AMD-761 Datasheet, PDF (58/264 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
Bit Definitions (Continued)
ECC Mode/Status (Dev0:F0:0x48)
Bit Name
Function
7–4 ECC_CS_MED
Multiple Bit Error Chip Select
These bits provide the binary encoded chip select for the first multiple-bit error detected
by the AMD-761™ system controller.
3–0 ECC_CS_SED
Single Bit Error Chip Select
These bits provide the binary encoded chip select for the first single-bit error detected
by the AMD-761 system controller.
Programming Notes
System software is responsible for decoding the binary encoded, failing chip-select information and identifying a
corresponding physical DIMM location.
Some bits in this register are not initialized at reset. BIOS must initialize all bits in this register prior to attempting
DRAM access.
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AMD-761™ System Controller Programmer’s Interface
Chapter 2