Product specifications

ProSavageDDR P4M266 – VT8751 P4 DDR SMA North Bridge
Revision 1.1, July 19, 2002 -44- Device 0 Register Descriptions
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Technologies, Inc.
V-Link Control
Device0OffsetB4–V-LinkNBCompensationCtrl(00h)RW
7-6 V-Link Autocomp Output Value...... always reads 0
5 Pullup Compensation Selection
0 Auto Comp (use values in bits 7-6)........default
1 Manual Comp (use values in bits 3-2)
4 Pulldown Compensation Selection
0 Auto Comp (use values in bits 7-6)........default
1 Manual Comp (use values in bits 1-0)
3-2 Pullup Compensation Manual Setting ......... def = 0
1-0 Pulldown Compensation Manual Setting .... def = 0
Device 0 Offset B5 – V-Link NB Drive Control (00h)....RW
7-6 NB V-Link Strobe Pullup Manual Setting
5-4 NB V-Link Strobe Pulldown Manual Setting
3-1 Reserved ........................................ always reads 0
0 NB V-Link Slew Rate Control
0 Disable ...................................................default
1 Enable
Device0OffsetB8–V-LinkSBCompensationCtrl(00h)RW
7-6 V-Link Autocomp Output Value ......always reads 0
5 Pullup Compensation Selection
0 Auto Comp (use values in bits 7-6)....... default
1 Manual Comp (use values in bits 3-2)
4 Pulldown Compensation Selection
0 Auto Comp (use values in bits 7-6)....... default
1 Manual Comp (use values in bits 1-0)
3-2 Pullup Compensation Manual Setting.......... def = 0
1-0 Pulldown Compensation Manual Setting.....def = 0
Device 0 Offset B9 – V-Link SB Drive Control (00h).... RW
7-6 SB V-Link Strobe Pullup Manual Setting
5-4 SB V-Link Strobe Pulldown Manual Setting
3-1 Reserved ........................................always reads 0
0 SB V-Link Slew Rate Control
0 Disable................................................... default
1 Enable