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Selection circuit and method for source operand of internal memory

A technology for selecting circuits and memory sources, applied in memory systems, electrical digital data processing, instruments, etc., to achieve the effects of flexible memory operation, reduced power consumption, and improved parallelism

Inactive Publication Date: 2004-06-09
SHANGHAI MAGIMA DIGITAL INFORMATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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  • Selection circuit and method for source operand of internal memory
  • Selection circuit and method for source operand of internal memory
  • Selection circuit and method for source operand of internal memory

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Embodiment Construction

[0026] In this embodiment, the present invention is illustrated by taking a digital signal processor (DSP) with a pipeline structure as an example, but this DSP is only exemplary, and those skilled in the art can understand that the present invention is applicable to any digital signal processing system.

[0027] The memory source operand selection circuit in this embodiment is integrated in the DSP circuit. see image 3 , the memory source operand selection circuit includes two data storages 121 and 122 of X and Y, two data storages corresponding to the two data storages can directly fetch data signals X from the X and Y data storages 121 and 122 respectively. , Y data buses 111, 112, and intermediate storages 101, 102 (hereinafter respectively referred to as memory load registers for XP and memory load registers for YP).

[0028] The two data storages in this embodiment are respectively defined as X data storage 121 and Y data storage 122, those skilled in the art will kn...

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Abstract

This invention discloses a memory source operating selection circuit and its control method used in digital signal process, in which, at least one memory stores usable data, a data bus is connected to a memory to pick up data from it, one intermediate storage is connected to a data bus and corresponding to each storage. When the data bus loads data, it can loads data signals from the storage to the intermediate storage corresponding to it, and the executing part responsable for data process either picks up data signals directly from a data bus or from intermediate storage.

Description

technical field [0001] The invention relates to a digital signal processing system, in particular to a selection circuit and a selection method of a memory source operand in the digital signal processing system. Background technique [0002] The information age also puts forward higher and higher requirements for signal processing. It is often difficult for general-purpose processors to complete high-speed and complicated signal processing, so digital signal processors (DSP) have emerged as the times require. Digital signal processor mainly refers to the operation and processing of digital real-time signals. It has the function of digital signal processing, and can perform operations such as filtering, mixing and comparing of signals. The data that needs to be processed by the digital signal processor often has a high reuse rate. If it is always accessed from a far memory, it will inevitably affect the speed performance of the digital signal proce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/38G06F12/00G06F13/14
Inventor 周振亚
Owner SHANGHAI MAGIMA DIGITAL INFORMATION