Справочник Пользователя для AMD LX 900@1.5W
374
AMD Geode™ LX Processors Data Book
Display Controller Register Descriptions
33234H
6.6.20.2 VGA Graphics Controller Data
6.6.20.3 VGA Set/Reset
Bits [3:0] allow bits in their respective maps to be set or reset through write modes 0 or 3. See Section 6.5.5.3 "Write
Modes" on page 290 for more information.
Modes" on page 290 for more information.
6.6.20.4 VGA Enable Set/Reset
Bits [3:0] enable the Set/Reset function for their respective maps in write mode 0. See Section 6.5.5.3 "Write Modes" on
page 290 for more information.
page 290 for more information.
Data Address
3CFh
Type
R/W
Reset Value
xxh
VGA Graphics Controller Data Register Bit Descriptions
Bit
Name
Description
7:4
RSVD
Reserved.
3:0
DATA
Data.
Index
00h
Type
R/W
Reset Value
xxh
VGA Set/Reset Register Bits Bit Descriptions
Bit
Name
Description
7:4
RSVD
Reserved.
3
SR_MP3
Set/Reset Map 3.
2
SR_MP2
Set/Reset Map 2.
1
SR_MP1
Set/Reset Map 1.
0
SR_MP0
Set/Reset Map 0
Index
01h
Type
R/W
Reset Value
xxh
VGA Enable Set/Reset Register Bit Descriptions
Bit
Name
Description
7:4
RSVD
Reserved.
3
EN_SR_MP3
Enable Set/Reset Map 3.
2
EN_SR_MP2
Enable Set/Reset Map 2.
1
EN_SR_MP1
Enable Set/Reset Map 1.
0
EN_SR_MP0
Enable Set/Reset Map 0.