參數(shù)資料
型號: FW82815
英文描述: Controller Miscellaneous - Datasheet Reference
中文描述: 控制器雜項(xiàng)-數(shù)據(jù)表參考
文件頁數(shù): 120/172頁
文件大?。?/td> 795K
代理商: FW82815
82815 GMCH
R
120
Datasheet
3.8.4.
GR10
I/O (and Memory Offset) Address:
Default:
Access:
Size:
7
Address Mapping
3CFh (Index=10h)
00h
R/W
8 bits
5
4
3
2
1
0
Reserved
Paging to
display
cache
VGA
Buffer
/Memory
Map
Packed
Mode Enbl
Linear
Mapping
Page
Mapping
Bit
Description
7:5
Reserved
4
Page to Display Cache Enable.
0 = Page to VGA Buffer.
1 = Page to Display Cache.
3
VGA Buffer/Memory Map Select.
0 = VGA Buffer (default)
1 = Memory Map.
2
Packed Mode Enable.
0 = Disable (default)
1 = Enable
1
Linear Mapping (PCI).
0 = Disable (default)
1 = Enable
0
Page Mapping Enable.
This mode allows the mapping of the vga space allocated in main memory
(non local video memory) mode or all of local memory space through the A0000:AFFFF window which
is a 64 KB page.
0 = Disable (default)
1 = Enable
3.8.5.
GR11
I/O (and Memory Offset) Address:
Default :
Attributes:
Page Selector
3CFh (Index=11h)
00h
R/W
Bit
Description
7:0
Page Select.
Selects a 64 KB window within the display cache when Page Mapping is enabled to the
display cache.
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