ALXD800EEXJ2VD AMD (ADVANCED MICRO DEVICES), ALXD800EEXJ2VD Datasheet - Page 305

• Manufacturer Part Number: ALXD800EEXJ2VD
• Manufacturer: AMD (ADVANCED MICRO DEVICES)

Specifications of ALXD800EEXJ2VD

• Operating Temperature (min): 0C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Compliant

Display Controller Register Descriptions
AMD Geode™ LX Processors Data Book
31:29
27:17
Bit
40
39
38
37
36
35
34
33
32
28
16
15
14
13
12
11
10
Name
SEQIOR_SMI
SEQIOW_SMI
CRTCIOR_SMI
CRTCIOW_SMI
CRTCIO_SMI
VGA_BL_SMI
ISR0_SMI
MISC_SMI
VG_BL_SMI
RSVD
VGA_RES_
CHANGE_MASK
RSVD
ISR1R_MSK
MSICIOR_MSK
DACIOR_MSK
DACIOW_MSK
ATRIOR_MSK
ATRIOW_MSK
GFXIOR_MSK
Description
Sequencer Register Read SMI. Reading a 1 indicates that one or more of the VGA’s
Sequencer registers has been read; writing a 1 to this bit clears it.
Sequencer Register Write SMI. Reading a 1 indicates that one or more of the VGA’s
Sequencer registers has been written; writing a 1 to this bit clears it.
CRTC Register Read SMI. Reading a 1 indicates that one or more of the VGA’s CRTC
registers has been read; writing a 1 to this bit clears it.
CRTC Register Write SMI. Reading a 1 indicates that one or more of the VGA’s CRTC
registers has been written; writing a 1 to this bit clears it.
CRTC Invalid Register I/O SMI. Reading a 1 indicates that this SMI has been gener-
ated; writing a 1 to this bit clears it; writing 0 has no effect.
VGA Vertical Blank SMI. Reading a 1 indicates that the ASMI corresponding to VGA
Vertical Blank has been triggered. Writing a 1 to this bit clears it (and deactivates the
ASMI signal); writing a 0 to this bit has no effect.
Input Status Register 0 SMI. Reading a 1 indicates that a synchronous SMI was gen-
erated because of a read to VGA Input Status Register 0. Writing a 1 to this bit clears it;
writing a 0 has no effect.
Miscellaneous Output Register SMI. Reading a 1 indicates that a synchronous SMI
was generated due to a write to the Miscellaneous Output Register. Writing a 1 to this
bit clears it; writing a 0 has no effect.
DC Vertical Blank SMI. Reading a 1 indicates that the ASMI corresponding to DC Ver-
tical Blank has been triggered. Writing a 1 to this bit clears it (and deactivates the ASMI
signal); writing a 0 has no effect.
Reserved. Set to 0.
VGA Resolution Change SMI Mask. When set to 1, disables generation of an asyn-
chronous SMI when all of the following conditions occur at once:
- The VGA timing engine is enabled.
- Scaling is enabled.
- The horizontal or vertical resolution of the image produced by the VGA timing engine
changes.
Reserved. Set to 0.
Input Status Register 1 Read SMI Mask. When set to 1, disables generation of the
SMI that indicates that VGA Input Status Register 1 has been read.
Miscellaneous Output Register Read SMI. When set to 1, disables generation of the
SMI that indicates that the VGA Miscellaneous Output Register has been read.
Video DAC Register Read SMI. When set to 1, disables generation of the SMI that
indicates that one or more of the VGA’s Video DAC registers has been read.
Video DAC Register Write SMI. When set to 1, disables generation of the SMI that
indicates that one or more of the VGA’s Video DAC registers has been written.
Attribute Register Read SMI. When set to 1, disables generation of the SMI that indi-
cates that one or more of the VGA’s Attribute registers has been read.
Attribute Register Write SMI. When set to 1, disables generation of the SMI that indi-
cates that one or more of the VGA’s Attribute registers has been written.
Graphics Controller Register Read SMI. When set to 1, disables generation of the
SMI that indicates that one or more of the VGA’s Graphics Controller registers has
been read.
GLD_MSR_SMI Bit Descriptions (Continued)
33234C
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