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Preface
xx Copyright © 2003-2007 ARM Limited. All rights reserved. ARM DUI 0224F
monospace
Denotes text that you can enter at the keyboard, such as
commands, file and program names, and source code.
monospace
Denotes a permitted abbreviation for a command or option. You
can enter the underlined text instead of the full command or option
name.
monospace italic
Denotes arguments to monospace text where the argument is to be
replaced by a specific value.
monospace
bold Denotes language keywords when used outside example code.
< and > Angle brackets enclose replaceable terms for assembler syntax
where they appear in code or code fragments. They appear in
normal font in running text. For example:
•
MRC p15, 0 <Rd>, <CRn>, <CRm>, <Opcode_2>
• The Opcode_2 value selects which register is accessed.
Timing diagrams
The figure named Key to timing diagram conventions explains the components used in
timing diagrams. Variations, when they occur, have clear labels. You must not assume
any timing information that is not explicit in the diagrams.
Shaded bus and signal areas are undefined, so the bus or signal can assume any value
within the shaded area at that time. The actual level is unimportant and does not affect
normal operation.
Key to timing diagram conventions
&ORFN
+,*+WR/2:
7UDQVLHQW
+,*+/2:WR+,*+
%XVVWDEOH
%XVWRKLJKLPSHGDQFH
%XVFKDQJH
+LJKLPSHGDQFHWRVWDEOHEXV