Simplifying Dual-End MIPI I3C® Logic Translator Validation Without the Complexity

Discover how a unique validation use case was transformed into an efficient, scalable workflow with complete compliance and minimal overhead.

The advancement of technology and its applications in domains like automotive ADAS, wearable sensor fusion, and modular industrial systems has led to tighter integration of sensors and controllers within electronic systems. This evolution demands high-speed, multi-device communication over compact PCBs, often through a single communication bus.  

While protocols like MIPI I3C® are designed to support high-bandwidth, low-power communication, they come with physical layer limitations on how many devices can be connected to a single bus. Logic translators overcome this constraint by isolating a group of devices into a secondary bus while maintaining seamless communication with the main bus. However, validating a MIPI I3C® logic translator is a nuanced process with unique considerations.  

This case study delves into the customer’s specific validation needs, the challenges posed by this unique use case, and how Soliton helped simplify the process and ensure precise protocol compliance. 

Breaking Down the Customer’s Validation Needs 

One of our customers, a prominent semiconductor company, developed a I3C logic translator to bridge between the main controller and additional target devices. Unlike validating a standalone MIPI I3C® controller or target device, the validation of a logic translator introduces added complexity. Here, both the input (controller-facing) and output (target-facing) interfaces must be tested simultaneously. This dual-end validation posed significant challenges in terms of setup, coverage, and precision.