Intel CM8063701219000 Ficha Técnica descarregar pdf (Página 29)

100

101

Datasheet, Volume 2 29

Processor Configuration Registers

Case 1 – Less than 4 GB of Physical Memory (no remap)

• Populated Physical Memory = 2 GB

• Address Space allocated to memory mapped IO = 1 GB

• Remapped Physical Memory = 0 GB

• TOM – 00_7FF0_0000h (2 GB)

• ME base – 00_7FF0_0000h (1 MB)

• ME Mask – 00_7FF0_0000h

• TOUUD – 00_0000_0000h (Disable - Avoid access above 4 GB)

• TOLUD – 00_7FE0_0000h (2 GB minus 1 MB)

• REMAPBASE – 7F_FFFF_0000h (default)

• REMAPLIMIT – 00_0000_0000h (0 GB boundary, default)

Figure 2-5. Case 1 – Less than 4 GB of Physical Memory (no remap)

OS VISIBLE

< 4 GB

GFX Stolen

ME-UMA

Wasted

(Only if 4 GB

minus PCI

MMIO space is

greater than

4 GB minus ME

stolen base)

TSEG

“LOW

DRAM”

PCI MMIO

HOST/SYSTEM VIEW

PHYSICAL MEMORY

(DRAM CONTROLLER VIEW)

TSEG

TSEG BASE

TOM

GFX GTT Stolen BASE

ME BASE

1 MB aligned

4 GB

TOLUD BASE

1 MB aligned

TOUUD BASE

1 MB aligned

GFX Stolen BASE

1 MB aligned

GFX GTT

STOLEN

1 2 ... 24 25 26 27 28 29 30 31 32 33 34 ... 295 296

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