AMD SB600 Specifications download pdf (Page 3)

2008 Advanced Micro Devices Inc.

Table of Contents

AMD SB600 BIOS Developer’s Guide (Public Version) Proprietary

Page 3

Table of Contents

1 Introduction .................................................................................................................7

1.1 About This Manual........................................................................................................................7

1.2 Overview.......................................................................................................................................7

1.3 PCI Internal Devices ...................................................................................................................10

2 SB600 Programming Architecture..........................................................................12

2.1 PCI Devices and Functions .........................................................................................................12

2.2 I/O Map .......................................................................................................................................13

2.2.1 Fixed I/O Address Ranges...................................................................................................................13

2.2.1.1 Fixed I/O Address Ranges – SB600 Proprietary Ports................................................................13

2.2.2 Variable I/O Decode Ranges ...............................................................................................................13

2.3 Memory Map...............................................................................................................................14

3 SB600 Early-POST Initialization.............................................................................15

3.1 512K/1M ROM Enable...............................................................................................................15

3.1.1 PCI ROM.............................................................................................................................................15

3.1.2 LPC ROM............................................................................................................................................15

3.1.3 LPC ROM Read/Write Protect ............................................................................................................15

3.1.4 SPI ROM controller.............................................................................................................................16

3.2 Real Time Clock (RTC) ..............................................................................................................17

3.2.1 RTC Access .........................................................................................................................................17

3.2.1.1 Special Locked Area in CMOS ...................................................................................................17

3.2.1.2 Century Byte................................................................................................................................17

3.2.1.3 Date Alarm...................................................................................................................................17

3.3 BIOS RAM..................................................................................................................................18

3.4 Serial IRQ....................................................................................................................................18

3.5 SubSystemID and SubSystem Vendor ID...................................................................................19

3.6 AMD Athlon™ Processor Registers ...........................................................................................19

3.7 System Restart after Power Fail ..................................................................................................20

3.7.1 Power Fail and Alarm Setup................................................................................................................20

4 PCI IRQ Routing.......................................................................................................21

4.1 PCI IRQ Routing Registers.........................................................................................................21

4.2 PCI IRQ BIOS Programming......................................................................................................21

4.3 Integrated PCI Devices IRQ Routing..........................................................................................22

4.3.1 IRQ Routing for HD Audio.................................................................................................................22

4.4 PCI IRQ Routing for APIC Mode...............................................................................................23

5 SMBus Programming ...............................................................................................24

5.1 SMBus I/O Base Address............................................................................................................24

5.2 SMBus Timing............................................................................................................................24

5.3 SMBus Host Controller Programming........................................................................................25

6 IDE Controller...........................................................................................................27

1 2 3 4 5 6 7 8 ... 97 98

Comments to this Manuals

No comments

AMD SB600 Specifications Page 3

Comments to this Manuals

Related products and manuals for Motherboards AMD SB600