Memory-contained processor

摘要

A processor containing a cache memory having its storage capacity enlarged while suppressing area increases is provided. The processor includes an SRAM (Static Random Access Memory) cache memory and a DRAM (Dynamic RAM) cache memory of a large storage capacity. The SRAM cache memory and the DRAM cache memory are coupled to the processor through a processor bus. The SRAM cache memory and the DRAM cache memory transfer data through an internal transfer bus provided separately from the processor bus and having a larger width.