SMBus Electrical Validation and Protocol Decode Software
SMBus Electrical Validation and Protocol Decode Software offers electrical measurements and testing and protocol decoding as specified in the SMBus specification (version 3.2). PGY-SMBus Electrical validation and Protocol decode software runs in Tektronix Oscilloscope and provides electrical measurements and protocol decode at the click of a button. This allows engineers quickly check for SMBus conformance and flexibility to debug the failure. In addition to this, engineers can decode the command and response of SMBus to debug the communication.
PGY-SMBus takes advantage of digital channels of MSO and provides the decoding of SMBus data lines.
Key features
- Automated electrical measurements as specified in version 3.2 of SMBus specification documentation.
- Supports electrical measurement for 100KHz, 400KHz, and 1MHz speed with limit comparison.
- Decodes SMBus signals of different speeds for easy understanding of the protocol.
- Links the protocol content to the electrical signal in the oscilloscope for easy understanding of the electrical characteristics of the SMBus protocol.
- Overlays the protocol data on the analog waveform in a bus diagram window.
- Zooms the selected SMBus packet content in the decode table in the bus diagram display for easy analysis of the electrical characteristics of the SMBus frame.
- Color codes protocol content for easy analysis. (e.g. SMBCLK, SMBDAT, Address, Data, ACK,etc.)
- Search capabilities to locate unique events in thousands of protocol data.
- Ability to view protocol and decoded data in hexadecimal, decimal, binary, octal, and ASCII formats.
- Ability to store the SMBus protocol data in CSV and text format.
- Utility features zoom, undo, and fit the screen for easy debugging while correlating the protocol data to the waveform.
- Report generation in PDF format. Option to include Configuration, Electrical parameters measured, saved images, Protocol listing in the report.
- Supports .wfm (Tektronix) .trc (LeCroy)and .H5 (Keysight) file format for offline analysis.
Seamless Integration with Oscilloscope
PGY-SMBus 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 the electrical signal in the bus diagram.
Specification – Details
Electrical Measurements
| SMBCLK-Clock frequency | SMBDAT Output Hold Time |
| High Period-SMBCLK | Setup Time (R) START condition | |
| Low Period-SMBCLK | Hold Time (R) START condition | |
| Rise Time (SMBCLK, SMBDAT) | Setup Time for STOP | |
| Fall Time (SMBCLK, SMBDAT) | Data valid Time | |
| SMBDAT Input Rise Time | Bus free time b/w STOP and START | |
| SMBDAT Output Rise Time | Input Low Voltage (VIL) | |
| SMBDAT Input Fall Time | Input High Voltage (VIH) | |
| SMBDAT Output Fall Time | Output Low Voltage (VOL) | |
| SMBDAT Input Setup Time | Overshoot (SMBCLK, SMBDAT) | |
| SMBDAT Output Setup Time | Undershoot (SMBCLK, SMBDAT) | |
| SMBDAT Input Hold Time |
| Input Source | Oscilloscope (or) .wfm file for offline analysis |
| Bus Speed | 100KHz, 400KHz, 1MHz |
| Protocol Decode radix | Hexadecimal, Octal, Binary, Decimal, ASCII |
| Find/search | Data and Address |
| Waveform window | Overlay of protocol decode data on waveform |
| Report generation | Customizable report in PDF format |
| Export of data | CSV and TXT format |
