The CMX7131 and CMX7141 are half-duplex processor IC platforms built on FirmASIC® technology that are suitable for use in multi-standard digital PMR (DPMR) and dual-mode (analogue/digital) systems.
FirmASIC® component technology allows on-chip sub-systems to be reconfigured by a Function Image™ (FI): this is a data file that is uploaded during device initialisation that defines the device’s function and feature set.
Dual mode and multi-mode digital PMR radios can now be developed based on a single radio platform conforming to a number of digital PMR systems/standards all with full analogue PMR backward compatibility.
The Ultimate FDMA Digital Radio Chipset
A number of the Function Images now support direct connection to CML’s CMX994 Direct Conversion Receiver. The combination of the CMX7131/7141 and CMX994 enables the highest integration, multi-standard FDMA digital/analogue PMR radio, to be realised. The CMX7131/7141 and CMX994 together address the market requirements for: Low power operation, small size, low cost, flexibility and high performance.
A. Our FirmASIC® based devices require a Function Image™ to configure their on-chip sub-systems.
This is a data file that is uploaded during device initialisation and defines the device’s function and feature set.
The Function Image™ can be loaded automatically from external serial EEPROM via a dedicated SPI bus or from a host µController over the built-in C-BUS serial interface.It is also possible with two specified memory devices to update the serial memory stored Function Image™ via the C-BUS and SPI interface.
CML supplies a dedicated Thick Stub Function Image™ to enable this capability. The linked flow diagram is an aide-memoir in that it makes it plain what is possible when choosing the most suitable method of storing a Function Image™ for your project.
Interfacing and implementing the AMBE-3000 Vocoder with the CMX7131/7141 devices for use in digital radio systems.
Two scripts (transmit and receive) to enable interfacing and implementing the DVSI AMBE-3000™ with the CMX7131/CMX7141.
Synthesiser set-up example. Target board is the PE0201.
Changes the PE0402 programming block to allow operation at 6.144MHz Note that some Function Images cannot operate at 6.144MHz
|PE0402||The PE0402 Platform Evaluation Kit is designed to assist in the evaluation and application development of the CMX704x/CMX714x range of FirmASIC products.||PE0402_Product_Preview|
|PE0201||The PE0201 Platform Evaluation Kit is designed to assist in the evaluation and application development of the CMX703x/CMX713x range of FirmASIC products.||PE0201_Product_Preview|
|DE6181||The DE6181 is designed to assist in the evaluation of this family of products, when loaded with a Function Image™ (FI) and the CMX618 IC.||DE6181_Product_Preview|
|DE9944||The DE9944 is a compact demonstration/evaluation platform for FDMA Analogue / Digital Radio designs based on the CMX7141 FDMA PMR Processor and incorporating the CMX618 RALCWI Vocoder, the CMX7262 TWELP Professional Radio Vocoder, and the CMX994 Direct Conversion Receiver.||DE9944_Product_Preview|
CMX7131/41 White Paper
Guides to operation and interfacing
How it works