Xilinx 3.2 manual Online Document, Preface About This Guide Convention Meaning or Use Example

Preface: About This Guide

Convention	Meaning or Use	Example
	Variables in a syntax statement
	for which you must supply	ngdbuild design_name
	values
Italic font	References to other manuals	See the User Guide for details.
		If a wire is drawn so that it
	Emphasis in text	overlaps the pin of a symbol, the
		two nets are not connected.
Dark Shading	Items that are not supported or	This feature is not supported
	reserved
	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
Angle brackets < >	User-defined variable or in code	<directory name>
	samples
Vertical ellipsis		IOB #1: Name = QOUT’
		IOB #2: Name = CLKIN’
.	Repetitive material that has
		.
.	been omitted
		.
.
		.
Horizontal ellipsis . . .	Omitted repetitive material	allow block block_name loc1
		loc2 ... locn;
	The prefix ‘0x’ or the suffix ‘h’	A read of address 0x00112975
Notations	indicate hexadecimal notation	returned 45524943h.
	An ‘_n’ means the signal is	usr_teof_n is active low.
	active low

Online Document

The following linking conventions are used in this document:

Convention	Meaning or Use	Example
	Cross-reference link to a	See the section “Guide
		Contents” for details.
Blue text	location in the current
		See “Title Formats” in Chapter 1
	document
		for details.
Blue, underlined text	Hyperlink to a website (URL)	Go to www.xilinx.com for the
		latest speed files.

8	www.xilinx.com	CAN Getting Started Guide
		UG186 April 19, 2010