User's Manual

Intel® 815 Chipset: Graphics Controller PRM, Rev 1.0
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9.6.33. CR35

 Extended Horizontal Total Time Register
I/O (and Memory Offset) Address: 3B5h/3D5h (index=35h)
Default: 00h
Attributes: Read/Write
7 1 0
Reserved (0000000) Ext Horiz
Total
Bit Description
7:1 Reserved. When this register is written to, these bits should be set to 0.
0 Extended Horizontal Total (MSB that extends CR00).
9.6.34. CR39

Extended Horizontal Blank Time Register
I/O (and Memory Offset) Address: 3B5h/3D5h (index=39h)
Default: 00h
Attributes: Read/Write
7 1 0
Reserved (0000000) Ext Horiz
Total
Bit Description
7:1 Reserved.
0 Extended Horizontal Total (MSB that extends CR5[7], CR3[4:0]).