This chapter discusses the optional Memory Protection Unit (MPU) Cortex-M3 processor. Including the MPU in the microcontrollers provides memory protection features, which can make the developed products more robust. The MPU needs to be programmed and enabled before use. If the MPU...
DATA PROCESSING APPARATUS HAVING MEMORY PROTECTION UNIT A data processor () has a memory operable to store data values; a memory protection unit () operable to associate memory attributes with portions of said memory and to identify a plurality of memory regions corresponding to respective ad... ...
The present invention relates to a memory protection unit, a memory management unit and a microcontroller. 存储器保护单元(29l,29g),其特征在于以下特征:用于录入地址表的硬件寄存器,用于存储地址表的配置存储器(28),用于管理配置存储器(28)的预配置的硬件逻辑(29l,29g),用于对硬件寄存器进行加载的在配置...
Example 3.9 ArmMemory ProtectionUnit The Arm MPU allows privileged software, such as the operating system, to define up to 16 protected regions of memory. A protected region must be at least 32 bytes in size and no more than 4 GB; a region’s size must be a multiple of 32 bytes...
Ideally, you’d have a way to record (possibly to a file system) and display the cause of the fault to allow the developer(s) to fix the issue(s). Conclusion A Memory Protection Unit (MPU) is hardware that limits the access to memory and peripheral devices to only the code that need...
AN4838 Application note Introduction to memory protection unit management on STM32 MCUs Introduction This application note describes how to manage the memory protection unit (MPU) in the STM32 products. The MPU is an optional component for the memory protection. Including the MPU...
通过分析μC/OS-Ⅱ操作系统的安全性与稳定性,利用Cortex-M3内核上配置的MPU(Memory Protection Unit,存储器保护单元),把内存划分为特权级与用户级两个区.对移植到内核... 梅静静,王申良 - 《单片机与嵌入式系统应用》 被引量: 0发表: 2011年 基于硬件事务内存的vTPM安全保护方法 龚玉凤于钊严飞, 龚玉凤, ...
The Cortex®-M33 core also implements a full set of DSP (digital signal processing) instructions and a MPU (memory protection unit) that enhances the application security. The devices embed high-speed memories (up to 512-Kbyte flash memory and 274-Kbyte SRAM), one Octo-SPI flash memory int...
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Flash memory is sometimes called flash ROM or flash EEPROM when used as a replacement for older ROM types, but not in applications that take advantage of its ability to be modified quickly and frequently.By applying write protection, some types of reprogrammable ROMs may temporarily become read-...