参数资料
型号: RG82845MZ
英文描述: Controller Miscellaneous - Datasheet Reference
中文描述: 控制器杂项-数据表参考
文件页数: 132/157页
文件大小: 1407K
代理商: RG82845MZ
Intel
82845MP/82845MZ Chipset-Mobile (MCH-M)
76
Datasheet
250687-002
R
3.7.30.
ATTBASE – Aperture Translation Table Base Register – Device
#0
Address Offset:
B8-BBh
Default Value:
0000_0000h
Access:
Read/Write, Read Only
Size:
32 bits
This register provides the starting address of the Graphics Aperture Translation Table Base located in the
main DRAM. This value is used by the MCH-M Graphics Aperture address translation logic (including
the GTLB logic) to obtain the appropriate address translation entry required during the translation of the
aperture address into a corresponding physical DRAM address. The ATTBASE register may be
dynamically changed.
Note: The address provided via ATTBASE is 4-KB aligned.
Bit
Description
31:12
Aperture Translation Table Base (TTABLE): This field contains a pointer to the base of the
translation table used to map memory space addresses in the aperture range to addresses in main
memory.
NOTE: It should be modified only when the GTLB has been disabled.
11:0
Reserved
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