Having Applied in Customers' Mass Production Proects  
Collaborated with GigaDevice  
on the first RISC-V general  
MCU GDvf103, including  
processor IP core, tool-chain  
and technical support.  
Collaborated with VeriSilicon to  
adopt N200 series cores in their  
SoC proects.  
150+  
Over 150 customers  
(licensed and evaluated)  
Customized ultra-low power  
RISC-V cores to replace  
previous ARM Cortex-M  
cores in the advanced SoCs.  
Customized ultra-low power  
RISC-V cores for WITINMEM’s  
computing-in-memory AI chips.  
Cooperated with Andes on  
N22 implementation. Nuclei  
completed the hardware  
design implementation and  
partial of function verification.  
Customer Case: GigaDevice GD32V Gerneral-Purpose RISC-V MCU  
GD32VF103, a 32-bit general-purpose microcontroller, is based on the RISC-V core with an impressive balance of  
processing power, reduced power consumption and peripheral set. The insided RISC-V core, named Bumblebee, is  
developed by Nuclei.  
Key features:  
Bumblebee  
Core  
DEBUG  
ECLIC  
JTAG  
RISC-V RV32IMAC ISA  
Machine mode and user mode  
PMP (physical memory protection)  
32-bit AHB-Lite System Bus Interface  
32-bit APB Private Peripheral Bus Interface  
32-bit ILM and DLM Interfaces  
Standard 4-wire JTAG  
WFI/WFE  
TIMER  
Bumblebee uCore  
Running on the same 108MHz frequency  
Performance 15% higher*  
Dynamic current (mA) 50% less*  
Stand-by Current (uA) 25% less*  
ILM  
MUL/DIV  
AHB-Lite  
PMP  
APB  
4 Hardware Breakpoints  
Enhanced I/Os and peripherals  
Maximum efficiency  
Complete program libraries  
Full development toolkit  
DLM  
WFI and WFE  
ECLIC (enhanced core level interrupt controller) with  
16 interrupt levels & 16 priorities  
*
Comparisons with GD32F103 based on ARM Cortex-M3)  
Customer Case: Amlogic New 12nm Smart TV SoC  
Amlogic is a global fabless system-on-a-chip (SoC) leader that provides open platform solutions for multimedia consumer  
devices including OTT/IP STBs, Smart TVs and Smart Home products. We customized a Nuclei N205 with various secure  
features in their advanced 4K Smart TV SoC. The mass production has been successful using TSMC 12nm process node. Also  
there have more on-going other proects.  
存储接口  
系统接口  
CPU  
CPU  
CPU  
视频  
输入  
单元  
视频  
输出  
单元  
GPU  
CPU  
TrustZone Security  
2
.5D  
安全CPU  
声音  
输入  
单元  
声音  
输出  
单元  
DSP  
AVE  
图形处理  
(RISC-V)  
加密引擎  
安全存储  
I/O接口  
Customer Case: Andes N22 Ultra-Low Power RISC-V Processor  
Andes Technology Corporation is a leading embedded microprocessor intellectual property supplier based in Taiwan.  
Nuclei co-worked with Andes on N22, their ultra compact 32-bit RISC CPU core in 2018 when Nuclei was ust founded.  
Nuclei completed the hardware design implementation and partial of function verification. It was a win-win  
collaboration for both Andes and Nuclei.  
AndeStar™ V5/V5e, compliant to RISC-V technology  
Support RV32 IMAC/EMAC  
DEBUG  
ECLIC  
JTAG  
N22  
32-bit, 2-stage pipeline  
WFI/WFE  
TIMER  
3.93CoreMark/MHz  
Gate count 15K (minimum configuration)  
700MHzworst-case, TSMC 28nm HPC+)  
Dynamic power 2.0 uW/MHz TSMC 28nm HPC+);  
Configurable branch prediction to speed up control code  
Configurable multiplier/divider,  
N22 uCore  
Stack  
Proection  
iCache  
DLM  
PMP  
Instruction and data local memory  
ILM  
MUL/DIV  
Fast-IO  
Core-Local Interrupt Controller (CLIC) with selective vectoring and priority preemption  
Flexibly configurable Platform-Level Interrupt Controller (PLIC)  
Support 4-wire and 2-wire JTAG  
AHB-Lite  
APB