• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
  • Skip to footer
  • Subscribe
  • Advertise

Sensor Tips

Sensor Product News, Tips, and learning resources for the Design Engineering Professional.

  • Motion Sensing
  • Vision systems
    • Smart cameras
    • Vision software
    • Lighting
    • Optics
  • Pressure
  • Speed
  • Temperature
  • Suppliers
  • Video
    • EE Videos
    • Teardown Videos
  • EE Learning Center
    • Design Guides
    • Tech Toolboxes

How can you secure a sensing node?

July 30, 2018 By Randy Frank

At Sensors Expo 2018 in San Jose, CA, Martin Squibbs, Product Marketing Manager for Microchip Technology discusses the company’s newest SAM L11 microcontroller (MCU), the first on the market to have the Arm Cortex-M23 core with TrustZone. Leveraging TrustZone, the three differentiating features of the 32-bit MCU are high security, parallel capture (through a two-stage pipeline) and extremely low power consumption.

ARM TrustZone capabilities include secure boot, secure boot loader, active shield and the ability to protect keys from cyber keylogging attacks.

The Water Tolerant Touch Demo in the exhibit demonstrates parallel capture of the chip which makes it much faster. The touch control has a shield that provides water tolerance as well as noise immunity.

The third aspect of the new MCU is low power. The ultra-low power 32-bit MCU family consumes less than 25 µA/MHz in the active mode, under 600 nA in sleep mode with full RAM retention and has a fast wake-up time of 1.5 µS. Tested to the EEMBC testbench, this is 50% less power than the nearest competitor.

A development kit is available for SAML11 and SAM L10, a version without the integrated hardware security, to test various features and especially the TrustZone. Working with partner Testonics, Microchip will offer tools to support the development of the security environment.

An example of how the security feature work in the Temp Sensor App, portions can be sandboxed within the device and they cannot be tamper with. Limited application programming interfaces (APIs) have access to the secure application (the temperature control). Non-secure applications can be built on top of the protected control in the same chip. If a non-secure application tries to do anything with the secure application, its access to the trusted environment is prevented.

Filed Under: Featured, Frequently Asked Question (FAQ), Temperature Tagged With: arm, EEMBC, Embedded Microprocessor Benchmark Consortium, Microchip Technology, Testonics

Primary Sidebar

Featured Contributions

Integrating MEMS technology into next-gen vehicle safety features

Fire prevention through the Internet

Beyond the drivetrain: sensor innovation in automotive

Sensors in American football can help the game

Select and integrate sensors into IoT devices

More Featured Contributions

EE TECH TOOLBOX

“ee
Tech Toolbox: 5G Technology
This Tech Toolbox covers the basics of 5G technology plus a story about how engineers designed and built a prototype DSL router mostly from old cellphone parts. Download this first 5G/wired/wireless communications Tech Toolbox to learn more!

EE LEARNING CENTER

EE Learning Center
“sensor
EXPAND YOUR KNOWLEDGE AND STAY CONNECTED
Get the latest info on technologies, tools and strategies for EE professionals.

RSS Current EDABoard.com discussions

  • Can anyone provide a guide or tutorial for Candece simulation?
  • Problem with ENVLP ACPR calculations in Cadence Virtuoso (IC 6.1.7, Spectre, ADEXL environment)
  • Testing 5kW Grid Tied inverter over 200-253VAC
  • Inconsistent Charge Termination Voltage with battery charger
  • 21V keeps getting shorted to my UART line.

RSS Current Electro-Tech-Online.com Discussions

  • using a RTC in SF basic
  • What is correct names for GOOD user friendly circuit drawing program?
  • Curved lines in PCB design
  • Is AI making embedded software developers more productive?
  • Why can't I breadboard this oscillator?

EE ENGINEERING TRAINING DAYS

engineering
“bills

RSS Featured White Papers

  • 4D Imaging Radar: Sensor Supremacy For Sustained L2+ Vehicle Enablement
  • Amphenol RF solutions enable the RF & video signal chains in industrial robots
  • Implementing Position Sensors for Hazardous Areas & Safety

DesignFast

Component Selection Made Simple.

Try it Today
design fast globle

Footer

EE WORLD ONLINE NETWORK

  • 5G Technology World
  • EE World Online
  • Engineers Garage
  • Analog IC Tips
  • Battery Power Tips
  • Connector Tips
  • DesignFast
  • EDA Board Forums
  • Electro Tech Online Forums
  • EV Engineering
  • Microcontroller Tips
  • Power Electronic Tips
  • Test and Measurement Tips

SENSOR TIPS

  • Subscribe to our newsletter
  • Advertise with us
  • Contact us
  • About us

Copyright © 2025 · WTWH Media LLC and its licensors. All rights reserved.
The material on this site may not be reproduced, distributed, transmitted, cached or otherwise used, except with the prior written permission of WTWH Media.

Privacy Policy