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Terminology, Conventions, and Definitions Used in this Manual
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Assertion and Negation Conventions
Assertion and negation are used to specify forcing a signal to a
particular state. These terms are used independently of the voltage
level (high or low) that they represent.
Data and Address Size Definitions
Data and address sizes are defined as follows:
Big-Endian Byte Ordering
This manual assumes that the MPU on the MVME187 always
programs the CMMUs with big-endian byte ordering, as shown
below. Any attempt to use little-endian byte ordering will
immediately render the MVME187Bug debugger unusable.
Term Indicates
Assertion and assert The signal is active or true.
Negation and negate The signal is inactive or false.
Name Size Numbered SigniÞcance Called
Byte 8 bits 0 through 7
bit 0 is the
least
signiÞcant
Two-byte 16 bits 0 through 15
bit 0 is the
least
signiÞcant
half-
word
Four-byte 32 bits 0 through 31
bit 0 is the
least
signiÞcant
word
BIT BIT
31 24 23 16 15 08 07 00
ADR0 ADR1 ADR2 ADR3