R
Preface: About This Guide
Conventions
Typographical
The following typographical conventions are used in this document:
Convention | Meaning or Use | Example | |
|
|
| |
| Messages, prompts, and |
| |
Courier font | program files that the system | speed grade: - 100 | |
| displays |
| |
|
|
| |
Courier bold | Literal commands you enter in | ngdbuild design_name | |
a syntactical statement | |||
|
|
| |
| Variables in a syntax | <design_name> | |
angle brackets < > | statement for which you must |
| |
| supply values |
| |
|
|
| |
| References to other manuals | See the Initiator/Target User | |
| Guide for more information. | ||
|
| ||
|
|
| |
Italic font |
| 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 |
| |
Square brackets [ ] | parameter. However, in bus | ngdbuild [option_name] | |
specifications, such as | design_name | ||
| |||
| bus[7:0], they are 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’ | |
Repetitive material that has | IOB #2: Name = CLKIN’ | ||
. | |||
. | |||
. | been omitted | ||
. | |||
. |
| ||
| . | ||
|
| ||
|
|
| |
Horizontal ellipsis . . . | Omitted repetitive material | allow block block_name | |
|
| loc1 loc2... locn; |
10 | www.xilinx.com |
|
|
| UG158 March 24, 2008 |