C4FM modem functionality for two-way radios

2 April 2008 Telecoms, Datacoms, Wireless, IoT

CML Microcircuits has announced new product functionality for its FirmASIC component technology based CMX7031 and CMX7041 two-way radio processors.

The latest market driven release offers two-way radio manufacturers half-duplex C4FM modem functionality suitable for use in PMR/LMR radios. In conjunction with a suitable host microcontroller and RF circuitry, this provides a complete digital baseband processing and data solution. CML’s proprietary FirmASIC technology configures on-chip sub-systems via a Function Image; this is a data file that is uploaded during device initialisation, configuring the function and feature-set. Function Image FI-3.0 is the latest release, providing C4FM modem functionality. A Function Image can be loaded automatically from an optional external EEPROM or from a host microcontroller over the built-in C-BUS serial interface, facilitating in-the-field upgrades, useful for adding additional product functionality to existing products.

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