AMD-761 Datasheet, PDF (248/264 Pages) Advanced Micro Devices – AMD-761-TM System Controller Software/BIOS Design Guide

Preliminary Information
AMD-761™ System Controller Software/BIOS Design Guide
24081D—February 2002
7.1.3
PCI Bus 0, Device 0, Function 1 Registers
The Device 0, Function 1 registers are used for the purpose of
controlling the DDR SDRAM interface drive strengths, and
calibration of the Programmable Delay Lines (PDLs).
All Function 1 register bits are defaulted to an unknown value
as required for the AMD-761 system controller to support the
Advanced Configuration and Power Interface (ACPI) S3
(Suspend to RAM) state.
For proper operation, it is absolutely necessary that BIOS
initialize all Function 1 register bits.
Please obtain the AMD-761™ System Controller Revision Guide,
order# 23613, for the most current information for each silicon
revision.
236
Recommended BIOS Settings
Chapter 7