User's Manual

Intel® 815 Chipset: Graphics Controller PRM, Rev 1.0
R
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Parameters for Screen Resolution/Refresh Rate: 640x480_60Hz =
Dot Clock Value 25 //25.175-MHz Dot Clock
M Value 0x0013
N Value 0x0003
P Value 0x40
CR00 0x5F
CR01 0x4F
CR02 0x50
CR03 0x82
CR04 0x51
CR05 0x9D
CR06 0x0B
CR07 0x10
CR09 0x40
CR10 0xE9
CR11 0x0B
CR12 0xDF
CR13 0x50
CR15 0xE7
CR16 0x04
CR30 0x02
CR31 0x01
CR32 0x01
CR33 0x01
CR35 0x00
CR39 0x01
Watermark for 8 bpp at 100-MHz local memory speed 0x22002000
Watermark for 16 bpp at 100-MHz local memory speed 0x22004000
Watermark for 24 bpp at 100-MHz local memory speed 0x22006000
Watermark for 8 bpp at 133-MHz local memory speed 0x22008000
Watermark for 16 bpp at 133-MHz local memory speed 0x22008000
Watermark for 24 bpp at 133-MHz local memory speed 0x22108000
MSR Mask 0xC0