Lvttl Fast | Xilinx 8.2i instruction

Chapter 13: Speedprint

Delays are reported in picoseconds, where a range of delays is given they represent the fastest and slowest paths reported under that name.

When a block is placed in a site normally used for another type of block, a IOB placed in a Clock IOB site for example, small variations in delay may occur which are not included in this report

External Setup and Hold requirements for global clocks
Tphf	-400		Tphfd	0		Tpsf	1500
Tpsfd	1800
Delays for a BLOCKRAM
Tback	831		Tbcka		0	Tbckd	0
Tbcke	-1097		Tbcko	2453		Tbckr	-961
Tbckw	-866		Tbdck	831		Tbeck	1928
Tbpwh	1164		Tbpwl	1164		Tbrck	1792
Tbwck	1697		Tgsrq	7531		Trpw	10100
Delays for a IOB
Tch	1116	Tcl	1116	Tgsrq	7531
Tgts	4050	Tiockice	1	Tiockiq	330 -	337
Tiockisr -482		Tiocko	-573	Tiockoce 1
Tiockon2736 - 2743Tiockosr-525				Tiockp	2335 - 2342
Tiockt	-238	Tiocktce -50		Tiocktsr -481
Tioiceck	546	Tioickp	-985	Tioickpd	-2501
Tiooceck	546	Tioock	845	Tioolp	2872
Tioop	2473	Tiopi	744	Tiopick	1258
Tiopickd	2772	Tiopid	944	Tiopli	1385
.
.
.
.
I/O numbers in this report should be adjusted according to the I/O
standard being used. The adjustments are as follows:
				Input		Output
Standard Name		Slew	Drive	Adjustment		Adjustment
=============		====	=====	==========		==========
LVTTL		2	FAST		0	13001
LVTTL		4	FAST		0	5201
LVTTL		6	FAST		0	3001
LVTTL		8	FAST		0	902
LVTTL		12	FAST		0	0
LVTTL		16	FAST		0	-50
LVTTL		24	FAST		0	-200
LVTTL		2	SLOW		0	14601
LVTTL		4	SLOW		0	7401
LVTTL		6	SLOW		0	4701
LVTTL		8	SLOW		0	2902
.

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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 Lvttl Fast

Models: 8.2i

Chapter 13: Speedprint

LVTTL

FAST

Development System Reference Guide

8.2i specifications