14 www.xilinx.com Embedded Tri-Mode Ethernet MAC User Guide
UG074 (v2.2) February 22, 2010
Preface: About This Guide
R
Conventions
This document uses the following conventions. An example illustrates each convention.
Typographical
The typographical conventions in the following table are used in this document:
Online Document
The cross-reference and linking conventions shown in the following table are used in this
document:
Convention Meaning or Use Example
Italic font
References to other manuals
See the Virtex-4 Data Sheet 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.
Byte/bit
“B” means “byte,”and
“b” means “bit”
8B word
64b word
EXCEPTIONS:
8B/10B = 8 bit/10 bit
64B/66B = 64 bit/66 bit
Hex and binary
notation
Hex and binary numbers are in a
monospace typeface.
The 0x prefix is often used to
designate a hex string.
0 or 1 [binary]
11010011 [binary]
0x0123456789ABCDEF
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.
Red text
Cross-reference link to a location
in another document
See the Virtex-4 User Guide.
Blue, underlined text
Hyperlink to a website (URL)
Go to http://www.xilinx.com
for the latest speed files.