Whitepaper - ARMv8-M Architecture Technical Overview

The next generation of ARM Cortex-M processors will be powered by a new architecture version called ARMv8-M architecture. This document provides a technical overview of various enhancements in the new architecture, as well as an introduction to the security technology, called TrustZone for ARMv8-M. This document also introduces AMBA 5 AHB5 which enables security management at a system level, and covers various use cases of the new technology.

ARMv8-M Architecture

• ARMv8-M Architecture Technical Overview
• ARMv8-M Architecture Reference manual

Information on ARMv8-M and TrustZone

• The Next Steps in the Evolution of Embedded Processors for the Smart Connected Era
• ARMv8-M architecture: what’s new for developers - YouTube

Cortex-M23, Cortex-M33 and Cortex-M35P processors information

• Cortex-M | Introduction to ARM Cortex-M23 and Cortex-M33
• Cortex-M23 processor product page
• Cortex-M33 processor product page
• Cortex-M35P processor product page
• Cortex-M23 and Cortex-M33 - Security foundation for billions of devices
• Five key features of the ARM Cortex-M23 Processor
• Five key features of the ARM Cortex-M33 Processor
• Cortex-M35P: multi-layered security at the heart of your device
• Security principles for TrustZone for ARMv8-M (Webinar)

For details of Armv8.1-M processors (Cortex-M55, Cortex-M85), please visit:

      https://community.arm.com/arm-community-blogs/b/architectures-and-processors-blog/posts/cortex-m-resources

Resources for software developers

• Documents on developer.arm.com

Topics	Document
Introduction	Introduction to the ARMv8‑M Architecture
TrustZone	TrustZone technology for ARMv8‑M Architecture
ARM C Language Extension (ACLE)	ACLE Extensions for ARMv8‑M
Secure software	Secure software guidelines for ARMv8‑M based platforms
System Design	System Design for ARMv8-M
Exceptions and Interrupts	ARMv8‑M Exception Handling
Fault exception	Fault Handling and Detection
Power management and sleep modes	ARMv8-M processor power management secure state protection
Debug	ARMv8‑M Processor Debug
Memory model, MPU	Armv8-M Memory Model and MPU User Guide (doc, example codes)
MPU	Memory Protection Unit for ARMv8‑M based platforms
OS	RTOS design considerations for ARMv8‑M based platforms
ARMv8-M software development with ARM Compiler 6	Chapter 9 : Building Secure and Non-secure Images Using ARMv8-M Security Extensions
TrustZone software development in Keil MDK	Keil Application Note 291: Using TrustZone on ARMv8-M
Security extension details for compiler vendors	ARMv8-M Security Extension: Requirements on Development Tools (latest) (v1.1)
ARMv8-M software development	EW2017 - Software Development on ARMv8-M Architecture
mbed(TM)OS deployment on Armv8-M	EW2017 - High-End Security Features for Low-End Microcontrollers
RTOS design	EW2019 - How RTOS should work in a TrustZone for Armv8-M environment
TrustZone Secure software	Stack sealing and why it is needed in TrustZone for Armv8-M
TrustZone Secure software	Armv8-M processor Secure software Stack Sealing vulnerability

• A few intricacies of writing ARMv8-M Secure code
• Three ARM development tools to help you pioneer the IoT market
• Security Extensions and Privilege Levels

Resources for silicon designers

• Enhanced Security and Energy Efficiency of Microcontrollers and SoCs (AHB5 and Q channel introduction)
• System Design for ARMv8-M
• ARM AMBA 5 AHB Protocol Specification
• AMBA APB Protocol Specification
• AMBA Low Power Interface Specification
• AMBA 4 ATB Protocol Specification
• Corstone Foundation IP (Contains CoreLink SSE-200, CoreLink SIE-200 and more).
• Webinar on secure system design
• The six things you need to know about ARM CoreLink SSE-200 subsystem & ARM CoreLink SIE-200 system IP
• CoreLink Interconnect | ARM CoreLink SIE-200 – ARM Developer
• System Design | CoreLink SSE-200 subsystem – ARM Developer
• Cortex-M Prototyping System+ (FPGA board)