RISC-V CPU IP Solution

900
Series 32-Bit & 64-Bit High Performance Processor
900 Series processors include four different classes: N900 (32 bit), U900 (32 bit + MMU), NX900 (64 bit) and UX900 (64 bit + MMU). With MMU, UX900 supports heavyload operating systems such as Linux. 900 Series can be applied to edge computing, data center, networking, etc.
900 Core Complex
Debug
900 Core
VPU
MMU
NMI
ECLIC
Timer
WFI/WFE
NICE
FPU
DSP
MUL/DIV
900 uCore
ICache
DCache
TEE
PMP
ILM
DLM
AHB-Lite
AXI
  • Real-time Feature
  • RV32
    IMACFDPBVK/Zcxlcz
    RV64
    IMACFDPBVK/Zc
  • 9 Stage Pipeline
    Dual-issue
  • I/D Cache
  • Machine, User,
    Supervisor-Mode
  • Security(PMP, TEE)
  • NICE Extension
  • AXI system bus
  • RISC-V Standard
    Debug
  • JTAG & 2-wire JTAG
  • Low Latency Interrupt
  • Full Dev Kit & SDK
900-SMP(multi-core) is the configurable version of 900 Series support symmetric multi-processor (SMP) configuration.
Cluster Interrupt Module ECLIC/ PLIC
Cluster Debug Module JTAG/ cJTAG
core 0
DSP/FPU/VPU
ICache w/ECC
DCache w/ECC
Core
Machine/Supervisor/User Mode
MMU
PMP
NICE IF
ILM w/ECC
DLM w/ECC
core 1
DSP/FPU/VPU
ICache w/ECC
DCache w/ECC
Core
Machine/Supervisor/User Mode
MMU
PMP
NICE IF
ILM w/ECC
DLM w/ECC
core 2
DSP/FPU/VPU
ICache w/ECC
DCache w/ECC
Core
Machine/Supervisor/User Mode
MMU
PMP
NICE IF
ILM w/ECC
DLM w/ECC
core n
DSP/FPU/VPU
ICache w/ECC
DCache w/ECC
Core
Machine/Supervisor/User Mode
MMU
PMP
NICE IF
ILM w/ECC
DLM w/ECC
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Slave Port
Snoop Filte
Snoop Control Unit
IOCP
...
IOCP
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Cluster Cache
128KB-4MB
|
Configurable CLM
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Cluster Memory Ports
Cluster Peripheral Ports
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900 Series Single Core Features
  • RISC-V RV32 IMACFDPBVK/Zcxlcz and RV64 IMACFDPBVK/Zc ISA supported
  • Dual Issue, in-order 9 stage Harvard Pipeline
  • Configurable SIMD DSP Extension
  • Full Vector Extension with configurable VLEN & DLEN
  • Configurable ILM (Instruction Local Memory) with ECC
  • Configurable ILM (Instruction Local Memory) with ECC
  • Configurable DLM (Data Local Memory) with ECC
  • Full standard debug function with JTAG and cJTAG
  • Full standard RISC-V toolchain with Linux\Windows IDE supported
900 series SMP Multi Core Features
  • Up to 16 SMP cores in one Cluster
  • SoC Connectivity
  • Support Hardware Data Prefetching mechanism
  • Cluster Cache
Common Configurations and Applications of 900 Series
N900 Core Machine/Supervisor/
User Mode
ILM
DLM
DSP/FPU
  • 32b architecture, 9-stage pipeline
  • Dual-issue configurable
  • RV32 IMACFDPBVK/Zcxlcz
  • On chip instruction and data local memory
  • SMP up to 16 cores
MCU
AIoT
Automotive Electronics
U900 Core Machine/Supervisor/
User Mode
ICache w/ECC
DCache w/ECC
FPU/VPU
MMU
  • 32b architecture, 9-stage pipeline
  • Dual-issue configurable
  • RV32 IMACFDPBVK/Zcxlcz
  • 16-64KB instruction and data cache
  • Support MMU, able to run Linux
  • SMP up to 16 cores
32b Linux
Security
NX900 Core Machine/Supervisor/
User Mode
ILM
DLM
ICache w/ECC
DCache w/ECC
DSP/FPU/VPU
  • 64b architecture, 9-stage pipeline
  • Dual-issue configurable
  • RV64 IMACFDPBVK/Zc
  • On chip instruction and data local memory
  • 16-64KB instruction and data cache
  • SMP up to 16 cores
AI
AR/VR
Storage
UX900 Core Machine/Supervisor/
User Mode
UX900 Core Machine/Supervisor/
User Mode
UX900 Core Machine/Supervisor/
User Mode
ILM
DLM
ICache w/ECC
DCache w/ECC
DSP/FPU/VPU
Cluster Cache
MMU
  • 64b architecture, dual-issue 9-stage pipeline
  • RV64 IMACFDPBVK/Zc
  • On chip instruction and data local memory
  • 16-64KB instruction and data cache
  • Support MMU, able to run Linux
  • SMP up to 16 cores
  • Cluster Cache configurable, support cache coherence
64b Linux
Application Processor
ADAS+robotics
900 Series Performance and Configuration Options
Nuclei CPU IP N900 U900 NX900 UX900
Dhrystone
(DMIPS/MHz)
2.84/6.05(Legal/Best Effort) 3.09/7.7(Legal/Best Effort)
CoreMark
(CoreMarks/MHz)
5.5
Pipeline Stages 9
Issue-Width Dual-Issue Dual-Issue Dual-Issue Dual-Issue
User Mode & PMP(MPU) Configurable Configurable Configurable Configurable
Hardware Multiplier and Divider Configurable Configurable Configurable Configurable
Half-Precision/Single-Precision/Double-Precision FPU Configurable Configurable Configurable Configurable
Instruction Cache Configurable Configurable Configurable Configurable
Data Cache Configurable Configurable Configurable Configurable
Digital Signal Processing (DSP) Configurable Configurable Configurable Configurable
NICE Configurable Configurable Configurable Configurable
ILM Configurable Configurable Configurable Configurable
DLM Configurable Configurable Configurable Configurable
TEE Configurable Configurable Configurable Configurable
Vector Extension Configurable Configurable Configurable Configurable
Cluster Cache Configurable Configurable Configurable Configurable
MMU No Configurable No Configurable
Multi-Processors Configurable Configurable Configurable Configurable
Partners(排名不分先后)

RISC-V Foundation

SICA

China RISC-V Industry Alliance

China RISC-V Alliance

SZICC

HBSIA

CBSIA

武汉光电工业技术研究院

Amlogic

VeriSilicon

LAUTERBACH

TencentOS Tiny

OpenHarmony

PlatformIO

exide

CALTERAH

BinarySemi

SILERGY

X-EPIC

MachineWare

JINGWEI HIRAIN

SIMANGO

SEGGER

TrustKernel

XIAOMI

SIEMENS EDA

Motorcomm

CHIPWAYS

SWID

taolink-tech

GeoforceChip

ChipIntelli

Witmem

Fisilink

TIH Microelectronics

XinSheng Tech

GigaDevice

ASR

AnLogic

TusStar

Mocro & Nano Institute

RT-Thread

OPEN AI LAB

IAR

HUST

SJTU

WHU

HBUT

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