AndesCore™ N25F is a 32-bit CPU IP core based on AndeStar™ V5 architecture which incorporated RISC-V technology, it is capable of delivering high per-MHz performance and operating at high frequencies, at the same time it is small in gate count. N25F also supports single- and double-precision floating point and bit-manipulation instructions. N25F comes with options, including branch prediction for efficient branch execution, Instruction and Data caches, Local Memories for low-latency accesses, ECC for L1 memory soft error protection, and Andes Custom Extension™ (ACE) to add proprietary instructions to accelerate performance/power consumption critical spots.
N25F's 5-stage pipeline is optimized for high operating frequency and high performance. Features also includes PLIC and vectored interrupts for serving various types of system events, AXI 64-bit or AHB 64/32-bit bus, PowerBrake, QuickNap™ and WFI mode for low power and power management, and JTAG debug interface for development support.
RISC-V CPU IP With ISO 26262 Full Compliance
Overview
Key Features
- AndeStar™ V5 Instruction Set Architecture (ISA), compliant to RISC-V technology
- Floating point extensions
- Bit-manipulation extensions
- Andes extensions, architected for performance and functionality enhancements
- Separately licensable Andes Custom Extension™ (ACE) for customized acceleration
- 32-bit, 5-stage pipeline CPU architecture
- 16/32-bit mixable instruction format for compacting code density
- Branch prediction to speed up control code
- Return Address Stack (RAS) to speed up procedure returns
- Physical Memory Protection (PMP)
- Flexibly configurable Platform-Level Interrupt Controller (PLIC) for supporting wide range of system event scenarios
- Enhancement of vectored interrupt handling for real-time performance
- Advanced CoDense™ technology to reduce program code size
Block Diagram
Applications
- Networking and Communications
- Advanced Driver-Assistance Systems
- Video and Image Processing
- Storage and Media Streaming
Technical Specifications
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