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Chapter 19

TSIM

TSIM is compatible with the following families:

CoolRunnerXPLA3, CoolRunner-II

XC9500, XC9500XL, XC9500XV

This chapter describes the TSIM program. This chapter includes the following sections:

“TSIM Overview”

“TSIM Syntax”

“TSIM Input Files”

“TSIM Output Files”

TSIM Overview

The TSIM program is a command line executable that takes an implemented CPLD design file (VM6) as input and outputs an annotated NGA file used by the NetGen program. The NetGen Timing Simulation flow produces a back-annotated timing netlist for timing simulation. See the “CPLD Timing Simulation” section in Chapter 22, “NetGen” for more information.

TSIM Syntax

Following is the syntax for the TSIM command line program:

tsim design.vm6 output.nga

design.vm6 is the name of the input design file (VM6) output by the CPLDfit program. See Chapter 18, “CPLDfit” for more information.

output.nga is the name of the output file for use with the NetGen Timing Simulation flow to create a back-annotated netlist for timing simulation. If an output file name is not specified, TSIM uses the root name of the input design file with a .nga extension.

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Xilinx 8.2i manual Tsim Syntax

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.