDN Terminal Equipment

• ISDN Intelligent NT’s

• ISDN Phones and Feature Phones

• Digital & Analog Answer-Phones

• Data Adapters

• Active and Passive Terminal Adapters

• Alarm Systems

• Point-Of-Sale Terminals

• ‘Group 4’ Fax Equipment

• Video Phones

The CMX635 is an integrated Subscriber Processor designed for low chip-count ISDN voice/data terminals

and POTS terminal adapters. Its functions facilitate operation in an ISDN feature phone with speakerphone

capability or in a POTS terminal adapter with Subscriber Pulse Metering (SPM), DTMF encoder/decoder,

Caller Line ID (CLID) and Caller ID on Call Waiting (CIDCW) capabilities. It also implements many functions

needed in an intelligent NT or NT1Plus system.

The CMX635 incorporates a 4-wire ST interface conforming to ITU-T I.430 and ETS 300 012-1 specifications.

HDLC Controllers and associated FIFOs are provided for B1, B2 and D-channels, which can be configured to

automatically process the bit stuffing, flag generation/recognition, address matching and CRC

generation/checking required to support the ITU Q.921 protocol. An IOM-2TM /GCI interface is provided to

enable operation with other IOM compliant devices.

The µController interface is compatible with multiplexed and non-multiplexed address/data busses and

generic Motorola and Intel style control. The CMX635 will automatically detect which style of interface is being

used and configure itself accordingly. The device is available in a 48-pin TQFP package and has progressive

powersave modes to aid low power operation.

IOM is a trademark of Siemens AG.

2001 MX-COM, Inc.

www.mxcom.com Tel: 800 638 5577 336 744 5050 Fax: 336 744 5054

Doc. # 204800225.002

4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA All trademarks and service marks are held by their respective companies.

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