In large-scale System-LSI/SoC, how to standardize the communication method between diversified cores becomes one of the important problems, and various study reports have been done.
We propose a new method to solve the problem, where the communication between the cores is limited only to using message + parameters format. As the communication mechanism between IP cores and a common bus, we introduced the architecture, ACU, common to every core with various I/O functions, and it can be realized with less than 5k gates scale.
As the paradigm of Globally-Asynchronous Locally-Synchronous(GALS) system is attracting attention, this method is believed to be a good suggestion as a communication mechanism between local IP cores.
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