CMX635 Datasheet | Consumer Microcircuits Limited

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 - 100m W Speaker-Phone Output - 2 Independent Analogue 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 & Analogue Answer-Phones - Data Adaptors - Active and Passive Terminal Adaptors - Alarm Systems - Point-Of-Sale Terminals - ‘Group 4’ Fax Equipment - Video Phones IOM is a trademark of Siemens AG. Brief Description The CMX635 is an integrated Subscriber Processor designed for low chip-count ISDN voice/data terminals and POTS terminal adaptors. 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 TM IOM-2 /GCI interface is provided to enable operation with other IOM pliant devices. The µController interface is patible 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 48pin TQFP package and has progressive powersave modes to aid low power operation. © 2001 Consumer Microcircuits Limited .. ISDN...