AMD-766AC AMD [Advanced Micro Devices], AMD-766AC Datasheet - Page 3

• Manufacturer Part Number: AMD-766AC
• Description: Peripheral Bus Controller
• Manufacturer: AMD [Advanced Micro Devices]

23167B – March 2001
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2
3
4
5
1.1
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
4.1
4.2
4.3
4.4
4.5
4.6
5.1
Overview .................................................................................................................................5
Ordering Information.............................................................................................................6
Signal Descriptions.................................................................................................................7
Functional Operation ...........................................................................................................15
4.1.1
4.2.1
4.3.1
4.3.2
4.3.3
4.3.4
4.3.5
4.5.1
4.6.1
4.6.2
4.6.3
4.6.4
4.6.5
Registers ...............................................................................................................................31
4.3.4.1
4.3.4.2
4.6.1.1
4.6.1.2
4.6.1.3
4.6.1.4
4.6.1.5
Features .......................................................................................................................................5
Terminology ................................................................................................................................7
PCI Interface ...............................................................................................................................8
Processor Interface......................................................................................................................8
ISA/LPC Bus and Legacy Support Signals.................................................................................9
Ultra DMA Enhanced IDE Interface ........................................................................................10
System Management Signals .....................................................................................................11
Universal Serial Bus Interface...................................................................................................14
Miscellaneous Signals ................................................................................................................14
Power And Ground ...................................................................................................................14
Overview ...................................................................................................................................15
PCI Interface .............................................................................................................................16
ISA/LPC Bridge And Legacy Logic .........................................................................................16
4.3.4.2.1 WSC#..................................................................................................................................... 20
4.3.4.2.2 The IRQ lines ......................................................................................................................... 21
Enhanced IDE Controller .........................................................................................................21
USB Controller..........................................................................................................................21
System Management Logic........................................................................................................22
4.6.1.5.1 Transitions Between MOFF/SOFF/STD/STR and FON .......................................................... 27
4.6.1.5.2 Transitions From FON To C2, C3 And POS........................................................................... 28
4.6.1.5.3 Transitions From C2, C3 And POS To FON........................................................................... 28
Register Overview .....................................................................................................................31
Resets............................................................................................................................................... 15
Subtractive Versus Medium Decoding .............................................................................................. 16
ISA Bus............................................................................................................................................ 16
LPC Interface ................................................................................................................................... 17
Legacy and Miscellaneous Support Logic ......................................................................................... 17
Interrupt Controllers......................................................................................................................... 18
Real-Time Clock (Logic Powered by VDD_AL) ............................................................................... 21
USB Interrupts ................................................................................................................................. 21
Power Management .......................................................................................................................... 22
Serial IRQ Protocol .......................................................................................................................... 29
SMBus Controller ............................................................................................................................ 29
Plug And Play .................................................................................................................................. 30
General Purpose IO .......................................................................................................................... 30
Interrupt Routing Logic ................................................................................................................ 18
IOAPIC ........................................................................................................................................ 20
SCI And SMI Control................................................................................................................... 24
Traps............................................................................................................................................ 24
System Inactivity Timer................................................................................................................ 25
Throttling logic ............................................................................................................................ 25
System Power State Controller (SPSC) ......................................................................................... 25
Table of Contents
Preliminary Information
AMD-766
TM
Peripheral Bus Controller Data Sheet
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