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PDF VT82C686B Data sheet ( Hoja de datos )
| Número de pieza | VT82C686B | |
| Descripción | Super South / South Bridge | |
| Fabricantes | VIA | |
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Hay una vista previa y un enlace de descarga de VT82C686B (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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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
-iii-
Table of Contents
5 Page 
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VT82C686B
The VT82C686B also enhances the functionality of the standard ISA peripherals. The integrated interrupt controller supports both
edge and level triggered interrupts channel by channel. The integrated DMA controller supports type F DMA in addition to
standard ISA DMA modes. Compliant with the PCI-2.2 specification, the VT82C686B supports delayed transactions and remote
power management so that slower ISA peripherals do not block the traffic of the PCI bus. Special circuitry is built in to allow
concurrent operation without causing dead lock even in a PCI-to-PCI bridge environment. The chip also includes eight levels
(doublewords) of line buffers from the PCI bus to the ISA bus to further enhance overall system performance.
CPU / Cache
Sideband Signals:
Init / CPUreset
IRQ / NMI
SMI / StopClk
FERR / IGNNE
SLP# (Slot-1)
CA
CD
Boot ROM
RTC
Crystal
North Bridge
VT82C686A
352 BGA
Expansion
Cards
ISA
MA/Command System Memory
MD
DIMM Module ID
PCI
SMB
USB Ports 0-3
Keyboard / Mouse
MIDI / Game Ports
Parallel Port
Expansion
Cards
Serial Ports 1 and 2
Infrared Comm Port
IDE Primary and Secondary
Floppy Disk Interface
AC97 Link
Hardware Monitor Inputs
GPIO, Power Control, Reset
Figure 1. PC System Configuration Using the VT82C686B
Revision 1.71 June 9, 2000
-5-
Overview
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet VT82C686B.PDF ] | |
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