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Xilinx 8.2i manual Speedprint Example Commands, Speedprint Example Reports, Specify Voltage

Models: 8.2i

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Speedprint Example Commands

–v (Specify Voltage)

–vvoltage

The –v option specifies the operating voltage of the device in volts. If this option is omitted, the worst-case voltage is used.

Speedprint Example Commands

The following table describes some example commands:

Command

Description

 

 

speedprint

Prints usage message

 

 

speedprint 2v80

Uses the default speed grade

 

 

speedprint –s -52v80

Both displays block delays for

speedprint -s 5 2v80

speed grade -5

 

 

 

speedprint –2v50e -v 1.9 -t 40

Uses default speed grade at 1.9

 

volts and 40 degrees C

 

 

speedprint v50e -min

Displays data for the minimum

 

speed grade

 

 

Speedprint Example Reports

Following is a portion of a speed grade report for a Virtex device. The following command generates the displayed report:

speedprint v100e

Note the new section at the end of the report. This section provides adjustments for the I/O values in the speed grade report according to the I/O standard you are using. These adjustments model the delay reporting in the data sheet. To use these numbers, add the adjustment for the standard you are using to the delays reported for the IOBs.

The default speed grade, temperature, and voltage settings are described at the beginning of the file.

Block delay report for a: xv100e

Speed grade is: -8

Version id for speed file is: PRELIMINARY 1.60 2001-06-06 xilinx

This speed file supports voltage adjustments over the range of 1.700000 to 1.900000 volts.

Temperature adjustments are supported over the junction temperature range of -40.000000 to 85.000000 degrees Celsius

Derated delay values for operating conditions within these limits are available using this speed file.

This report prepared for default temperature and voltage.

Note - this report is intended to present the effect of different speedgrades and voltage/temperature adjustments on block delays, for specific situations use the timing analyzer report instead.

Development System Reference Guide

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Xilinx 8.2i manual Speedprint Example Commands, Speedprint Example Reports, Specify Voltage, Command Description
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8.2i specifications

Xilinx 8.2i is a significant version of the Xilinx ISE (Integrated Software Environment) that emerged in the early 2000s, marking an important milestone in the world of FPGA (Field-Programmable Gate Array) development. This version introduced a slew of advanced features, technologies, and characteristics that made it an indispensable tool for engineers and developers in designing, simulating, and implementing digital circuits.

One of the standout features of Xilinx 8.2i is its enhanced design entry capabilities. This version supports multiple design entry methods, including schematic entry, VHDL, and Verilog HDL, giving engineers the flexibility to choose their preferred approach. The integrated environment provides user-friendly graphical interfaces, making it accessible for both novice and experienced users.

Xilinx 8.2i's synthesis tools have been improved to enable more efficient design compilation and optimization. The new algorithms used in this version facilitate faster synthesis times while reducing power consumption and improving performance. Furthermore, it features support for advanced FPGA architectures, which allows for the implementation of more complex designs with greater efficiency.

The implementation tools in Xilinx 8.2i include advanced place and route capabilities, utilizing state-of-the-art algorithms for optimized resource usage. These tools enable designers to make better use of FPGA resources, ensuring that designs fit within the constraints of the target device while maximizing performance.

Another key characteristic of Xilinx 8.2i is its extensive support for various Xilinx devices such as the Spartan, Virtex, and CoolRunner series. This compatibility ensures that developers can leverage the powerful features of these FPGA families, including high-speed transceivers and DSP slices.

Xilinx 8.2i also places a strong emphasis on simulation and verification. The version integrates with various simulation tools, allowing for thorough testing of the designs before implementation. This reduces the risk of errors and ensures that the final product meets specifications.

In addition, this version includes support for design constraints, enabling engineers to specify timing, area, and other critical design parameters. By accommodating constraints, Xilinx 8.2i helps in achieving reliable and efficient designs tailored to project needs.

In summary, Xilinx 8.2i is a robust software development tool that enhances the design process for FPGAs. Its comprehensive features, including multiple design entry options, advanced synthesis and implementation tools, extensive device support, and strong simulation capabilities, make it a valuable resource for engineers and developers striving for innovation in digital design.