参数资料
型号: SIS600
厂商: SILICON INTEGRATED SYSTEMS CORP
元件分类: 外设及接口
英文描述: MULTIFUNCTION PERIPHERAL, PBGA487
封装: BGA-487
文件页数: 4/144页
文件大小: 1592K
代理商: SIS600
SiS600 Pentium II PCI A.G.P. Chipset
Preliminary V1.0 Jan. 25, 1999
98
Silicon Integrated Systems Corporation
8.1.11. A.G.P. GART AND PAGE TABLE CONTROL REGISTERS
Register 90h
GART Base Address for Re-mapping
Default Value:
00000000h
Access:
Read/Write
BIT
ACCESS
DESCRIPTION
31:12
R/W
A[31:12] for GART Base Address
This register specifies the starting address of the Graphics Address Re-mapping
Table (GART) base address located in main memory, which is always 4KB
aligned.
11:0
R/W
Reserved
Register 94h
Graphic Window Control
Default Value:
00h
Access:
Read/Write
This register specifies the size of the graphic window and indicates whether the Graphic Window Base Address
Register and Re-mapping GART Base Address Register contain valid information or not.
BIT
ACCESS
DESCRIPTION
7
R/W
Reserved
6:4
R/W
Graphic Window Size
This field defines the size of the graphic window. The accessibility of GWBA
register (Register 10h) is also controlled by this field.
Bits[6:4]
Size
000
4M
001
8M
010
16M
011
32M
100
64M
101
128M
110
256M
111
Reserved
3:2
R/W
Reserved
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