Intel 815 Manuel D’Utilisation
Intel® 815 Chipset: Graphics Controller PRM, Rev 1.0
R
136
9.6.33. CR35
Extended Horizontal Total Time Register
I/O (and Memory Offset) Address: 3B5h/3D5h (index=35h)
Default: 00h
Attributes: Read/Write
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
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]).