6 PEX430
Publication No. PEX430-0HH/1QD
1.2
Conventions
This manual may use the following types of notice:
WARNING
Warnings alert you to the risk of personal injury.
CAUTION
Cautions alert you to system damage or loss of data.
NOTE
Notes call attention to important features or instructions.
TIP
Tips give guidance on procedures that may be tackled in a number of ways.
LINK
Links take you to other documents or websites. The purple link color may also be used within a body of text
or paragraph to indicate a link (or hyperlink) to a different part of the same document.
All numbers are expressed in decimal, except addresses and memory or register
data, which are expressed in hexadecimal. Where confusion may occur, decimal
numbers have a “D” subscript and binary numbers have a “b” subscript. The prefix
“0x” shows a hexadecimal number, following the ‘C’ programming language
convention. Thus:
One dozen = 12
D
= 0x0C = 1100
b
The multipliers “k”, “M” and “G” have their conventional scientific and engineering
meanings of x10
3
, x10
6
and x10
9
respectively. The only exception to this is in the
description of the size of memory areas, when “K”, “M” and “G” mean x2
10
, x2
20
and
x2
30
respectively.
NOTE
When describing transfer rates, “k”, “M” and “G” mean x10
3
, x10
6
, and x10
9
- not x2
10
, x2
20
, and x2
30
.
In PowerPC terminology, multiple bit fields are numbered from 0 to n, where 0 is the
LSB and n is the MSB.
Signal names ending with a tilde (
“
~
”
) denote active low signals; all other signals are
active high.
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