VT82C596 datasheet(33/96 Pages) ETC

33 / 96 page

VT82C596B

Revision 0.3 June 17, 1999

-27-

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I/O Space System Management Bus Registers

Offset System Management Bus

Default

Acc

SMBus Host Status

SMBus Slave Status

SMBus Host Control

SMBus Host Command

SMBus Host Address

SMBus Host Data 0

SMBus Host Data 1

SMBus Block Data

SMBus Slave Control

SMBus Shadow Command

A-B SMBus Slave Event

0000

C-D SMBus Slave Data

0000

E-F

-reserved-

—

I/O Space Power Management- Registers

Offset Basic Control / Status Registers

Default

Acc

1-0

Power Management Status

0000

3-2

Power Management Enable

0000

5-4

Power Management Control

0000

6-7

-reserved-

—

B-8

Power Management Timer

0000 0000 RW

C-F

-reserved-

—

Offset Processor Registers

Default

Acc

13-10 Processor and PCI Bus Control

0000 0000 RW

Processor LVL2

Processor LVL3

16-1F -reserved-

—

Offset General Purpose Registers

Default

Acc

21-20 General Purpose Status

0000

23-22 General Purpose SCI Enable

0000

25-24 General Purpose SMI Enable

0000

26-27 -reserved-

—

Offset Generic Registers

Default

Acc

29-28 Global Status

0000

2B-2A Global Enable

0000

2D-2C Global Control

0010

-reserved-

—

SMI Command

33-30 Primary Activity Detect Status

0000 0000 WC

37-34 Primary Activity Detect Enable

0000 0000 RW

3B-38 GP Timer Reload Enable

0000 0000 RW

3C-3F -reserved-

—

Offset General Purpose I/O Registers

Default

Acc

General Purpose Control

41-43 -reserved-

—

45-44 External SMI Input Value

input

46-47 -reserved-

—

4B-48 GPI Port Input Value

input

4F-4C GPO Port Output Value

7FFFFFFF RW

50-FF -reserved-

—

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