VT82C686B
Function 3 Registers - USB Controller Ports 2-3............................................................................................................... 78
PCI Configuration Space Header.......................................................................................................................................................... 78
USB-Specific Configuration Registers.................................................................................................................................................. 79
USB I/O Registers................................................................................................................................................................................. 80
Function 4 Regs - Power Management, SMBus and HWM.............................................................................................. 81
PCI Configuration Space Header.......................................................................................................................................................... 81
Power Management-Specific PCI Configuration Registers .................................................................................................................. 82
Hardware-Monitor-Specific Configuration Registers ........................................................................................................................... 89
System Management Bus-Specific Configuration Registers................................................................................................................. 89
Power Management I/O-Space Registers.............................................................................................................................................. 90
System Management Bus I/O-Space Registers...................................................................................................................................... 99
Hardware Monitor I/O Space Registers .............................................................................................................................................. 102
Function 5 & 6 Registers - AC97 Audio & Modem Codecs ............................................................................................ 106
PCI Configuration Space Header – Function 5 Audio........................................................................................................................ 106
PCI Configuration Space Header – Function 6 Modem...................................................................................................................... 107
Function 5 & 6 Codec-Specific Configuration Registers.................................................................................................................... 108
I/O Base 0 Registers –Audio/Modem Scatter/Gather DMA................................................................................................................ 110
I/O Base 1 Registers – Audio FM NMI Status Registers .................................................................................................................... 114
I/O Base 2 Registers – MIDI / Game Port........................................................................................................................................... 114
I/O Base 3 Registers – Codec Register Shadow.................................................................................................................................. 114
Memory Mapped I/O APIC Registers................................................................................................................................................. 115
Indexed I/O APIC 32-Bit Registers..................................................................................................................................................... 115
FUNCTIONAL DESCRIPTIONS ................................................................................................................................................ 117
POWER MANAGEMENT.............................................................................................................................................................. 117
Power Management Subsystem Overview .......................................................................................................................................... 117
Processor Bus States ........................................................................................................................................................................... 117
System Suspend States and Power Plane Control............................................................................................................................... 118
General Purpose I/O Ports................................................................................................................................................................... 118
Power Management Events................................................................................................................................................................. 119
System and Processor Resume Events ................................................................................................................................................ 119
Legacy Power Management Timers .................................................................................................................................................... 120
System Primary and Secondary Events............................................................................................................................................... 120
Peripheral Events ................................................................................................................................................................................ 120
ELECTRICAL SPECIFICATIONS............................................................................................................................................. 121
ABSOLUTE MAXIMUM RATINGS ............................................................................................................................................... 121
DC CHARACTERISTICS.............................................................................................................................................................. 121
PACKAGE MECHANICAL SPECIFICATIONS ...................................................................................................................... 122
Revision 1.71 June 9, 2000
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Table of Contents
ETC [ ETC ]
