TckPin, TdiPin, TdoPin, TmsPin

BitGen Options

Note: In modes where Cclk is an output, the pin is driven by an internal oscillator.

TckPin

Adds a pull-up, a pull-down or neither to the TCK pin, the JTAG test clock. Selecting one setting enables it and disables the others. The Pullnone setting shows there is no connection to either the pull-up or the pull-down.

Architectures:	Virtex, Virtex-E, Virtex-II, Virtex-II Pro, Virtex-4,
	Spartan-II, Spartan-IIE, Spartan-3, Spartan-3E
Settings:	Pullup, Pulldown, Pullnone
Default:	Pullup

TdiPin

Adds a pull-up, a pull-down, or neither to the TDI pin, the serial data input to all JTAG instructions and JTAG registers. Selecting one setting enables it and disables the others. The Pullnone setting shows there is no connection to either the pull-up or the pull-down.

Architectures:	Virtex, Virtex-E, Virtex-II, Virtex-II Pro, Virtex-4,
	Spartan-II, Spartan-IIE, Spartan-3, Spartan-3E
Settings:	Pullup, Pulldown, Pullnone
Default:	Pullup

TdoPin

Adds a pull-up, a pull-down, or neither to the TdoPin pin, the serial data output for all JTAG instruction and data registers. Selecting one setting enables it and disables the others. The Pullnone setting shows there is no connection to either the pull-up or the pull- down.

Architectures:	Virtex, Virtex-E, Virtex-II, Virtex-II Pro, Virtex-4,
	Spartan-II, Spartan-IIE, Spartan-3, Spartan-3E
Settings:	Pullup, Pulldown, Pullnone
Default:	Pullup

TmsPin

Adds a pull-up, pull-down, or neither to the TMS pin, the mode input signal to the TAP controller. The TAP controller provides the control logic for JTAG. Selecting one setting enables it and disables the others. The Pullnone setting shows there is no connection to either the pull-up or the pull-down

Architectures:	Virtex, Virtex-E, Virtex-II, Virtex-II Pro, Virtex-4,
	Spartan-II, Spartan-IIE, Spartan-3, Spartan-3E
Settings:	Pullup, Pulldown, Pullnone
Default:	Pullup

Development System Reference Guide

www.xilinx.com

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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.

Xilinx 8.2i manual TckPin, TdiPin, TdoPin, TmsPin

Models: 8.2i