4.3. Pre-Configured Processor Cores
Alternatively, there could be a family of pre-configured cores based on the Xtensa ISA. Each of these pre-configured cores could be tailored for task sets commonly encountered in SOC design. In fact, there is such a family of pre-configured cores: Tensilica’s Diamond Standard series of processor cores. The Diamond Standard cores have each been configured and extended for specific applications including control processing, Linux operation, general-purpose digital-signal processing, and audio processing.
The Diamond Standard processor cores are easy, drop-in processors tailored to common SOC tasks. They also demonstrate the types of extensions made possible by the Xtensa configurable ISA, the XPG, and the TIE ...
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