
I/O and Memory Address Maps
5-3
`efmp69030 Databook
Revision 1.3 11/24/99
3C1
400781 & C00781
Attribute Controller Data Port
Alternate Attribute Controller Data
Port
3C2
400784 & C00784
Input Status Register 0 (ST00)
Misc. Output Register (MSR)
3C3
3C4
400788 & C00788
Sequencer Index
3C5
400789 & C00789
Sequencer Data Port
3C6
40078C & C0078C
Color Palette Mask
3C7
40078D & C0078D
Color Palette State
Color Palette Read Mode Index
3C8
400790 & C00790
Color Palette Write Mode Index
3C9
400791 & C00791
Color Palette Data Port
3CA
400794 & C00794
Feature Control Register (FCR)
3CB
400795 & C00795
Memory Space Shadowing Register (MSS)
3CC
400798 & C00798
Misc. Output Register (MSR)
3CD
400799 & C00799
I/O Space Shadowing Register (IOSS)
3CE
40079C & C0079C
Graphics Controller Index
3CF
40079D & C0079D
Graphics Controller Data Port
3D0
4007A0 & C007A0
Flat Panel Extensions Index
3D1
4007A1 & C007A1
Flat Panel Extensions Data Port
3D2
4007A4 & C007A4
Multimedia Extensions Index
3D3
4007A5 & C007A5
Multimedia Extensions Data Port
3D4
4007A8 & C007A8
CRTC Index (CGA Emulation)
3D5
4007A9 & C007A9
CRTC Data Port (CGA Emulation)
3D6
4007AC & C007AC
Configuration Extensions Index
3D7
4007AD & C007AD
Configuration Extensions Data Port
3D8-3D9
3DA
4007B4 & C007B4
Input Status Register 1 (ST01)
(CGA Emulation)
Feature Control Register (FCR)
(CGA Emulation)
3DB-3DF
Table 5-2:
I/O and Sub-Addressed Register Map (Continued)