Ing score in parenthesis | Xilinx 8.2i instruction

Chapter 9: PAR

Phase 12.5

Phase 12.5 (Checksum:7270df4) REAL time: 47 secs

Writing design to file c:\test\par0.ncd

Total REAL time to Placer completion: 47 secs

Total CPU time to Placer completion: 8 secs

The router portion of the PAR report shows that the router has been invoked. It displays each phase of the router and reports the number of unrouted nets, in addition to an approximate tim-

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Starting	Router
Phase 1:	231 unrouted;		REAL time: 51		secs
Phase 2:	154 unrouted;		REAL time: 51		secs
Phase 3:	21	unrouted;	REAL time: 51	secs
Phase 4:	21	unrouted; (347)	REAL time: 51				secs
Phase 5:	21	unrouted; (0)	REAL time:	51		secs
Phase 6:	21	unrouted; (0)	REAL time:	51		secs

Phase 7: 0 unrouted; (0)		REAL time:	51 secs
Total	REAL time to Router completion: 51		secs
Total	CPU time to Router	completion: 10 secs

Generating "par" statistics.

The next portion of the PAR report contains the Clock Report, which includes a clock table that

lists all clocks in the design and provides information on the routing resources, number of

fanout, maximum net skew for each clock, and maximum delay. The Locked column in the clock

table means the clock driver (BUFGMUX) is assigned to a particular site instead of left floating.

Note: The clock skew and delay listed in this table differ from the skew and delay reported in

TRACE, or Timing Analyzer. PAR takes into account the net that drives the clock pins whereas

TRACE and Timing Analyzer include the entire clock path.

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Development System Reference Guide

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.

Xilinx 8.2i manual Ing score in parenthesis

Models: 8.2i

Chapter 9: PAR

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Development System Reference Guide

8.2i specifications