Architectures and Processors blog

This blog will cover the basics of interrupt latency, and what users need to be aware of when selecting a microcontroller with low interrupt latency requirements.

IntroductionIn ARM® Cortex®-A class CPUs, the Memory Management Unit (MMU) and Operating System (OS) work together to protect address spaces. A process running in unprivileged mode has its own virtual…

“It’s interesting to think you have something in your hands that you don’t quite understand.” You could apply that sentiment to inventions throughout history. You could apply that…

Overview of stack size requirement estimations in Arm Cortex-M based applications.

[note] This is an English translation edition of my article which appeared on the Interface magazine issued by the CQ publishing. I'm sorry for my poor English.[1] Background of the strongest Cortex-M4…

We’d like to welcome all of you and describe few interesting issues we encounter during our work with ARMv8 and FreeBSD. In this cycle it is planned to talk a little about various bugs found in the kernel…

We demand more of our phones than ever. These demands have to be possible within the constraints of the mobile form factor and its power limits. Achieving these goals without a premium price tag is a challenge…

You may have assumed that Mobile World Congress is an event that is entirely dedicated to the smartphones and devices that have changed our lives over the past couple of decades.

Chinese Version中文版：世界移动通信大会的 6 大亮点 Mobile World Congress isn’t only about mobile phones, it’s all about the internet and the technologies that continue to enable the mobile revolution. It was my first…

Take one look at the outside world in 2016 and you will see that everything is becoming connected; our inanimate objects are growing smarter while our electronic devices are gaining ever more computing…

Today ARM announces the second member of our family of ultra high efficiency application processors, the Cortex-A32. In this blog I’ll provide highlights of Cortex-A32 while answering the question: Why…

Cellular connectivity has been driving a data rate race for the last decade, bringing mobile broadband connectivity to millions and bringing the smartphone into the centre of our digital lives.  Whilst…

How to use Arm Cycle Models to Understand the Cortex-R8.

Provides an overview of TrustZone technology - including the new topics of TrustZone for ARMv8-M (microcontrollers) and TrustZone CryptoCell Why Security Matters Security done well provides the foundations…

The mobile phone has seen explosive growth over the last two decades to become an essential part of our everyday lives.  Right from the outset, ARM has been at the heart of these devices enabling ever…

Contemporary mobile platform SoCs impose intense traffic management demands on the memory subsystem.

On Thursday 18th February we announced the latest real-time processor IP, the ARM® Cortex®-R8. Cortex-R8 is a quad-core high-performance real-time processor, building on the R profile ARMv7-R…

Embarrassing to say, but just like any other technical documentation, there are a few errors in my Arm Cortex-M books. In this document I summarize the errors I am aware of.

In order to keep my assembly-related documents easy to read and understand, I've written some macros for the GNU-assembler (also known as GAS).

The beginning of a year brings with it the potential of many new things; resolutions, good habits and of course the new gadgets that promise to change our lives at CES. Amidst the glitz of promises of…

The Arm architecture continues to evolve and Armv8.2-A is the second set of changes being introduced to the Armv8-A architecture profile.