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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
Typ e 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
VGA_RES_CHANGE_SMI
RSVD
ISR1R_SMI
MISCIOR_SMI
DACIOR_SMI
DACIOW_SMI
ATRI OR_ SM I
ATRI OW_SM I
GFXIOR_SMI
GFXIOW_SMI
SEQIOR_SMI
SEQIOW_SMI
CRTCIOR_SMI
CRTCIOW_SMI
CRTCIO_SMI
VGA_BL_SMI
ISR0_SMI
MISC_SMI
VG_BL_SMI
313029282726252423222120191817161514131211109876543210
RSVD
VGA_RES_CHANGE_MASK
RSVD
ISR1R_MSK
MISCIOR_MSK
DACIOR_MSK
DACIOW_MSK
ATRI OR_ MS K
ATRI OW_M SK
GFXIOR_MSK
GFXIOW_MSK
SEQIOR_MSK
SEQIOW_MSK
CRTCIOR_MSK
CRTCIOW_MSK
CRTCIO_MSK
VGA_BL_MSK
ISR0_MSK
MISC_MSK
VG_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.