AMD Geode LX 800@0.9W - Manual (Page 306)

306 AMD Geode™ LX Processors Data Book
Display Controller Register Descriptions 33234H
6.6.1.3 GLIU0 Device SMI MSR (GLD_MSR_SMI)
MSR Address 80002002h
Type R/W
Reset Value 00000000_00000000h
GLD_MSR_SMI Register Map
63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32
RSVD
V
G
A_RES_CHAN
G
E_SMI
RSVD
ISR1R_SMI
MISCIOR_SMI DA
C
IO
R
_
S
M
I
DAC
IOW
_
S
M
I
AT
R
IO
R
_
S
M
I
AT
R
IO
W
_
S
M
I
GFX
IO
R
_S
MI
GF
X
IO
W
_S
M
I
SEQ
IOR_SMI
SEQ
IO
W_SMI
CR
T
C
IO
R
_
S
M
I
CR
TC
IO
W_SMI
CR
TC
IO_SMI
V
G
A_
BL
_
S
M
I
ISR0_SMI MISC
_SMI
V
G
_BL_SMI
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
RSVD
V
G
A_RES_CH
ANG
E
_MASK
RSVD
ISR
1
R_MSK
MIS
C
IO
R
_
MSK
DA
C
IO
R
_
M
S
K
DA
C
IO
W
_
M
S
K
AT
R
IO
R
_
M
S
K
AT
R
IO
W
_
M
S
K
GF
XIOR_MSK
GFXIO
W
_MSK
SEQIOR_MSK SE
Q
IO
W
_
M
S
K
CR
TCIOR_MSK
CR
T
C
IO
W_
M
S
K
CR
TCIO_MSK
V
G
A_BL_MSK
IS
R
0_MSK
MISC_MSK
V
G
_BL_MSK
GLD_MSR_SMI Bit Descriptions
Bit Name Description
63:61 RSVD Reserved. Set to 0.
60 VGA_RES_
CHANGE_SMI VGA Resolution Change SMI. Reading a 1 indicates that the VGA’s output image size
has changed while scaling is enabled. The handler for this SMI should update the hori-
zontal and/or vertical scale factor(s) accordingly.
59:49 RSVD Reserved. Set to 0.
48 ISR1R_SMI Input Status Register 1 Read SMI. Reading a 1 indicates that the VGA Input Status
Register 1 has been read; writing this bit to 1 clears it.
47 MISCIOR_SMI Miscellaneous Output Register Read SMI. Reading a 1 indicates that the VGA Mis-
cellaneous Output Register has been read; writing this bit to 1 clears it.
46 DACIOR_SMI Video DAC Register Read SMI. Reading a 1 indicates that one or more of the VGA’s
Video DAC registers has been read; writing a 1 to this bit clears it.
45 DACIOW_SMI Video DAC Register Write SMI. Reading a 1 indicates that one or more of the VGA’s
Video DAC registers has been written; writing a 1 to this bit clears it.
44 ATRIOR_SMI Attribute Register Read SMI. Reading a 1 indicates that one or more of the VGA’s
Attribute registers has been read; writing a 1 to this bit clears it.
43 ATRIOW_SMI Attribute Register Write SMI. Reading a 1 indicates that one or more of the VGA’s
Attribute registers has been written; writing a 1 to this bit clears it.
42 GFXIOR_SMI Graphics Controller Register Read SMI. Reading a 1 indicates that one or more of
the VGA’s Graphics Controller registers has been read; writing a 1 to this bit clears it.
41 GFXIOW_SMI Graphics Controller Register Write SMI. Reading a 1 indicates that one or more of
the VGA’s Graphics Controller registers has been written; writing a 1 to this bit clears it.