基于ARM架构的安全总线桥设计与实现  

Design and implementation of a secure bus bridge based on ARM architecture

作　　者：刘梦影 王芬芬 冯海英 Liu Mengying;Wang Fenfen;Feng Haiying(China Key System&Integrated Circuit Co.,Ltd.,Wuxi 214072,China)

机构地区：[1]中科芯集成电路有限公司,江苏无锡214072

出　　处：《电子技术应用》2024年第11期47-53,共7页Application of Electronic Technique

摘　　要：为提高SoC(System-On-Chip)系统安全性能,设计了一种基于ARM(Advanced RISC Machine)架构的安全总线桥电路。该电路设计了一个桥接模块和一个访问控制功能模块。仿真表明,该电路能够在任意倍频的AHB(Advanced High-Performance Bus)和APB(Advanced Peripheral Bus)时钟频率下完成AHB传输协议向APB传输协议的转换,同时支持灵活配置主从设备的访问权限和保护模式,防止外设寄存器数据被非法访问和恶意篡改,提高了系统的安全性能和适用性。To improve the security performance of SoC systems,this paper presents a design of a secure bus bridge circuit based on the ARM architecture.The circuit consists of a bridge module and an access control function module.Simulation results indi‐cate that the circuit is capable of performing protocol conversion from AHB to APB under arbitrary multiples of AHB and APB clock frequencies.It also supports flexible configuration of access permissions and protection modes for master and slave de‐vices.This prevents unauthorized access and malicious tampering of peripheral register data,thereby improving the security per‐formance and applicability of the SoC system.

关 键 词：ARM AHB APB 安全 访问控制 

分 类 号：TN402[电子电信—微电子学与固体电子学]