AMD-761 datasheet(5/264 Pages) AMD

5 / 264 page

Table of Contents

24081D—February 2002

AMD-761™ System Controller Software/BIOS Design Guide

Preliminary Information

PCI Bus Interface

195

5.1

Delayed Transactions and Ordering Rules Usage

. . . . . . . 195

5.1.1 Delayed Transactions and Target Latency . . . . . . . . 196

5.1.2 Transaction Ordering Rules . . . . . . . . . . . . . . . . . . . . 199

5.1.3 Special Arbitration Considerations

for the Southbridge . . . . . . . . . . . . . . . . . . . . . . . . . . . 201

5.2

PCI Performance Optimization Options . . . . . . . . . . . . . . . . 202

5.2.1 Read Prefetching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202

5.2.2 PCI Chaining . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203

5.2.3 PCI Bus Parking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203

6AGP Interface

205

6.1

AGP Dynamic Compensation Requirements . . . . . . . . . . . . 205

6.1.1 The AGP 4X Dynamic Compensation Register . . . . . 206

6.1.2 Selection of 1.5- or 3.3-V AGP Signalling . . . . . . . . . . 207

6.2

Feature Override Bits for AGP Cards

. . . . . . . . . . . . . . . . . 208

6.3

BIOS Initialization Requirements

. . . . . . . . . . . . . . . . . . . . 209

6.4

AGP Miniport Driver Requirements

. . . . . . . . . . . . . . . . . . 210

Recommended BIOS Settings

211

7.1

PCI Bus 0, Device 0, Function 0 Registers

. . . . . . . . . . . . . 212

7.1.1 Example Settings for Memory Timing . . . . . . . . . . . . 218

7.1.2 Examples: AGP Compensation Register Settings

(0xB4-0xBB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232

7.1.3 PCI Bus 0, Device 0, Function 1 Registers . . . . . . . . . 236

7.2

PCI Bus 0, Device 1, Function 0 Registers

. . . . . . . . . . . . . 246

AMD-761 Datasheet(PDF) 5 Page - Advanced Micro Devices

AMD-761 Datasheet(HTML) 5 Page - Advanced Micro Devices

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Descarga

Enlace URL