User's Manual
Intel® 815 Chipset: Graphics Controller PRM, Rev 1.0
R
5
9.4.5.
AR12Memory Plane Enable Register .................................................... 104
9.4.6. AR13Horizontal Pixel Panning Register ................................................ 105
9.4.7. AR14Color Select Register.................................................................... 106
9.5. VGA Color Palette Registers....................................................................................... 106
9.5.1. DACMASKPixel Data Mask Register..................................................... 107
9.5.2. DACSTATEDAC State Register ............................................................ 108
9.5.3. DACRXPalette Read Index Register ..................................................... 108
9.5.4. DACWXPalette Write Index Register .................................................... 108
9.5.5. DACDATAPalette Data Register ........................................................... 109
9.6. CRT Controller Register .............................................................................................. 109
9.6.1. CRXCRT Controller Index Register....................................................... 110
9.6.2. CR00Horizontal Total Register .............................................................. 111
9.6.3. CR01Horizontal Display Enable End Register....................................... 111
9.6.4. CR02Horizontal Blanking Start Register................................................ 111
9.6.5. CR03Horizontal Blanking End Register................................................. 112
9.6.6. CR04Horizontal Sync Start Register...................................................... 112
9.6.7. CR05Horizontal Sync End Register....................................................... 113
9.6.8. CR06Vertical Total Register .................................................................. 114
9.6.9. CR07Overflow Register ......................................................................... 114
9.6.10. CR08Preset Row Scan Register ........................................................... 117
9.6.11. CR09Maximum Scan Line Register ...................................................... 118
9.6.12. CR0AText Cursor Start Register ........................................................... 119
9.6.13. CR0BText Cursor End Register ............................................................ 119
9.6.14. CR0CStart Address High Register ........................................................ 120
9.6.15. CR0DStart Address Low Register ......................................................... 121
9.6.16. CR0EText Cursor Location High Register............................................. 121
9.6.17. CR0FText Cursor Location Low Register.............................................. 122
9.6.18. CR10Vertical Sync Start Register.......................................................... 122
9.6.19. CR11Vertical Sync End Register........................................................... 123
9.6.20. CR12Vertical Display Enable End Register........................................... 124
9.6.21. CR13Offset Register ............................................................................. 124
9.6.22. CR14Underline Location Register ......................................................... 125
9.6.23. CR15Vertical Blanking Start Register.................................................... 126
9.6.24. CR16Vertical Blanking End Register ..................................................... 126
9.6.25. CR17CRT Mode Control........................................................................ 127
9.6.26. CR18Line Compare Register ................................................................ 131
9.6.27. CR22Memory Read Latch Data Register .............................................. 131
9.6.28. CR24 Test Register for Toggle State of Attribute Controller Register... 132
9.6.29. CR30Extended Vertical Total Register .................................................. 132
9.6.30. CR31Extended Vertical Display End Register....................................... 133
9.6.31. CR32Extended Vertical Sync Start Register ......................................... 134
9.6.32. CR33Extended Vertical Blanking Start Register.................................... 135
9.6.33. CR35 Extended Horizontal Total Time Register.................................... 136
9.6.34. CR39Extended Horizontal Blank Time Register.................................... 136
9.6.35. CR40Extended Start Address Register ................................................. 137
9.6.36. CR41Extended Offset Register ............................................................. 138
9.6.37. CR42Extended Start Address High Register......................................... 138
9.6.38. CR70Interlace Control Register............................................................. 139
9.6.39. CR80I/O Control .................................................................................... 139
9.6.40. CR81Reserved ...................................................................................... 140
9.6.41. CR82Blink Rate Control......................................................................... 140










