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

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