An ARMv7-M usage model to avoid critical regions is: Configure both SVCall and PendSV with the same, lowest exception priority. Use SVCall for supervisor calls from threads. Use PendSV to handle context-critical work offloaded from the exception handlers, including work...
Version: D (Superseded) Rate this page: The special-purpose mask registers An ARMv7-M processor implements the following special-purpose registers for exception priority boosting: PRIMASK The exception mask register, a 1-bit register. Setting PRIMASK to 1 raises the execution priority ...
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Armv7-M 架构参考手册(armv7m_arm)
Copyright©2006-2008,2010ARMLimited.Allrightsreserved.ARMDDI0403D(ID021310)ARM®v7-MArchitectureReferenceManualiiCopyright©2006-2008,2010ARMLimited.Allrightsreserved.ARMDDI0403DNon-Confidential,UnrestrictedAccessID021310ARMv7-MArchitectureReferenceManualCopyright©2006-2008,2010ARMLimited.Allrightsreserved....
ARM DDI 0403E.d Non-Confidential ID070218 Contents ARMv7-M Architecture Reference Manual Preface About this manual x Using this manual xi Conventions xiii Further reading xiv Feedback xv Part A Application Level Architecture Chapter A1 Introduction A1.1 About the ARMv7 architecture, and architecture...
ARMv7MArchitectureReferenceManual 系统标签: architecturemanualreferencearmerratamarkups Copyright©2006-2010ARMLimited.Allrightsreserved.ARMDDI0403C_errata_v3(ID021910)ARM®v7-MArchitectureReferenceManualiiCopyright©2006-2010ARMLimited.Allrightsreserved.ARMDDI0403C_errata_v3Non-Confidential,UnrestrictedAccess...
ARM® Architecture Reference Manual ARMv7-A and ARMv7-R edition 文章目录 0.ARM概念 1.ARM的基本设定 2.ARM处理器的工作模式 1.有哪些模式 2.设置这些模式的原因 3.ARM寄存器介绍 1.通用寄存器 2.SP/LR/PC特殊寄存器 3.CPSR/SPSR寄存器 4.常用汇编指令 ...
ARM Architecture Reference Manual ARMv7-A and ARMv7-R edition.pdf 特权等级(Privilege level) ARMv7架构支持安全扩展,如果使能了安全扩展,ARMv7-A架构分为安全模式(Secure State)和非安全模式(Non-secure State)两个世界。 在非安全模式下,存在三种运行特权 PL0,PL1和 PL2(Privilege level)。(这里仅仅讨论非...