VT8231 datasheet(4/132 Pages) ETC

4 / 132 page

VT8231

Preliminary Revision 0.8 October 29, 1999

-ii-

Table of Contents

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TABLE OF CONTENTS

REVISION HISTORY........................................................................................................................................................................I

TABLE OF CONTENTS .................................................................................................................................................................. II

LIST OF FIGURES..........................................................................................................................................................................IV

LIST OF TABLES ...........................................................................................................................................................................IV

OVERVIEW ....................................................................................................................................................................................... 5

PINOUTS ............................................................................................................................................................................................ 7

PIN DIAGRAM................................................................................................................................................................................. 7

PIN LISTS........................................................................................................................................................................................ 8

PIN DESCRIPTIONS....................................................................................................................................................................... 10

REGISTERS ..................................................................................................................................................................................... 29

REGISTER OVERVIEW ................................................................................................................................................................. 29

REGISTER DESCRIPTIONS............................................................................................................................................................ 41

Legacy I/O Ports ................................................................................................................................................................... 41

Keyboard Controller Registers.............................................................................................................................................................. 42

DMA Controller I/O Registers .............................................................................................................................................................. 44

Interrupt Controller Registers ............................................................................................................................................................... 45

Timer / Counter Registers ..................................................................................................................................................................... 45

CMOS / RTC Registers......................................................................................................................................................................... 46

Super-I/O Configuration Index / Data Registers ............................................................................................................... 47

Super-I/O Configuration Registers ..................................................................................................................................... 47

Super-I/O I/O Ports .............................................................................................................................................................. 50

Floppy Disk Controller Registers.......................................................................................................................................................... 50

Parallel Port Registers ........................................................................................................................................................................... 51

Serial Port 1 Registers........................................................................................................................................................................... 52

Serial Port 2 Registers........................................................................................................................................................................... 53

SoundBlaster Pro Port Registers......................................................................................................................................... 54

FM Registers ......................................................................................................................................................................................... 54

Mixer Registers ..................................................................................................................................................................................... 54

Sound Processor Registers .................................................................................................................................................................... 54

Game Port Registers ............................................................................................................................................................. 55

PCI Configuration Space I/O............................................................................................................................................... 56

Function 0 Registers - PCI to ISA Bridge........................................................................................................................... 57

PCI Configuration Space Header .......................................................................................................................................................... 57

ISA Bus Control.................................................................................................................................................................................... 57

Plug and Play Control ........................................................................................................................................................................... 61

Distributed DMA / Serial IRQ Control ................................................................................................................................................. 63

Miscellaneous / General Purpose I/O.................................................................................................................................................... 64

Function 1 Registers - Enhanced IDE Controller .............................................................................................................. 69

PCI Configuration Space Header .......................................................................................................................................................... 69

IDE-Controller-Specific Confiiguration Registers ................................................................................................................................ 71

IDE I/O Registers.................................................................................................................................................................................. 76

Function 2 Registers - USB Controller Ports 0-1 ............................................................................................................... 77

PCI Configuration Space Header .......................................................................................................................................................... 77

USB-Specific Configuration Registers.................................................................................................................................................. 78

USB I/O Registers................................................................................................................................................................................. 79

Function 3 Registers - USB Controller Ports 2-3 ............................................................................................................... 80

PCI Configuration Space Header .......................................................................................................................................................... 80

USB-Specific Configuration Registers.................................................................................................................................................. 81

USB I/O Registers................................................................................................................................................................................. 82

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