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About This Manual
This manual describes the AlphaPC 164LX motherboard, a module for computing
TM
systems based on the Alpha
21164 microprocessor and the companion Digital
Semiconductor 21174 core logic chip. It describes the motherboard's features and
how to set its configuration jumpers. This manual helps users to install and populate
the AlphaPC 164LX motherboard with memory modules and peripheral cards.
1.1 Manual Conventions and Terminology
The following conventions are used in this manual.
Caution: Cautions indicate potential damage to equipment, software, or data.
Note: Notes provide additional information about a topic.
Numbering: All numbers are decimal or hexadecimal unless otherwise indicated. In
case of ambiguity, a subscript indicates the radix of nondecimal numbers. For
example, 19 is a decimal number, but 19
and 19A are hexadecimal numbers.
16
Extents: Extents are specified by a single number or a pair of numbers in square
brackets ([ ]) separated by a colon (:), and are inclusive. For example, bits [7:3]
specify an extent including bits 7, 6, 5, 4, and 3. Multiple bit fields are shown as
extents.
Register Figures: Register figures have bit and field position numbering starting at
the right (low-order) and increasing to the left (high-order).
Signal Names: All signal names are printed in boldface type. Signal names that
originate in an industry-standard specification, such as PCI or IDE, are printed in the
case as found in the specification (usually uppercase). Active low signals have either
a pound sign "#" appended, or a "not" overscore bar; for example, DEVSEL# and
RESET.
About This Manual
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