AU80610004653AAS LBMG Intel, AU80610004653AAS LBMG Datasheet - Page 15

• Manufacturer Part Number: AU80610004653AAS LBMG
• Description: MPU, ATOM PROCESSOR, N450, FC-BGA8
• Manufacturer: Intel
• Series: ATOM - N400r

Specifications of AU80610004653AAS LBMG

• Core Size: 64bit
• Cpu Speed: 1.66GHz
• Digital Ic Case Style: BGA
• No. Of Pins: 559
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Processor Configuration Registers
1.2.1.1
1.2.1.2
Datasheet
Figure 1-2. DOS Legacy Address Range
DOS Range (0h – 9_FFFFh)
The DOS area is 640 KB (0000_0000h – 0009_FFFFh) in size and is always mapped to
the main memory controlled by the Integrated Memory Controller (IMC).
Legacy Video Area (A_0000h-B_FFFFh)
The legacy 128-KB VGA memory range, frame buffer, (000A_0000h – 000B_FFFFh) can
be mapped to IGD (Device 2), and/or to the DMI. The appropriate mapping depends on
which devices are enabled and the programming of the VGA steering bits. Based on the
VGA steering bits, priority for VGA mapping is constant. The IMC always decodes
internally mapped devices first. Internal to the IMC, decode precedence is always given
to IGD. The IMC always positively decodes internally mapped devices, namely the IGD
and PCI Express. Subsequent decoding of regions mapped to PCI Express or the DMI
depends on the Legacy VGA configuration bits (VGA Enable and MDAP). This region is
also the default for SMM space.
000D_FFFFh
0000_0000h
000E_FFFFh
000B_FFFFh
000F_FFFFh
0009_FFFFh
000C_0000h
000E_0000h
000A_0000h
000F_0000h
Extended System BIOS (Lower)
System BIOS (Upper)
Legacy Video Area
128KB (16KBx8)
Expansion Area
64KB (16KBx4)
(SMM Memory)
DOS Area
128KB
64KB
1MB
960KB
896KB
768KB
640KB
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