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Documentation

This directory contains reference documents related to Nuclei RISC-V processors, ISA specifications, and debugging.

Nuclei-specific Documents

• Nuclei_E603_Databook.pdf
  Datasheet for the Nuclei E603 core, including architecture overview, features, and interface description.

• Nuclei_E603_ISA_Spec.pdf
  Instruction Set Architecture (ISA) specification for the Nuclei E603 core.

• Nuclei_E603_Integration_Guide.pdf
  Integration guide for the Nuclei E603 core, covering SoC integration, interfaces, and design considerations.

• Nuclei_NICE_Extension.pdf
  Details the Nuclei Instruction Co-unit Extension (NICE) feature for adding custom instructions to enhance performance.

RISC-V Specifications

• riscv-spec-20191213.pdf
  The RISC-V Instruction Set Manual Volume I: Unprivileged ISA (December 13, 2019 version) defining the base integer ISA and extensions.

• riscv-privileged-20190608.pdf
  The RISC-V Instruction Set Manual Volume II: Privileged Architecture (June 8, 2019 version)

• riscv-debug-release.pdf
  RISC-V external debug specification, version 0.13.2, defining the debug architecture and interface.