I²C

I²C is a two-wire serial communication bus that uses a multi-master/slave architecture. It was developed by Philips in the 1980s as a communication specification for connecting low-speed peripherals to motherboards, embedded systems, or mobile devices. It is widely used in electronic circuit systems. I²C only uses two bidirectional signal lines, namely the clock line (SCL) and the data line (SDA). The signal content includes start, address, data, read/write, and so on. The transmission is bidirectional, and the data format can be either 8 bits or 10 bits. The transmission speed ranges from 100 kbit/s to 3.4 Mbit/s.

Logic Analyzer / MSO

TB3016F

TB3000 series Specifications PDF

MSO2116E (w/ analog channels)

MSO2000 series Specifications PDF

MSO3124V (w/ electrical validation)

MSO3000 series Specifications PDF

Model	TB3016F	MSO2116E	MSO3124V
Decode / Trigger	y	y	y
Analog Channels		y	y
Electrical Validation			y

I²C Decodes / Waveforms

Effectively solves the problem of slow signal transitions during actual measurements of I²C signals, making it difficult to measure. Able to stack with a DSO to form as an MSO.

Save as TXT/CSV

In Logic Analyzer mode, click the icon above the report area to save the decoded data as a TXT/CSV file.

I²C Protocol Analyzer Report

A user-friendly software interface with just 3 simple steps to start capturing bus data. Designed with USB 3.0 for fast data transfer, and when used with a 64-bit operating system, it fully leverages the PC’s memory, enabling long-term data capture of serial bus protocols, ranging from hours to days. When the simultaneous waveform capture option is enabled, users can view both protocol data and the corresponding digital waveforms in real time, making it an efficient data acquisition (DAQ) solution.

Save as TXT/CSV

In Protocol Analyzer mode, click the icon above the report area to save the decoded data as a TXT/CSV file.

I²C Electrical Validation

Use an oscilloscope for I²C electrical validation to ensure compliance with defined specifications. After an extended burn-in test, the oscilloscope confirms that the electrical characteristics of the signal meet the required standards.

Supported Models: TS3124V (4-channel DSO), MSO3124V (4-channel DSO + 16-channel LA)

Electrical Validation Solution PDF

I2C Decoding Setup Steps

1. Click Quick Settings or Add Protocol Decode to select a protocol for logic analyzer capture.

2. Select I2C for decoding.

3. If you use Quick Settings, the system will recommend configurations for trigger type, sampling rate, voltage threshold, and channel settings.

4. Click the icon to access the Decode Settings screen.