An Interface and Communication Technique between Circuit Blocks in System LSI

摘要

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.rnWe propose a new method to solve the problem, where the communication between 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 a scale of less than 5 K gates.rnAs 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.