How to improve power and area in RISC-V designs.
When System-on-Chip (SoC) developers include processors in their designs, they face choices in solving their computational challenges. Complex SoCs will usually have a variety of processor cores responsible for varied functions such as running the main application programs, communications, signal processing, security, and managing storage. Traditionally, such cores have been in distinct categories such as MCUs, DSPs, GPUs and application processors. Additionally, some unique architectures and instruction sets were developed for very specialized applications. However, a downside of unique instruction sets is the lack of a software ecosystem.
Today, the distinctions between classic core categories are blurring. This is because if a core is designed the right way, more than one usage can be covered by that processor. Furthermore, by creating a processor that is tuned to the needs of the SoC, the silicon efficiency in terms of area and power can be improved.
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