Справочник Пользователя для AMD LX 800@0.9W
AMD Geode™ LX Processors Data Book
373
Display Controller Register Descriptions
33234H
6.6.19.30 Attribute Index State
6.6.20
VGA Graphics Controller Registers
The graphics controller registers are accessed by writing an index value to the Graphics Controller Index register (Index
Address 3CEh) and reading or writing the register using the Graphics Controller Data register (Data Address 3CFh).
Address 3CEh) and reading or writing the register using the Graphics Controller Data register (Data Address 3CFh).
6.6.20.1 VGA Graphics Controller Index
Index
26h
Type
RO
Reset Value
xxh
Attribute Index State Register Bit Descriptions
Bit
Name
Description
7:6
RSVD
Reserved.
5:0
ATT_IN_VA
Attribute Index Value. This read only value indicates the value of Attribute Index regis-
ter bits [5:0] (Index 3C0h).
ter bits [5:0] (Index 3C0h).
Table 6-56. Graphics Controller Registers Summary
Index
Type
Register
Reset Value
Reference
--
R/W
xxh
--
R/W
xxh
00h
R/W
xxh
01h
R/W
xxh
02h
R/W
xxh
03h
R/W
xxh
04h
R/W
xxh
05h
R/W
xxh
06h
R/W
xxh
07h
R/W
xxh
08h
R/W
xxh
Index Address
3CEh
Type
R/W
Reset Value
xxh
VGA Graphics Controller Index Register Bit Descriptions
Bit
Name
Description
7:4
RSVD
Reserved.
3:0
INDEX
Index.