Product specifications

VT8235 V-Link South Bridge
Revision 1.22 October 24, 2002 -29- Register Overview
Configuration Space Power Management Registers
Offset
Power Mana
g
ement Default Acc
80 General Configuration 0 00 RW
81 General Configuration 1
04
RW
82 ACPI Interrupt Select 00 RW
83 -reserved- 00
—
85-84 Primary Interrupt Channel 0000 RW
87-86 Secondary Interrupt Channel 0000 RW
8B-88 Power Mgmt I/O Base (256 Bytes)
0000 0001
RW
8C Host Bus Power Mgmt Control 00 RW
8D Throttle / Clock Stop Control 00 RW
8E-8F -reserved- 00
—
93-90 GP Timer Control 0000 0000 RW
94 Power Well Control 00 RW
95 Miscellaneous Control 00 RW
96 Power On / Reset Control 00 RW
97 -reserved- 00
—
98 GP2 / GP3 Timer Control 00 RW
99 GP2 Timer 00 RW
9A GP3 Timer 00 RW
9B-A0 -reserved- 00
—
A1 Write value for Offset 9 (Prog Intfc) 00
WO
A2 Write value for Offset A (Sub Class) 00
WO
A3 Write value for Offset B (Base Class) 00
WO
A4-BF -reserved- 00
—
C3-C0 Power Management Capability
0002 0001 RO
C7-C4 Power Management Capability CSR
0000 0000
RW
C8-CF -reserved- 00
—
Configuration Space SMBus Registers
Offset
System Management Bus Default Acc
D1-D0 SMBus I/O Base (16 Bytes)
0001
RW
D2 SMBus Host Configuration 00 RW
D3 SMBus Host Slave Command 00 RW
D4 SMBus Slave Address Shadow Port 1 00 RW
D5 SMBus Slave Address Shadow Port 2 00 RW
D6 SMBus Revision ID
nn RO
D7-DF -reserved- 00
—
Configuration Space General Purpose I/O Registers
Offset
General Purpose I/O Default Acc
E0 GPI Inversion Control 00 RW
E1 GPI SCI / SMI Select 00 RW
E2-E3 -reserved- 00
—
E4 GPO Pin Select 00 RW
E5 GPIO I/O Select 1 00 RW
E6 GPIO I/O Select 2 00 RW
E7 GPO Output Type 00 RW
E8-FF -reserved- 00
—