Processor memory access method and access apparatus thereof

Abstract

The invention discloses a processor internal storage access method and device, which comprises the steps: utilizing a switching mechanism to access different storage units of internal processor simultaneously through the disposal unit of processor in direct connection with the processor controller; keeping the disposal unit to access and calculate the data of internal storage, wherein the processor disposal unit connects the access controller directly through a switching circuit coupling the internal storage.

Description

technical field [0001] The present invention relates to a memory access method and its device, in particular to a processor internal memory access method and its device. Background technique [0002] General processors, especially embedded processors (Embedded Processors) that are often used in system chips, are often limited by the waiting time when accessing external memory (External Memory), that is, when the processor accesses external memory , the computing function of the processor will be idle. [0003] like figure 1 As shown, in order to improve the execution efficiency of the processor, the processor 8 may have a built-in cache memory 10 to speed up data access. Depend on figure 1 It can be seen that the processor 8 includes a processing unit 40, which saves a copy of frequently accessed data in the cache memory (Cache Memory) 10, so if the processing unit 40 needs to use these frequently accessed data, just Can access to the cache memory 10, and because the pro...

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Problems solved by technology

However, most of the data processed by the processor 8 still need to be written back to the external memory 20, and the processor 8 still needs to read new data from the external memory 20 for processing, so during the time of reading and writing the external memory 20, The processing unit 40 is in an idle state, thus causing a waste of computing resources

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