Data Sheets
PCI Express® (peripheral component interconnect express), PCIe, is a computer expansion card standard that enables high-speed serial technology. There are two main technologies protocol speeds from 2.5 Gb/s to 5 Gb/s (gen1 and gen2 respectively). PCIe gen 2 satisfies the increased need for bandwidth of high-performance applications such as graphics, and also allows existing applications to retain bandwidth while moving to a reduced pin count. The smaller link width ultimately leads to lower system cost. To understand what is occurring on the bus typically you must convert captured 1’s and 0’s to protocol with either protocol analyzer or manually. Of course, manually means that it can’t be done in real-time, and includes potential for human error. Using a protocol analyzer sometimes increases the price for the PCIe solution as it requires an entirely new instrument. Unfortunately traditional oscilloscope hardware triggers and software capability typically are not sufficient for specifying protocol-level conditions and decoding complicated busses.
Keysight Technologies, Inc. Infiniium PCIe protocol viewer software enables the industry’s first totally integrated oscilloscope-based protocol analyzer that provides time correlated views of physical layer and transaction layer errors. You get packet-level decode for PCI Express built into a real-time oscilloscope. This software provides you with a fast, easy way to isolate signal integrity problems from logic-level coding errors on bidirectional serial data streams. This capability allows you to test, debug and characterize your designs to the logic and link layer. Extend your scope capability with Infiniium’s protocol viewer application. This application makes it easy to debug and test designs that include PCIe gens 1 and 2 using your Infiniium 90000 scope.
Unique packet-waveform correlation marker “blue line” makes it easy to scroll through waveforms to view synchronized packet and symbol lists
Rapid setup
Configure your oscilloscope to display protocol decode in under 30 seconds. Typically a variety of factors must be specified correctly in order for both software triggering and serial decode to work. These factors include sample rate, memory depth, trigger levels, and measurement thresholds. The application includes an AutoSetup capability that will automatically setup all of these parameters for the user. Or, choose to manually configure any or all of these scope settings or use the Serial Data Wizard.
Use protocol viewer as a trigger out of the trigger menu, for the most in depth and complete software triggering available in oscilloscopes today.
Protocol decode
This application provides protocol decode capabilities. Decode can be turned in the “Setup” menu. Decode can be shown as symbols embedded on the waveform display or as a listing in a protocol viewer window. All decoding is time correlated.
Keysight’s multi-tab protocol viewer includes correlation between the waveforms and the selected packet. The selected packet, highlighted blue row in the listing, is time-correlated with the blue line in the waveform display. Move the blue tracking marker in time through waveforms and the blue bar will automatically track in the packets window. Or, scroll through the packet viewer and highlight a specific packet. The time-correlation tracking marker will move to the associated point in the waveform.
Support for bi-directional serial and packet decode
Choose up to two channels and get deep decoding capability for upstream and downstream bi-directional PCIe bus Infiniium 90000 windows.
Full screen PCIe listing
Fill the entire display with compact protocol information using the full screen listing. The protocol viewer window shows the index number, time stamp value, and data content for each serial packet in the list. Scroll though all decoded serial packets to find events of interest or errors in the transmission. Data in the listing window can be saved to a .csv or .txt file for off-line analysis or documentation.
Easy navigation with search
The application includes a powerful serial search tool that allows you to search for a pattern that is a data control symbol or packet. The search capability also includes a comprehensive packet search and trigger capability that allows you to specify search conditions like errors or data packets. This allows you to specify desired trigger conditions and makes finding errors or packet types easy by eliminating the need to do manual searches of very long records.
The application Includes five “tabs” for easy viewing of the PCIe bus:
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