EP80579 Datasheet, PDF (185/1916 Pages) Intel Corporation – Intel® EP80579 Integrated Processor Product Line

Intel^® EP80579 Integrated Processor
Table 7-1.
Definition of the Views Used in Register Description Tables
View Type
Describes
Registers in
Name
Type-Specific Fields
Description
Name of the window and index registers that expose
the indirect register(s).
Win:Idx
For example, W:I of “FOO:BAR” indicates that
accesses to FOO indirectly access the register that is
located at the index (i.e., offset) in BAR.
Indirect location
IA I
accessed via
index/window
register pair
Offset Start
Starting offset to put in the index register to access
the indirect register. The index is in bytes unless the
field contains “(2B)”, “(4B)”, and “(8B)” to indicate a
single-, double-, or quad-word offset, respectively^a.
Offset End
Ending address or offset from base address field. The
offset is in bytes unless the field contains “(2B)”,
“(4B)”, and “(8B)” to indicate a single-, double-, or
quad-word offset, respectively^a.
a. In this usage, words, double words, and quad words are 16-, 32-, and 64-bits, respectively.
The register description tables adopt the convention that Table 7-2 and Table 7-3
describe for view and register name information to distinguish the three scenarios
mentioned above (single physical register, multiple physical registers in the same
device, and multiple physical registers in different devices). Table 7-2 describes how to
interpret the combination of register views and name. This table elides the type-specific
fields and simply lists the types of views for brevity.
Table 7-2. View Convention to Describe Single Versus Multiple Physical Registers
Scenario
Register
Name
Single
FOO
Example Views from
Register Table
PCI
PCI
IA F
IA F
Interpretation
This example shows a single physical register
FOO. FOO materializes in two different PCI
devices and at two different “fixed” memory
locations that the PCI and IA M views describe.
August 2009
Order Number: 320066-003US
Intel^® EP80579 Integrated Processor Product Line Datasheet
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