NEX-PCIX266

PCI-X 2.0 Interposer & Software

The NEX-PCIX266 adapter board is a unique rigid/flex/rigid design. The rigid section on the bottom provides a solid connection to the PCI-X 2.0 target. The overlaying flex extends up to the compression pads, which are necessary for connection to the Tektronix P6860 probes. The flex can be easily moved to provide mechanical clearance as needed.

Disassembly:  The included NEX-PCIX266 disassembly software executes on the Tektronix Logic Analyzer and supports both PCI-X 1.0 (66/133MHz) and PCI-X 266 Mode 2 (PCI-X 266MHz). This software decodes bus transactions and displays information in an easily understood form (the same as a typical Tektronix microprocessor disassembler). All PCI-X cycle types are identified and Config cycles are decoded to reflect the meaning of the registers.

It is also possible to filter the Data Display to show only those cycle types of interest. The user can choose to display or suppress Memory, I/O, or Config cycles to permit quick and easy analysis of only those cycles of interest. Another feature of the disassembly software is its ability to intelligently acquire PCI-X 2.0 data. By taking advantage of the data clocking power built into the Tektronix Logic Analyzers, the disassembly software is able to acquire only the PCI-X 2.0 bus cycles and ignore Idle and Wait states. This means that the user is able to make optimum use of the acquisition card’s memory and see more bus transactions. For debug purposes, the user also has the ability to override this function and acquire data on every PCI-X 2.0 CLK rising edge. This permits the user to see all of the bus traffic, including the Idle and Wait states.

Timing Analysis:  Timing analysis of the PCI-X 2.0 bus can be done at up to 8GHz (125 ps) on each channel. Fast timing acquisition along with an adapter designed to provide low capacitive loading, controlled impedance, matched signal length and no active buffering results in excellent timing analysis on each channel of the PCI-X 2.0 bus.

System Requirements:

PCI-X 2.0, 266MHz requires:

  • TLA700 series Logic Analyzer
  • TLA Application Software V4.2 or later
  • TLA7Ax4 acquisition module: 136-channel, 450MHz state option
  • Four P6860 probes
PCI-X, 66/133MHz requires:
  • TLA700 series Logic Analyzer
  • TLA Application Software V4.2 or later
  • TLA7Ax4 acquisition module: 136-channel, 120/235MHz synch.
    • State clock rate must meet or exceed the PCI-X clock rate
  • Four P6860 probes