AMD-762 Datasheet, PDF (116/122 Pages) Advanced Micro Devices – System Controller

Preliminary Information
AMD-762™ System Controller Data Sheet
24416C—December 2001
n Addressing—Memory is addressed as a series of bytes on
eight-byte (64-bit) boundaries in which each byte can be
separately enabled.
n Abbreviations—The following notation is used for bits and
bytes:
• Kilo (K, as in 4-Kbyte page)
• Mega (M, as in 4 Mbits/sec)
• Giga (G, as in 4 Gbytes of memory space)
See Table 40 for more abbreviations.
n Little-Endian Convention—The byte with the address
xx...xx00 is in the least-significant byte position (little end).
In byte diagrams, bit positions are numbered from right to
left—the little end is on the right and the big end is on the
left. Data structure diagrams in memory show low addresses
at the bottom and high addresses at the top. When data
items are aligned, bit notation on a 64-bit data bus maps
directly to bit notation in 64-bit-wide memory. Because byte
addresses increase from right to left, strings appear in
reverse order when illustrated.
n Bit Ranges—In text, bit ranges are shown with a dash (for
example, bits 9–1). When accompanied by a signal or bus
name, the highest and lowest bit numbers are contained in
brackets and separated by a colon (for example, AD[31:0]).
n Bit Values—Bits can either be set to 1 or cleared to 0.
n Hexadecimal and Binary Numbers—Unless the context
makes interpretation clear, hexadecimal numbers are
followed by an h and binary numbers are followed by a b.
Abbreviations and Acronyms
Table 40 contains the definitions of abbreviations used in this
document.
Table 39. Abbreviations
Abbreviation
A
F
G
Gbit
Gbyte
H
Meaning
Ampere
Farad
Giga-
Gigabit
Gigabyte
Henry
104
Conventions, Abbreviations, and References