 Engineers, designing and testing I2C hardware and firmware, need to measure
electrical parameters and monitor protocol of I2C interface to ensure
inter-operability. Engineers test and debug their designs with easy-to-use
instruments such as oscilloscopes to capture the electrical signals but use
time-consuming and error prone tools to make electrical measurements and
protocol analysis. Often, they need a single tool or instrument to cross-examine
the protocol layer and the PHY layer to debug the designs to reduce development
and testing cycle. The PGY-I2C Electrical measurements and Protocol Decode Software offers
electrical measurements and protocol decoding as specified in Rev 03, June 2007
I2C Bus specification. Now design and test engineers can automatically make
accurate and reliable electrical measurements and decode protocols in PGY-I2C
software using data acquired by Tektronix DPO5000, TDS7000, DPO/DSA/MSO7000
oscilloscope series to reduce the development and test cycle. Seamless Integration with Oscilloscope
 PGY-I2C runs inside the Tektronix oscilloscopes and makes the electrical
measurements, decodes protocols and displays the decoded data in a bus diagram,
a table, and links the decoded data to electrical signal in the bus diagram. I2C
Protocol-based trigger can be se tup using the built-in I2C trigger capabilities
in Tektronix oscilloscopes.
| Electrical Measurements |
SCL Clock Frequency |
Data Valid Acknowledge time |
| High Period-SCL |
Rise Time |
| Low Period-SCL |
Fall Time |
| Hold Time at Sr Condition |
Data Setup time |
| Setup Time Sr Condition |
Bus free time between stop Data Valid Time and start Condition |
| Data Valid Time |
| Data Hold time |
Setup time for Atom |
| Bus Speed |
Standard, Fast, Fast plus, and High speed |
| Protocol Decode |
Hexadecimal, Octal, Binary, Decimal, ASCII |
| Find/Search |
Data and Address |
| Waveform window |
Overlay of protocol decode data on waveform |
| Report Generation |
Customizable report in html format |
| Export of data |
CSV and Txt format |
• Automated electrical measurements as specified in Rev 3 June 2007 I2C Bus specification documentation.
• Supports electrical measurement for standard, fast, fast plus and high-speed with limit comparison
• Decodes standard, fast, fast plus and high-speed I2C signals for easy understanding of protocol between master and slave
component.
• Links the protocol content to the electrical signal in the oscilloscope for easy
understanding of the electrical characteristics of the
protocol.
• Overlays the protocol data on analog waveform in a bus diagram window.
• Zooms the selected I2C packet content in the decode table in the bus diagram display for easy
analysis of electrical characteristics
of the I2C frame.
• Color codes protocol content for easy analysis.
• Search capabilities to locate unique events in thousands of protocol data.
• Ability to view protocol decode data in hexadecimal, decimal, binary, octal, and ASCII formats.
• Ability to store the I2C protocol data in CSV and txt format.
• Utility features like zoom, undo, and fit screen for easy debugging while correlating the protocol data to the
waveform.
• Report generation in html format.
• Supports wfm and isf file formats for offline analysis.
Oscilloscopes Supported
The following Tektronix oscilloscopes are supported:
• DPO5000 Series
• DPO7000 Series
• DPO/MSO/DSA 70000 Series
Ordering Information
PGY-I2C Electrical Measurements and Protocol Decode Software (shipment includes CD with PGY-I2C software and license key).
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