AMD-761 datasheet(17/264 Pages) AMD

Part #	AMD-761

Description	AMD-761-TM System Controller Software/BIOS Design Guide

PDF	264 Pages

Scroll/Zoom	100%

Manufacturer	AMD [Advanced Micro Devices]

Direct Link	http://www.amd.com

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17 / 264 page

Chapter 1

Overview

24081D—February 2002

AMD-761™ System Controller Software/BIOS Design Guide

Preliminary Information

Table 1.

AMD-761™ System Controller Configuration Register Bits Unknown at RESET#

Offset

Bit Name

Bit(s)

ECC Mode/Status

Dev 0:F0:0x48

SERR_Enable

[15:14]

ECC_Diag

[12]

ECC_Mode

[11:10]

DRAM Timing

Dev 0:F0:0x54

SBPWaitState

[31]

Addr_Timing_A

[30]

Addr_Timing_A

[29]

RD_Wait_State

[28]

Reg_DIMM_En

[27]

tWTR

[26]

tWR

[25:24]

tRRD

[23]

Idle_Cyc_Limit

[18:16]

PH_Limit

[15:14]

tRC

[11:9]

tRP

[8:7]

tRAS

[6:4]

tCL

[3:2]

tRCD

[1:0]

DRAM Mode/Status

Dev 0:F0:0x58

Burst_Ref_En

[20]

Ref_Dis

[19]

Reserved

[18]

Cyc_Per_Ref

[17:16]

CS7_X4Mode

[7]

CS6_X4Mode

[6]

CS5_X4Mode

[5]

CS4_X4Mode

[4]

CS3_X4Mode

[3]

CS2_X4Mode

[2]

CS1_X4Mode

[1]

CS0_X4Mode

[0]

Status/Control

Dev 0:F0:0x70

Self_Ref_En

[18]

Memory Base Address 0–7

Dev 0:F0:0xC0

through

Dev 0:F0:0xDC

CS_Base

[31:23]

CS_Mask

[15:7]

Addr_Mode

[2:1]

CS_En

[0]

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