VT82C586B

Revision 1.0 May 13, 1997

-ii-

Table of Contents

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

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

LIST OF FIGURES..........................................................................................................................................................................III

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

OVERVIEW ....................................................................................................................................................................................... 3

PINOUTS ............................................................................................................................................................................................ 4

REGISTERS ..................................................................................................................................................................................... 14

Legacy I/O Ports ................................................................................................................................................................... 21

Keyboard Controller Registers.............................................................................................................................................................. 22

DMA Controller I/O Registers .............................................................................................................................................................. 24

Interrupt Controller Registers ............................................................................................................................................................... 25

Timer / Counter Registers ..................................................................................................................................................................... 25

CMOS / RTC Registers......................................................................................................................................................................... 26

PCI to ISA Bridge Registers (Function 0) .......................................................................................................................... 27

PCI Configuration Space Header .......................................................................................................................................................... 27

ISA Bus Control.................................................................................................................................................................................... 27

Plug and Play Control ........................................................................................................................................................................... 30

Distributed DMA Control ..................................................................................................................................................................... 32

Miscellaneous ....................................................................................................................................................................................... 32

Enhanced IDE Controller Registers (Function 1).............................................................................................................. 33

PCI Configuration Space Header .......................................................................................................................................................... 33

IDE-Controller-Specific Confiiguration Registers ................................................................................................................................ 35

IDE I/O Registers.................................................................................................................................................................................. 37

Universal Serial Bus Controller Registers (Function 2) .................................................................................................... 38

PCI Configuration Space Header .......................................................................................................................................................... 38

USB-Specific Configuration Registers.................................................................................................................................................. 39

USB I/O Registers................................................................................................................................................................................. 39

Power Management Registers (Function 3)........................................................................................................................ 40

PCI Configuration Space Header .......................................................................................................................................................... 40

Power Management-Specific PCI Configuration Registers .................................................................................................................. 41

Power Management Subsystem Overview ............................................................................................................................................ 43

Power Management I/O-Space Registers .............................................................................................................................................. 46

ELECTRICAL SPECIFICATIONS ............................................................................................................................................... 55

PACKAGE MECHANICAL SPECIFICATIONS ........................................................................................................................ 63