Hub Datasheet

Intel

E7505 Chipset MCH Datasheet 121

3.7.31 ATTBASE1—AGP GART Pointer Register (D1:F0)

Address Offset: 78–7Bh

Default Value: 0000 0000h

Attribute: R/W, RO

Size: 32 bits

This register determines the starting address of the GART table. It must be on a 4-KB boundary,

regardless of its size. The size of the table is determined by the APSIZE1 register as shown in the

table below. Set by drivers.

Bits

Default,

Access

Description

31:12

00000h

R/W

Graphics Aperture Remapping Table Starting Address (GART). Bits 31:12

correspond to address bits 31:12.

11:0 Reserved