EP80579 Datasheet, PDF (190/1916 Pages) Intel Corporation – Intel® EP80579 Integrated Processor Product Line

Intel^® EP80579 Integrated Processor
Warning:
7.1.4
There are three special values that can be used in place of numbers to indicate cases
where the value of a register or field is not fixed at design time and depends on other
parameters:
• Fuse: The setting of one or more fuses determines the value of the register or
field.
• Strap: The setting of a strap pin determines the value of the register or field.
• Variable: The setting of other on-die state determines the value of the register or
field.
In these cases, the description of the register or field that is not fixed should contain
additional information that describes how the EP80579 arrives at the value.
Address locations that are not listed are considered reserved register locations. Reads
to reserved registers may return non-zero values. Writes to reserved locations may
cause system failure.
“Sticky” Register Fields
For each field in a register, the description tables include an indication of whether or not
the bits that make up the field are “sticky” or not. Sticky bits in registers will retain
their value across a hard reset. Resetting field in a register that is designated as
“sticky” to its default/reset value requires a cold reset. Unless explicitly noted, all
register fields are assumed to not be sticky.
7.2
IA-32 core Registers
The IA-32 core registers are described in the related documentation for the Intel®
Pentium® M Processor .
Intel^® EP80579 Integrated Processor Product Line Datasheet
190
August 2009
Order Number: 320066-003US