Digital signal processor based on parallel data channel

Abstract

The invention provides a digital signal processor based on a parallel data channel. The parallel data channel sequentially comprises a parallel multiplication unit, a parallel operation unit set and a parallel accumulating unit, wherein the parallel multiplication unit comprises a plurality of parallel multiplying units and has the capabilities of carrying out multiplex real multiplication or complex multiplication as well as implementing bypass operation; the parallel operation unit set comprises a plurality of arithmetic logic units, and is formed by connecting multiple stages of arithmetic logic channels and a switching network composed by the plurality of arithmetic logic units in each layer, wherein each stage of arithmetic logic channel performs the parallel arithmetic logic operation through the plurality of parallel arithmetic logic units, and the operating result of the previous stage of arithmetic logic channel can be transmitted to the next stage of arithmetic logic channel through the switching network; each arithmetic logic unit is used for performing addition, subtraction, comparison, displacement, or absolute value operation; the bypass operation can be carried out to the layer; and the parallel accumulating unit is formed by a plurality of parallel accumulating units and is used for performing accumulating and post-processing. The digital signal processor based on the parallel data channel improves the processing performance and efficiency of the digital signal processor.

Description

technical field [0001] The invention relates to the technical field of digital signal processors, in particular to a digital signal processor based on parallel data channels. Background technique [0002] Programmable processors realize different computing functions through software programs and have a high degree of flexibility. An important component of a processor is the arithmetic logic unit (ALU), which performs arithmetic and logic operations. The ALU on a general-purpose processor supports simple arithmetic and logic operations. On a general-purpose processor, complex calculations are decomposed into multi-step ALU operations. Common digital signal processing algorithms can be executed by a general-purpose programmable processor, but it is not suitable for use in embedded systems powered by batteries or with low power consumption requirements. Because general-purpose processors cannot simultaneously meet the requirements of digital signal processing algorithms for ...

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Problems solved by technology

However, the traditional SIMD processor simply expands the ALU unit for data parallel processing so that it can process multiple input data at the same time. For special digital signal processing algorithms, the performance improvement after decomposing the more complex operations into simple SIMD operations is not enough. obvious

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