Computing device extension system for system on chip (SOC)

Abstract

The invention provides a computing device extension system for an SOC. The computing device extension system comprises the SOC, a programmable device which is connected with the SOC through a first bus and an off-chip memory which is connected with the programmable device through a second bus, wherein the SOC comprises a shared controller which arbitrates access requests of the SOC and the programmable device for the off-chip memory, so that data sharing between the SOC and the programmable device is achieved through the off-chip memory. According to the computing device extension system, both the generality and the economical efficiency of products are considered, and the mutability of system functional requirements can be met to the maximum extent.

Description

technical field [0001] The invention relates to a general SOC computing capability expansion technology, in particular to an SOC computing device expansion system using a memory interface. Background technique [0002] With the development of on-chip embedded computer technology, the system-on-chip (SOC, System on Chip) is becoming more and more integrated, its performance and functions are becoming more and more powerful, and its complexity is also increasing. [0003] However, the versatility and economy of the SOC in the prior art are a pair of irreconcilable contradictions. Versatility is ensured by pre-adding various possible interface circuits and various possible calculation processing logics in the SOC design, but this often makes the design of the SOC extremely complicated, so that for a simple application, it is often necessary to select functional performance far away. SOC chips that exceed the required degree. The economy is usually realized by customizing the ...

AI Technical Summary

Problems solved by technology

[0003] However, the versatility and economy of SOC in the prior art are a pair of irreconcilable contradictions

Versatility is ensured by pre-adding various possible interface circuits and various calculation processing logics in the SOC design, but this often makes the design of the SOC extremely complicated, so that for a simple application, it is often necessary to select a functional performance far away. SOC chip more than required

The economy is usually achieved by customizing the SOC for a specific application, but such a custom method has its limitations

Because the premise of customization is that the functional requirements and performance requirements of the application have been fixed and will not change. In addition, the demand for the application needs to be large enough to balance the cost increase caused by customization

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