The present invention relates to a module 50 for generating integrated decoding circuits for use, in particular, in turbo devices, to the method for defining the characteristics of and generating convolutional decoding circuits, and to the circuit that can be obtained with said module 50. The module 50 is parametric and, thanks to this feature, makes it possible to generate decoding circuits having different performance characteristics which are such that they can be used in turbo devices employing different decoding modes and different architectures. In addition, the module 50 makes it possible to generate decoding circuits whose distinguishing feature is that they can manage a plurality of generator polynomials selectively and can thus also be used in asymmetrical turbo devices.