Embedded microcontroller has integrated modem

3 July 2002 Telecoms, Datacoms, Wireless, IoT

CML Microcircuits - a company that designs and manufactures ultra low power ICs for global communications - is launching what it believes to be the first embedded microcontroller with integrated V.22bis modem for use in embedded systems.

The CMX850 is an 80C51 microcontroller enhanced with 8K of RAM, an integral modem capable of V.22bis, V.22, V.23, V.21 (and Bell) and up to 35 GPIO to form a powerful communications processor. It is capable of directly accessing 4 MB of external memory through 'page-mode addressing'.

Other main features include a 16x8 keyboard encoder, an interface for an external LCD controller, CAS tone detection and generation and advanced power management. Dual clock operation, a Watch Dog Timer, realtime clock, two input ADCs and two low-power PWM outputs are additional features included in the highly compact CMX850.

Some of the many applications envisaged for the CMX850 are SMS and ADSI terminals, telemetry and meter reading systems, security systems, feature phones, least cost routers, EPOS terminals and e-mail and Internet appliances.

Avnet Kopp

011 809 6100

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