While reading the documentation of ARMv6-M, I met for the first time the memory protection unit (which is not that complicated). According to the documentation, there is a register named the MPU_RASR (which stands for "MPU Region Attribute and Size Register") and clearly there is more than one of the register (one for each memory region if I understood correctly). My question is how can I know how many replicas of this registers exists?
(I reached this part of the documentation from the for loop in the ValidateAddress function description - bits(16) size_enable = MPU_RASR[r]<15:0>; ("r" is the iterator)
ARMv6-M memory protection unit
310 Views Asked by TJR At
1
There are 1 best solutions below
Related Questions in ARM
- Jiobook flashing
- How to flush denormal numbers to zero for apple silicon?
- How to exploit Unified Memory in OpenCL with CL_MEM_ALLOC_HOST_PTR flag?
- ARM Assembly code is not executing in Vitis IDE
- Which version of ARM does the M1 chip run on?
- Vector by Scalar Division with -ffast-math
- Why veneer code generated by gcc for cortex-m0 seems 8-byte aligned?
- Getting almost random time stamp counter on ARM
- Portenta H7 Baremetal Development and a Little Guidance on Embedded System Learning Roadmap
- STM32 RTC3 Mixed Mode: Writing TR resets SSR
- Implementing Quick Sort Algorithm in Visual2 with armv7
- How can I create an Inline assembly command with a multi-variable register offset?
- Inquiry: ARM Compatibility for Puppeteer
- Confusion with thumb instructions while compiling recipe for cortexm4 CPU
- Difficulty understanding virtual LPIs in GICv3
Related Questions in ARMV6
- How to exclude some instructions when compiling C code for arm v6 core using gcc?
- Interrupt deprivileging in ARM V6 micro controller
- How do I run a C++20 program on a Raspberry Pi 1B?
- Atags are non-sensical when booting custom RaspberryPi kernel
- in ARMv6 assembly one code is not working, but the modified version works. Why?
- runtime detection whether ARMv7 ELF binaries can be loaded on ARMv6 host
- pyelftool get symbol absolute address
- ATSAMD GCLK[x] for more Peripherals
- Clarity About TST Instruction - ARM Assembly
- ARMv6 calling convention with args in r0,r3 and return in r1
- Why are non-consecutive loads faster, even when the cache miss penalty is guaranteed to be zero?
- Cortex-M0+ not responding to PendSV
- Macro for optimization level (ARMCC V6)
- Building Python wheels in Docker for Raspberry Pi Zero on x86_64 machine
- Problems installing OpenMediaVault 5 on Raspberry Pi 1
Related Questions in ARM-MPU
- Is it possible to disable completely the MMU/MPU and read/write in completely arbitrary memory regions?
- Process stacks and interrupts on Cortex-M ARM cores
- What does the "Access" attribute mean in the bit [0] of the MEMATTRS signal from the CortexM4 IP and how do I assert the same
- NULL pointer protection with ARM Cortex-M MPU
- Hard fault RP2040 pico Zephyr
- TXM_MODULE_MANAGER_16_MPU for STMEZH7
- MPU subregions security for STM32H7
- MPU settings for ARM Cortex M7
- STM32H7 MPU shareable memory attribute and strongly ordered memory type
- How do I configure MPU registers in cortex m4?
- MPU not triggering faults in cortex M4
- Override default memory access behaviour in ARM Cortex-M3
- How to generate memory management fault in cortex m3 based microcontroller
- What should be Memory Protection Strategy for ARM Cortex CPU?
- Are exceptions stacked by the Cortex-M hardware in thread-mode or handler mode?
Trending Questions
- UIImageView Frame Doesn't Reflect Constraints
- Is it possible to use adb commands to click on a view by finding its ID?
- How to create a new web character symbol recognizable by html/javascript?
- Why isn't my CSS3 animation smooth in Google Chrome (but very smooth on other browsers)?
- Heap Gives Page Fault
- Connect ffmpeg to Visual Studio 2008
- Both Object- and ValueAnimator jumps when Duration is set above API LvL 24
- How to avoid default initialization of objects in std::vector?
- second argument of the command line arguments in a format other than char** argv or char* argv[]
- How to improve efficiency of algorithm which generates next lexicographic permutation?
- Navigating to the another actvity app getting crash in android
- How to read the particular message format in android and store in sqlite database?
- Resetting inventory status after order is cancelled
- Efficiently compute powers of X in SSE/AVX
- Insert into an external database using ajax and php : POST 500 (Internal Server Error)
Popular # Hahtags
Popular Questions
- How do I undo the most recent local commits in Git?
- How can I remove a specific item from an array in JavaScript?
- How do I delete a Git branch locally and remotely?
- Find all files containing a specific text (string) on Linux?
- How do I revert a Git repository to a previous commit?
- How do I create an HTML button that acts like a link?
- How do I check out a remote Git branch?
- How do I force "git pull" to overwrite local files?
- How do I list all files of a directory?
- How to check whether a string contains a substring in JavaScript?
- How do I redirect to another webpage?
- How can I iterate over rows in a Pandas DataFrame?
- How do I convert a String to an int in Java?
- Does Python have a string 'contains' substring method?
- How do I check if a string contains a specific word?
It should basically be equal to number of areas/spaces that you have partitioned into, and I guess there is a cap on this number in ARM processors