Intel 925 - Pentium D 925 3.0GHz 800MHz 4MB-Cache Socket 775 CPU User Manual

System Address Map
R
164 Intel
®
82925X/82925XE MCH Datasheet
Figure 9-4. PCI Memory Address Range
High BIOS
E000_0000h
PCI_Address_Ranges_G-P-only
DMI Interface
(subtractively decode)
FSB Interrupts
DMI Interface
(subtractively decode)
Local (processor)
APIC
I/O APIC
DMI Interface
(subtractively decode)
PCI Express
Configuration Space
DMI Interface
(subtractively decode)
F000_0000h
FEC0_0000h
FEC8_0000h
FED0_0000h
FEE0_0000h
FEF0_0000h
FFE0_0000h
FFFF_FFFFh 4 GB
4 GB – 2 MB
4 GB – 17 MB
4 GB – 18 MB
4 GB – 19 MB
4 GB – 20 MB
4 GB – 256 MB
4 GB – 512 MB
TOLUD
Optional HSEG
FEDA_0000h to
FEDB_FFFFh
Possible address range
(Not guaranteed)
Programmable windows,
graphics ranges,
PCI Express* Port
could be here
9.3.1 APIC Configuration Space (FEC0_0000h–FECF_FFFFh)
This range is reserved for APIC configuration space. The I/O APIC(s) usually reside in the ICH6
portion of the chipset, but may also exist as stand-alone components.
The IOAPIC spaces are used to communicate with IOAPIC interrupt controllers that may be
populated in the system. Since it is difficult to relocate an interrupt controller using plug-and-play
software, fixed address decode regions have been allocated for them. Processor accesses to the
default IOAPIC region (FEC0_0000h to FEC7_FFFFh) are always forwarded to DMI.

Intel 925 - Pentium D 925 3.0GHz 800MHz 4MB-Cache Socket 775 CPU Specifications

General

Brand	Intel
Model	925 - Pentium D 925 3.0GHz 800MHz 4MB-Cache Socket 775 CPU
Category	Computer Hardware
Language	English