R
Conventions
Convention
Meaning or Use
Variables in a syntax statement
for which you must supply
Example
ngdbuild design_name
values
See the Development System
Italic font
References to other manuals
Emphasis in text
Reference Guide for more
information.
If a wire is drawn so that it
overlaps the pin of a symbol, the
two nets are not connected.
An optional entry or parameter.
Square brackets
[ ]
However, in bus specifications,
such as bus[7:0] , they are
ngdbuild [ option_name ]
design_name
required.
Braces
{ }
A list of items from which you
must choose one or more
lowpwr = { on | off }
Vertical bar
|
Separates items in a list of
choices
lowpwr = { on | off }
Vertical ellipsis
.
.
.
Horizontal ellipsis . . .
Repetitive material that has
been omitted
Repetitive material that has
been omitted
IOB #1: Name = QOUT’
IOB #2: Name = CLKIN’
.
.
.
allow block block_name loc1
loc2 ... locn;
Online Document
The following conventions are used in this document:
Convention
Blue text
Red text
Blue, underlined text
FMC-Video Daughter Board
UG458 (v1.1) February 8, 2008
Meaning or Use
Cross-reference link to a location
in the current document
Cross-reference link to a location
in another document
Hyperlink to a website (URL)
Example
See the section “Additional
Resources” for details.
Refer to “Title Formats” in
Chapter 1 for details.
See Figure 2-5 in the Virtex-II
Platform FPGA User Guide.
Go to http://www.xilinx.com
for the latest speed files.
11
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