U7249C and U7249D MIPI® M-PHY®, Conformance Test Software for Infiniium Oscilloscopes

Introduction 

The Keysight Technologies, Inc. MIPI M-PHY conformance test software for Infiniium oscilloscopes gives you a fast, easy way to validate and debug your embedded M-PHY data links. The M-PHY electrical test software allows you to automatically execute M-PHY electrical checklist tests for DigRF v4, UniPro, LLI, UFS, CSI-3, SSIC and M-PCIe architectures, and displays the results in a flexible report format. In addition to the measurement data, the report provides margin analysis that shows how closely your product passed or failed each test. The M-PHY conformance test software performs a wide range of tests required to meet the physical layer requirements per Section 5.1 of the MIPI Alliance Specification for M-PHY v3.1 and M-PHY Conformance Test Suite (CTS) v3.0. The M-PHY conformance test software helps you execute the most difficult physical layer tests for transmitters (TX tests only) that can be measured with a 6 GHz or higher-bandwidth realtime oscilloscope. Although there are not currently any requirements for physical layer compliance verification, it is highly recommended that every MIPI M-PHY link be tested against the limits of the physical layer specification to ensure that it is compliant to the specification and to minimize concerns with protocol level interoperability. 

M-PHY app 

The M-PHY conformance test software saves you time by setting the stage for automatic execution of required electrical tests. The primary difficulty of performing electrical tests for M-PHY is connecting the oscilloscope to the target device, correctly configuring the scope’s measurement system for ultimate accuracy, issuing the proper commands to perform the tests and then analyzing the measured results by comparing them to limits published in the specification. The M-PHY conformance test software automates this work to provide rapid, accurate and repeatable test execution. In addition, if you discover a problem with your product, debug tools in the scope are available to aid in root-cause analysis.See Group 1 and 2 for a complete list of the measurements you can make with the MIPI M-PHY conformance test software. 

Easy Test Definition 

The M-PHY conformance test software extends the ease-of-use advantages of Keysight’s Infiniium oscilloscopes to testing M-PHY designs. The Keysight automated test engine walks you quickly through the steps required to define and configure the tests, execute the tests, and view the test results. You can select a category of tests all at once or specify individual tests. The user interface is oriented to minimize unnecessary reconnections, which saves time and ensures accuracy and repeatability of tests. You can save tests and configurations as project files and recall them later for quick re-testing or review of previous test. Straightforward menus let you perform tests with a minimum of mouse clicks. 

Configurability and Guided Connections 

The M-PHY conformance test software provides flexibility in your test setup. The M-PHY conformance test software provides you with user-defined controls for critical test parameters such as channel probe configurations, number of measurement observations for tests and the low- power trigger threshold. After you configure the tests to meet your needs, the user interface will present you the connection screen that is specific to the configuration data you have selected. This includes the oscilloscope channels used for the test and the routing of any necessary probing needed to perform the tests. In some cases, a configuration change may be necessary to properly make a new set of measurements. Guided configuration diagrams will be presented when each change is needed to ensure proper configuration for the tests. The software is designed to minimize connection changes to increase the efficiency of test operation and save you time. 

Results Reports with Margin Analysis 

In addition to providing you with measurement results, the M-PHY test software provides a report format that shows you not only where your product passes or fails, but also reports how close you are to the limits specified for a particular test assertion. You select the margin test report parameter, which means you can specify the level at which warnings are issued to alert you to the electrical tests where your product is operating close to the official test limit defined by the specification for a given test assertion.