Conventions; Port And Attribute Names; Typographical - Xilinx RocketIO User Manual

Product Not Recommended for New Designs

Conventions

Conventions
This document uses the following conventions. An example illustrates each typographical
and online convention.

Port and Attribute Names

Input and output ports of the RocketIO transceiver primitives are denoted in upper-case
letters. Attributes of the RocketIO transceiver are denoted in upper-case letters with
underscores. Trailing numbers in primitive names denote the byte width of the data path.
These values are preset and not modifiable. When assumed to be the same frequency,
RXUSRCLK and TXUSRCLK are referred to as USRCLK and can be used interchangeably.
This also holds true for RXUSRCLK2, TXUSRCLK2, and USRCLK2.
Comma Definition
A comma is a "K-character" used by the transceiver to align the serial data on a
byte/half-word boundary (depending on the protocol used), so that the serial data is
correctly decoded into parallel data.

Typographical

The following typographical conventions are used in this document:
Courier font
Courier bold
Helvetica bold
Italic font
Square brackets [ ]
Braces { }
RocketIO™ Transceiver User Guide
UG024 (v3.0) February 22, 2007
Convention
Messages, prompts, and
program files that the system
displays
Literal commands that you
enter in a syntactical statement
Commands that you select
from a menu
Keyboard shortcuts
Variables in a syntax
statement for which you must
supply values
References to other manuals
Emphasis in text
An optional entry or
parameter. However, in bus
specifications, such as
bus[7:0], they are required.
A list of items from which you
must choose one or more
www.xilinx.com
Meaning or Use Example
speed grade: - 100
ngdbuild design_name
File → Open
Ctrl+C
ngdbuild design_name
See the Development System
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.
ngdbuild [option_name]
design_name
lowpwr ={on|off}
R
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