Xilinx UG078 manual Online Document, Preface About This Guide, Meaning or Use Example

Preface: About This Guide

R

Convention		Meaning or Use	Example
		Variables in a syntax statement
		for which you must supply	ngdbuild design_name
		values
			See the Development System
Italic font		References to other manuals	Reference Guide for more
			information.
			If a wire is drawn so that it
		Emphasis in text	overlaps the pin of a symbol, the
			two nets are not connected.
		An optional entry or parameter.
Square brackets	[ ]	However, in bus specifications,	ngdbuild [option_name]
		such as bus[7:0], they are	design_name
		required.
Braces { }		A list of items from which you	lowpwr ={onoff}
		must choose one or more
Vertical bar		Separates items in a list of	lowpwr ={onoff}
		choices
Vertical ellipsis			IOB #1: Name = QOUT’
			IOB #2: Name = CLKIN’
.		Repetitive material that has
			.
.		been omitted
			.
.
			.
Horizontal ellipsis . . .		Repetitive material that has	allow block block_name
		been omitted	loc1 loc2 ... locn;

Online Document

The following conventions are used in this document:

Convention	Meaning or Use	Example
		See the section “Additional
Blue text	Cross-reference link to a location	Resources” for details.
	in the current document	Refer to “Title Formats” in
		Chapter 1 for details.
Red text	Cross-reference link to a location	See Figure 2-5in the Virtex-II
	in another document	Handbook.
Blue, underlined text	Hyperlink to a website (URL)	Go to http://www.xilinx.com
		for the latest speed files.

6	www.xilinx.com	Virtex-4 LX/SX Prototype Platform
		UG078 (v1.2) May 24, 2006