Synopsys ARC-V™ RMX-500 Processors are based on the RISC-V instruction set architecture (ISA) and optimized for use in embedded applications where power & performance efficiency are key concerns. The DSP enhanced implementation (RMX-500D) adds DSP capability for applications such as IoT wearable devices where the combination of low power and signal processing are required to enable device performance and extend battery life.
The processors feature an efficient 5-stage Harvard architecture pipeline that provides excellent throughput for embedded applications.
The ARC-V RMX-500 features up to 64KB of Level 1 (L1) instruction & data cache and up to 2MB each of closely coupled instruction and data memories (CCM), maintain high code density and offer excellent performance within a very small footprint.
The DSP-enhanced RMX-500D cores include an optimized DSP implementation that features support for fixed-point DSP datatypes and vector operations.
To enable easy DSP software development, the ARC MetaWare Development Toolkit features a rich DSP software library and the included C/C++ Compiler supports commonly used DSP datatypes for easy algorithm programming. To maximize PPA of ARC-V RMX Processor-based designs, a Fusion QuickStart Implementation Kit (QIK) that includes tool scripts, a baseline floorplan, design constraints and documentation, is available.

Synopsys ARC-V RMX-500 Block Diagram
Synopsys ARC-V RMX-500 Series Datasheet
• RISC-V + DSP 32-bit processors for low-power embedded applications
• Base RV321 ISA + optional extension
• 2x 32-bit MAC DSP extensions (RMX-500D) for fixed point and vector operations
• RVV 1.0 support with VLEN≤128b, DLEN=64b
• Half, single and double precision floating point
• High degree of configurability
• Support for up to 64KB of L1 instruction and data caches
• Support for up to 2 MB of closely coupled memories and direct mapping of peripherals
• Native Arm AMBA® AHB5™ and AXI5 interfaces
• RISC-V AIA compliant interrupt handling
• N-Trace real-time trace debugging
• Easy programming support with Synopsys Metaware C/C++ Compiler
• Feature-rich DSP software library for easy algorithm programming (RMX-500D)
• Broad third-party and open-source software development tools support
• Full compatibility with existing RISC-V code base