User's Manual

Intel® 815 Chipset: Graphics Controller PRM, Rev 1.0
R
375
Parameters for Screen Resolution/Refresh Rate: 640x480_72Hz =
Dot Clock Value 31 //31.5-MHz Dot Clock
M Value 0x0013
N Value 0x0002
P Value 0x40
CR00 0x63
CR01 0x4F
CR02 0x4F
CR03 0x87
CR04 0x52
CR05 0x97
CR06 0x06
CR07 0x0F
CR09 0x40
CR10 0xE8
CR11 0x0B
CR12 0xDF
CR13 0x50
CR15 0xDF
CR16 0x07
CR30 0x02
CR31 0x01
CR32 0x01
CR33 0x01
CR35 0x00
CR39 0x01
Watermark for 8 bpp at 100-MHz local memory speed 0x22003000
Watermark for 16 bpp at 100-MHz local memory speed 0x22005000
Watermark for 24 bpp at 100-MHz local memory speed 0x22007000
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