I2C Protocol Validation Suite & Services

I2C Protocol Validation Suite & Services

DATA SHEET
I2C Protocol Validation Suite - Specifications

Product Details

  • Overview
  • Functional Coverage ​
  • Parametric Coverage
  • Features
  • FAQ
Overview

I2C (Inter-Integrated Circuit) is an asynchronous, 2-wire serial communication protocol. I2C Protocol is well suited for data transfer between ICs at relatively low speed. Its simple 2-wire interface simplifies IC design with fewer pins and smaller packages thus reducing the board space and cost. As a part of product validation, it’s important to validate the product’s conformance against the protocol specification to ensure the interoperability of the product.

 
As the complexity of the protocol and product increases, the validation time of the protocol interfaces also increases which in turn reduces the RTM. Performing the protocol conformance testing in the traditional way needs a lot of time and effort. 
 
Soliton’s I2C Validation Suite is an off the shelf validation tool using NI’s PXI platform, which helps to validate the devices’ compliance with the timing and electrical specifications of the NXP I2C protocol. The tool can also validate the device’s tolerance to and recovery from a variety of I2C faults & exceptions and provides a comprehensive set of reports. Users have claimed that using this automated solution for I2C Validation has brought down the test time/ validation time from few days to few hours.

Functional Coverage ​
SPEED MODES
  • Standard mode
  • Fast mode
  • Fast Plus mode
  • Highspeed mode (1.7MHz)
  • Highspeed mode (3.4MHz)
I2C PROTOCOL FEATURES
  • START Condition
  • STOP Condition
  • Acknowledge
  • General Call Address
  • Software Reset
  • Device ID
  • Open Drain (Test Different Pull-Ups)
I2C FUNCTIONAL TESTS
  • Register Write
  • Register Read
  • Write N Bytes
  • Write N Bytes
  • Write N – Read N Bytes (Combined Format)
I2C FAULT TESTS
  • Send additional clock bit
  • Skip clock bit
  • Skip START / STOP/ RP-START/ BYTE/ACK
  • Send NACK
  • Send ACK for last Read Byte
  • Send invalid Register Address / Data Byte
Parametric Coverage
I2C Legacy Timing Parameters​
  • fSCL SCL Clock Frequency​
  • tSU;STA (Setup Time for a Repeated Start Condition) 
  • tHD;STA (Hold Time (repeated) Start Condition)
  • tLOW (Low Period of the SCL Clock)
  • tHIGH (High Period of the SCL Clock)
  • tSU;DAT (Data Setup Time)
  • tHD;DAT (Data Hold Time)
  • trCL (Rise Time of SCL Signal)
  • tfCL (Fall Time of SCL signal)
  • trDA (RiseTime of SDA Signal)
  • tfDA (Fall Time of SDA Signal)
  • tSU;STO (Setup time for STOP Condition)
  • tBUF (Bus Free Time between a Stop and Start Condition)
  • tSP (Pulsewidth of spikes to be filtered)
  • tVD;DAT (Data Valid Time)
  • tVD:ACK (Data Valid Acknowledgement Time)
  • trCL1 (Rise Time of SCL signal after Repeated Start/ACK)
Electrical IO Validation
  • VIL (Low level input voltage)
  • VIH (High level input voltage)
  • Vhys (Hysteresis of Schmitt Trigger inputs)
  • VOL (Low level output voltage)
Features
Features of I2C Protocol Validation
  • ISO 9001 Certified Product
  • Simple, Flexible, Modular, and Light Bench Setup
  • Easy to use I2C Protocol Exerciser and Debugger to perform various I2C transactions with controllable timings/voltage levels
  • Protocol compliance testing with zero coding
  • Comprehensive reporting feature to report the test pass/fail reports
  • Generates Full Compliance reports in less than 2 hours
  • Reproduce failure cases in a few clicks
  • Easy to build and test custom device-specific tests
  • Automation Capability (DLLs/APIs) from external programming environment/automation frameworks like LabVIEW, C#, Python, TestStand, etc
  • Leverage Soliton’s experience in protocol validation and debugging
FAQ
What kind of engagement models is offered for I2C Validation​

We offer 2 engagement models. In the First mode, the user can purchase a license of the I2C Validation Suite and do the validation in-house. In the second mode, the user can send us 3 DUT's, we will do the I2C validation and send the test reports in 3 working days​

How is this product different from existing Protocol Exercisers, Debugger or Analyzers?

This product is mainly used for performing functional and electrical compliance validation of the I2C devices (post-silicon validation) whereas the other existing protocol exercisers, debuggers, or analyzers are used for performing basic functional tests during the device bring up​

Can't I build a home-grown solution instead?

While this is certainly an option, we expect that it will take a highly experienced automation engineer between 3-6 months to create the first version of a similar tool. To create a robust and flexible tool takes experience, and we have been improving this tool over the last 3 years since its release. We believe it is worth the cost to skip the learning curve and avail of our comprehensive report or validation suite.​

What else can I do with NI's PXI chassis/modules?​

The PXIe-657x module is a general-purpose programmable pattern generator and acquisition device with deep memory. It can be used for other protocol validation tools from us. Also, it can be programmed using LabVIEW or other programming languages to emulate any synchronous digital protocol. NI’s PXI chassis supports high bandwidth and synchronization-friendly control and reads back from a huge variety of digital, analog, and special-purpose modules in a compact form factor.​

What is the interposer board referenced in the system diagram?​

The Protocol Validation Suite requires custom external circuitry for signal conditioning. Each purchase comes with a complimentary interposer board, which is a separate PCB designed and delivered by us. ​

What oscilloscope models are supported?​

The Protocol Validation Suite supports any NI scope by default. The tool has a flexible architecture that allows the support of other oscilloscope models. We can help you in building the oscilloscope plugin for one of your oscilloscopes​

What type of documentation and training will be available for each solution?

User manuals, Getting started guides, and tutorial videos are available for each solution and can be easily accessed from within the product. Additionally, we will provide short live training sessions upon request. ​

Whether the tool can be used for validation out of box?​

Yes, The tool comes with out of box test scripts which can be used for validation after entering the device-specific details​

Why was I2C Master- I2C Slave terms are renamed to I2C Controller I2C-Target?​

As a part of terminology replacement efforts within MIPI Alliance, MIPI Alliance has deprecated the Master-Slave terminologies and replaced them with Controller-Target terminologies in MIPI I3C® specifications. Based on this NXP has changed the terminologies in the I2C specifications.​

Peek and Poke GUI for interactive debug of the I2C interface. This helps to exercising and debugging the I2C communication manually. User can configure any allowed timing/voltage parameters to debug the transactions. ​
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Peek and Poke GUI for interactive debug of the I2C interface. This helps to exercising and debugging the I2C communication manually. User can configure any allowed timing/voltage parameters to debug the transactions. ​
Automated Test Screen which is used to execute the test created and generate the compliance report​
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Automated Test Screen which is used to execute the test created and generate the compliance report​
Report Viewer Screen to visualize and debug the test reports generated by the tool after executing the validation tests​
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Report Viewer Screen to visualize and debug the test reports generated by the tool after executing the validation tests​
Peek and Poke GUI for interactive debug of the I2C interface. This helps to exercising and debugging the I2C communication manually. User can configure any allowed timing/voltage parameters to debug the transactions. ​
Automated Test Screen which is used to execute the test created and generate the compliance report​
Report Viewer Screen to visualize and debug the test reports generated by the tool after executing the validation tests​

Technical Documentation

Soliton’s I2C Validation Suite is an off-the-shelf validation tool using NI’s PXI platform, which helps to validate the devices’ compliance with the timing and electrical specifications of the NXP I2C protocol. It contains the below components. 

  • NI PXIe 657xDigital Pattern Generation Card with the PXIe Chassis setup
  • Soliton PVS Interposer Board
  • Oscilloscope – For performing voltage measurements
  • Soliton I2C Validation Suite Software compatible with Windows OS (Win 10) 
For more details, download the datasheet
I2C Protocol Validation Suite - Specifications

Hardware

Soliton’s I2C Validation suite is based on the NI – PXI Platform and the below NI part configuration lists the hardware required to perform the validation.

The solution also needs a custom Interposer Board for signal conditioning purposes.

 

The DUT can be connected through the Berg Connector​
The DUT can be connected through the Berg Connector​

Support & Training

For any queries, contact us at [email protected]. We will respond within 1 Business day

 

TYPICAL USER BASE FOR I2C VALIDATION SUITE

 

  • Design Engineers, Test Engineers, Post Silicon Validation Engineers, Engineering Managers, Validation Managers, Lab Managers, etc. from the Semiconductor Industry
  • Post Silicon validation of Chips with I2C interface
  • Semiconductor Chip Manufacturers making I2C Devices
  • Companies making QSFP+ Pluggable Optical Transceivers used in optical fiber technology. These companies need to adhere to and test against the SFF-8679 specification which includes specs for the 2-wire I2C Interface. Hashtags: QSFP Protocol Validation, SFP Protocol Validation, QSFP Testing, SFP Testing, SFF Compliance, SFF-8679 Compliance.
  • Companies making display devices that need to comply with and test against the I2C Bus specifications listed in DDC, DDC2B, DDC2Ab, DDC2B+, DDC2Bi, E-DDC standards. Hashtags: DDC Compliance, DDC2B Compliance, DDC2Ab Compliance, DDC2B+ Compliance, E-DDC Compliance, EDID Compliance, EDID physical layer validation
  • SMPS Unit Manufacturers who need to test against PMBus, an evolution of the I2C Specification
  • Memory, NVMe SSD Manufactures to test against SMBus Specifications
  • 2-wire interface on ATCA Compliant controllers and devices
  • 2- wire CCI interface between the camera sensor and mobile baseband processor
  • Semiconductor Chip Manufactures make devices with a Two-wire interface

 

OTHER PROTOCOL VALIDATION SERVICES OFFERED BY SOLITON

 

I3C Protocol Validation     SPI Protocol Validation     SPMI Protocol Validation     RFFE Protocol Validation

 

UART Protocol Validation     SMBus Protocol Validation     PMBus Protocol Validation     

 

PROTOCOL VALIDATION BLOGS

 

Woes of Protocol Validation                    Easier Protocol Validation

Upcoming WebinarEffortless Digital Interface Compliance Testing

Join our free, one-hour webinar on January 12, 2022, to explore Soliton's Protocol Validation Solutions.

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