Manual Terminology - Motorola MVME2600 Series Reference Manual

Board Description and Memory Maps
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Manual Terminology

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Programmable registers in the MVME2600/2700 series that reside in
ASICs are covered in the chapters on those ASICs. Chapter 2 covers the
Raven chip, Chapter 3 covers the Falcon chip set, Chapter 4 covers the
Universe chip, and Chapter 5 covers certain programming features, such
as interrupts and exceptions. Appendix A lists all related documentation.
Throughout this manual, a convention is used which precedes data and
address parameters by a character identifying the numeric format as
follows:
$ dollar specifies a hexadecimal character
% percent specifies a binary number
& ampersand specifies a decimal number
For example, "12" is the decimal number twelve, and "$12" is the decimal
number eighteen.
Unless otherwise specified, all address references are in hexadecimal.
An asterisk (*) following the signal name for signals which are level
significant denotes that the signal is true or valid when the signal is low.
An asterisk (*) following the signal name for signals which are edge
significant denotes that the actions initiated by that signal occur on high to
low transition.
Note In some places in this document, an underscore (_) following
the signal name is used to indicate an active low signal.
In this manual, assertion and negation are used to specify forcing a signal
to a particular state. In particular, assertion and assert refer to a signal that
is active or true; negation and negate indicate a signal that is inactive or
false. These terms are used independently of the voltage level (high or low)
that they represent.
Data and address sizes for MPC60x chips are defined as follows: