- PCI Express Gen 1.x, 2.0, and 3.0 (Vs. 0.7) compatible
- Decode up to two bidirectional lanes, or four lanes in one direction
- Link layer protocol decode
- Speed change compatible
- Recognizes scrambled or unscrambled data
- Color-coded decode overlaid on the waveform is intuitive and easy to read
- Decode information expands as the timebase is adjusted or zoomed
- Convenient table display with quick “zoom to message” capability
- Quick search capability for specific link layer frames
Protocol Awareness in Your Physical Layer Tool
Oscilloscopes are the preferred tool for the hardware engineer, but have been of limited utility in interpreting serial data protocols. Protocol Analyzers are powerful, but don’t show physical layer waveforms. The PCIe decode option for Teledyne LeCroy oscilloscopes provides link layer decode information annotated on the PCIe Gen 1.x, 2.0 or 3.0 physical layer waveform. This provides the ability to view protocol traffic on the oscilloscope and verify that the link is alive and transmitting properly. It also aids in debugging problems that are not solely analog or digital in nature, such as interoperability issues, uncertain error causes, and physical layer issues not evident with a Protocol Analyzer.
Intuitive Decode Annotation
Various sections of the protocol are color-coded to make it easy to understand. Decode annotation information condenses or expands depending on the timebase/zoom ratio setting. Additionally, 8b/10b decode annotation (a separate option) may also be applied for symbol level debugging. The decode operation is fast—even with long acquisitions.
Convenient Table Display and Search
Long oscilloscope acquisition memory provides long capture times of PCIe transmissions. Decoded information is conveniently shown in a table format, and specific frame types may be searched for. In addition, table data may be exported as a .csv file.
Support on Multiple Oscilloscope Platforms
To support the range of users, from PCIe Gen 1.x to 3.0, the option is available on a wide range of oscilloscope models with real-time bandwidths from 2.5 GHz to 30 GHz.
PCI Express Decode Annotation Option
|Protocol Setup ||Select PCIe Gen 1.x, 2.0 or 3.0. Select Starting Data Rate (2.5, 5, or 8 GT/s). Select Scrambling ON or OFF (if no TS2). |
|Decode Capability |
|Format||PCI Express Link Layer Protocol Decode|
|Decode Setup ||Threshold definition required. Default is to Percent amplitude. Select Data Rate and Scrambling ON/OFF. |
|Decode Input ||Any analog Channel, Memory or Math trace. |
|# of Decoded Waveforms ||Up to 4 unique Tx or Rx lanes may be decoded at one time. In addition, zooms can be displayed (with decoded information). |
|Location||Overlaid on PCI Express physical layer waveform, on Grid.|
|Visual Aid||Color Coding for TS1/SKIP, TS2, Electrical Idle or Error/Unrecognized, Compliance/Modified Compliance, Compliance Delayed/Modified Compliance Delayed, DLLP, TLP, Logical Idle, EIOS/EIEOS/FTS Decode information is intelligently annotated based on timebase setting.|
|Search Capability |
|Pattern Search||Search by the following frame types: Compliance, EIEOS, EIOS, Electrical Idle/Error, DLLP, Logical Idle, SKIP, TLP, TS1, TS2, Unrecognized, or Any Type |
|Compatible With||Fully compatible with WP7Zi, WM8Zi, WP7000, and WM8000 oscilloscopes and analyzers based on these platforms. Bandwidth recommended to be equal to or greater than the PCI Express GT/s rate, with a minimum oscilloscope sample rate requirement of 4x the data rate.|