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10 www.xilinx.com H.264 Motion Estimation Engine
UG453 (v1.1) April 23, 2008
Preface: About This Guide
R
Typographical
The following typographical conventions are used in this document:
Online Document
The following conventions are used in this document:
Convention Meaning or Use Example
Courier font
Messages, prompts, and
program files that the system
displays
speed grade: - 100
Courier bold
Literal commands that you enter
in a syntactical statement
ngdbuild design_name
Helvetica bold
Commands that you select from
a menu
File → Open
Keyboard shortcuts Ctrl+C
Italic font
Variables in a syntax statement
for which you must supply
values
ngdbuild design_name
References to other manuals
See the Development System
Reference Guide for more
information.
Emphasis in text
If a wire is drawn so that it
overlaps the pin of a symbol, the
two nets are not connected.
Square brackets [ ]
An optional entry or parameter.
However, in bus specifications,
such as bus[7:0], they are
required.
ngdbuild [option_name]
design_name
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
.
.
.
Repetitive material that has
been omitted
IOB #1: Name = QOUT’
IOB #2: Name = CLKIN’
.
.
.
Horizontal ellipsis . . .
Repetitive material that has
been omitted
allow block block_name loc1
loc2 ... locn;
Convention Meaning or Use Example
Blue text
Cross-reference link to a location
in the current document
See the section “Additional
Resources” for details.
Refer to “Title Formats” in
Chapter 1 for details.