Universal computing digital signal processor

Abstract

The invention discloses a universal computing digital signal processor which comprises a CPU core unit, a DSP core unit, a multi-layer interconnection structure, an in-chip share storage array, an off-chip memory interface, a high-speed input and output interface, a second high-speed input and output interface, an inter-chip direct connection interface and an inter-core synchronous device. The CPU core unit comprises a plurality of CPU cores. The DSP core unit comprises a plurality of DSP cores. The CPU cores and the DSP cores are respectively connected with the in-chip share storage array through the multi-layer interconnection structure. The CPU cores are connected with the first high-speed input and output interface. The DSP cores are connected with the second-speed input and output interface and the inter-chip direct connection interface. The application program of the universal computing digital signal processor is obtained in a mode that uniform compiling and linking are conducted on CPU end object codes and DSP end object codes obtained in a compiling mode through a uniform and parallel programming method. The universal computing digital signal processor can maintain the basic characteristics of an embedded type DSP and the advantages of high performance and low consumption, and can effectively support universal scientific calculation.

Description

technical field [0001] The invention relates to the field of microprocessor structure design, in particular to a general-purpose computing digital signal processor (General-Purpose Digital Signal Processor referred to as GPDSP) with a multi-core structure suitable for 64-bit general scientific computing and having the basic features of an embedded digital signal processor . Background technique [0002] Due to its advantages of low power consumption and strong real-time performance, Digital Signal Processor (DSP) as a typical embedded microprocessor has been widely used in various embedded systems. Although the current DSP architecture has many characteristics that are homogeneous with the central processing unit (CPU) in terms of calculation and control, it is generally believed that the following are the basic characteristics that distinguish DSP from CPUs: 1) Strong computing power, focusing on real-time computing rather than CPU Focus on control and transaction processi...

AI Technical Summary

Problems solved by technology

Because the general DSP has the following problems when it is used for general scientific computing: (1), the bit width is small, so that the calculation accuracy and addressing space are insufficient

General scientific computing applications require at least 64-bit precision; (2), lack of software and hardware support such as task management, file control, process scheduling, and interrupt management, or the lack of an operating system (OS) hardware environment, for general, multi-channel computing task management Inconvenient; (3), lack of unified high-level language programming mode support, support for multi-core, vector, data parallel, etc. basically rely on assembler programming, which is not convenient for general programming; (4), does not support the program debugging mode of the local host , only rely on other machine cross-debugging emulation

These problems seriously limit the application of DSP in the field of general scientific computing

Images