S21

S2 Series

S21

The SiFive S21 Standard Core is a full-featured 64-bit embedded processor based on the S2 Series. The S21 has separate Instruction and Data Buses, along with 2 banks of Tightly Integrated Memory (TIMs). The S21 is an ideal choice for area constrained applications demanding a 64-bit processor.

S21的主要特征:

  • RISC-V ISA - RV64IMAC
     
  • 64-bit AXI Ports
     
  • Machine and User Mode with 4 Region Physical Memory Protection
     
  • 3-stage pipeline with Simultaneous Instruction and Data Access
     
  • 2 Banks of Tightly Integrated Memory
     
  • CLIC interrupt controller with 127 interrupts
     
  • Advanced debug with 4 hardware breakpoints/watchpoints
     
  • 1.6 DMIPS/MHz
     
  • 3.2 Coremarks/MHz

S2

Series Overview

S2系列

The S2 Series is a 64-bit microcontroller highly-optimized for area, efficient performance, and simplified integration into 64-bit SoCs. The S2 core has the same efficient 2‑stage or 3-stage pipeline as the E2 Series as well as a Core Local Interrupt Controller (CLIC) enabling extremely fast interrupt response. The S2 Series can be fully customized to meet your specific requirements.

S2系列亮点

主要特征

  • 64-bit CPU
  • Greater than 32-bit physical address
  • Optional Tightly Integrated Memory (TIM)
  • Configurability

 

应用领域

  • 64-bit Embedded Controller
  • Consumer
  • Industrial Automation
  • Management Core

所有标准核心

CoresAreaStandard CoresARM Comparison
E2 系列 E20 ,E21 ,E24

M0, M0+, M3, M4, M23, M33

E3 系列 E31 ,E31

R4, R5

E7 系列 E76 ,E76-MC

M7, R7, R8

S2 系列 S21

***

S5 系列 S51 ,S54

R4, R5

S7 系列 S76 ,S76-MC

M7, R7, R8

U5 系列 U54 ,U54-MC

A5, A7, A35, A53

U7 系列 U74 ,U74-MC

A55