# Welcome to the RSL15 documentation topics!

# RSL15 Introduction

RSL15 is an ultra-low power secure Arm® Cortex®-M33 processor-based Bluetooth Low Energy 5.2 wireless MCU, designed for connected smart devices in industrial, medical and consumer applications. The comprehensive yet easy-to-use Software Development Kit (SDK) provides sample applications that demonstrate the hardware’s capabilities to enable security with the Integrated IoT Cybersecurity Platform, acquire sensor data in Smart Sense mode, configure the build-in power management, and utilize Bluetooth Low Energy features.

# Licensing Agreement

The RSL15 licensing agreement is specified in Software Use Agreement - use and accept (ONIPLAW 08142020).pdf, found in the root directory of the installed RSL15 CMSIS-Pack.

# How to use this documentation

This searchable resource contains all of our RSL15 manuals, with online-format advantages:

- Search across all the manuals or within a single manual, from one convenient search bar. Choose by clicking the search options icon:

  NOTE: Search results are not displayed in the order of the navigation index on the left side, but ranked by whether the term occurs in a higher-level heading, lower-level heading, or paragraph.

  IMPORTANT: For search syntax, click here.

- To find complex compound words, you might need quotation marks. Sometimes searching for compound words can confuse the search engine and yield unpredictable results. An example is the word invalidate, which can also return validate, invalid, and valid. The solution is to put quotes around the search term, like this: "invalidate".
- Use the left-hand navigation bar to open exactly what you need in the documentation.
  - If you can’t see the navigaton bar, widen the window until the bar appears, or use a device with a wider screen.
- Consult the introduction pages for each manual and chapter to decide where to look for what you need.
- To send someone a specific documentation location, copy the URL occurring after the word content/ and have them paste it into their own URL in the same place, as shown below:

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- Click on the logo for the onsemi website when you need additional information or downloads.
- Click the buttons below to immediately find:
  - RSL15 Getting Started guide
  - Conventions used in this documentation
  - Additional, externally-sourced information in PDF format
  - The online Community Forums

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