Suggested reading, Conventions – Motorola MC68VZ328 User Manual
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About This Book
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Suggested Reading
The following documents are required for a complete description of the MC68VZ328 and are necessary to
design properly with the part. Especially for those not familiar with the 68000 CPU, the following
documents will be helpful when used in conjunction with this manual.
M68000 Family Programmer’s Reference Manual (order number M68000PM/AD)
M68000 User’s Manual (order number M68000UM/D)
M68000 User’s Manual Addendum (order number M68000UMAD/AD)
MC68EZ328 User’s Manual (order number MC68EZ328UM/D)
MC68EZ328 User’s Manual Addendum (order number MC68EZ328UMA/D)
MC68VZ328 Product Brief (order number MC68VZ328P/D)
The manuals may be found at the Motorola Web site at http://www.Motorola.com/DragonBall. These
documents may be downloaded from the Web site, or a printed version may be obtained from a local sales
office. The Web site also may have useful application notes.
Conventions
This user’s manual uses the following conventions:
•
OVERBAR is used to indicate a signal that is active when pulled low: for example, RESET.
•
Logic level one is a voltage that corresponds to Boolean true (1) state.
•
Logic level zero is a voltage that corresponds to Boolean false (0) state.
•
To set a bit or bits means to establish logic level one.
•
To clear a bit or bits means to establish logic level zero.
•
A signal is an electronic construct whose state conveys or changes in state convey information.
•
A pin is an external physical connection. The same pin can be used to connect a number of signals.
•
Asserted means that a discrete signal is in active logic state.
— Active low signals change from logic level one to logic level zero.
— Active high signals change from logic level zero to logic level one.
•
Negated means that an asserted discrete signal changes logic state.
— Active low signals change from logic level zero to logic level one.
— Active high signals change from logic level one to logic level zero.
•
LSB means least significant bit or bits, and MSB means most significant bit or bits. References to
low and high bytes or words are spelled out.
•
Numbers preceded by a percent sign (%) are binary. Numbers preceded by a dollar sign ($) or 0x
are hexadecimal.