Xilinx 8.2i manual Fmap, Fpga

Models: 8.2i

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floorplanning

Floorplanning is the process of choosing the best grouping and connectivity of logic in a design.

It is also the process of manually placing blocks of logic in an FPGA where the goal is to increase density, routability, or performance.

flow

The flow is an ordered sequence of processes that are executed to produce an implementation of a design.

FMAP

An FMAP is a symbol that defines mapping into a 4-input function generator (F or G).

FPGA

Field Programmable Gate Array (FPGA), is a class of integrated circuits pioneered by Xilinx in which the logic function is defined by the customer using Xilinx development system software after the IC has been manufactured and delivered to the end user. Gate arrays are another type of IC whose logic is defined during the manufacturing process. Xilinx supplies RAM-based FPGA devices.

FPGA applications include fast counters, fast pipelined designs, register intensive designs, and battery powered multi-level logic.

function generator

A function generator is a look-up table or black box with three or four inputs implementing any combinational functions of (22)4 or 256 functions or (22)2 or 65556 functions. The output is any value resulting from the logical functions executed within the box. The function generator implements a complete truth table, allowing speedy prediction of the output.

functional simulation

Functional simulation is the process of identifying logic errors in your design before it is implemented in a Xilinx device. Because timing information for the design is not available, the simulator tests the logic in the design using unit delays. Functional simulation is usually performed at the early stages of the design process.

G

gate

A gate is an integrated circuit composed of several transistors and capable of representing any primitive logic state, such as AND, OR, XOR, or NOT inversion conditions. Gates are also called digital, switching, or logic circuits.

Development System Reference Guide

www.xilinx.com

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Xilinx 8.2i manual Fmap, Fpga

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.