NEX-PCI64HS

The NEX-PCI64HS Bus Adapter was designed for PCI applications running 66MHz and faster. It is an impedance controlled matched trace length design that uses no buffering or latching. This was done to achieve functionality at high bus rates and is preferred for timing analysis with a Logic Analyzer. The NEX-PCI64HS provides clocking, setup, disassembly, and a quick convenient connection to the PCI Bus. Support is included for 32 or 64-bit PCI. It is an extender card design that uses Tek high density connectors. Two versions of this product are available, one for 5V systems (NEX-PCI64HS5) and one for 3.3V systems (NEX-PCI64HS3). Please specify the appropriate product when ordering. Disassembly software is also included (NEX-PCI32HS and NEX-PCI64HS).

Disassembly: Class, Sub-Class, and Prog. I/F information is displayed in hexadecimal form, but then is further decoded to tell the user exactly what Class and Sub-Class of device is being accessed (Mass Storage, Display, Network, etc.). The command and status registers are decoded, the bit-level information displayed in easily understood form. Disassembly Screen Shot #1 is a screen shot showing both of these features, with Disassembly Screen Shot #2 showing the read from the status register and the setting of a control bit through a Configuration Write.

Invalid data bytes are dashed out during valid Data Cycles.

There are also 3 Select Fields in the Define Format menu of the Disassembly Display. These fields permit choosing whether I/O, Memory, and Configuration Cycles are highlighted or displayed normally. Changing the Display Format from Hardware to Software, Control Flow, or Subroutine will suppress the display of those cycles that are set to Normal mode. This permits focusing in on information that is of interest. Display Format Screen Shot shows the Define Format menu window.

Timing Analysis: By acquiring data in asynchronous mode on the Tektronix Logic Analyzer, high speed accurate timing measurements can be made of the PCI Bus up to 2Ghz (500 ps) using a Tek TLA600/700 system..

Correlating Bus Activity: While the NEX-PCI64HS package is being used to monitor the PCI backplane activity, another acquisition module can be used to monitor activity elsewhere in the system. The results of the two acquisitions can be correlated in time to determine the sequence of actions that occurred. For instance, the system microprocessor could be monitored and correlated with bus activity to verify the proper response to an external interrupt condition.

LAs Supported / Channel Count Requirement

Extender Board TLA600/700 Support (Can be used with TLA7L/M/N/P or Q cards)DAS9200 & TLA500 (92A96/C96) Support Prism 3000 32 GPX Support TLA700 Channels Required Notes
YY NN 102 5V or 3V, 64-bit, controlled impedance, matched trace length