AMD SB600 User Manual

Page 150

Advertising
background image


©2008 Advanced Micro Devices, Inc.

SMBus Module and ACPI Block (Device 20, Function 0)

AMD SB600 Register Reference Manual

Proprietary

Page 150

AcpiSmiCmdLo - RW – 8 bits - [PM_Reg: 2Ah]

Field Name

Bits

Default

Description

AcpiSmiCmdLo 7:0

00h

These

bits define the least significant byte of the 16 bit I/O

base address of the ACPI SMI Command block. Bit 0
corresponds to Addr[0] and bit 7 corresponds to Addr[7]. The
address is required to be DWORD-aligned (Bit[1:0]=00b)

AcpiSmiCmdLo register.

AcpiSmiCmdHi - RW – 8 bits - [PM_Reg: 2Bh]

Field Name

Bits

Default

Description

AcpiSmiCmdHi

7:0

00h

These bits define the most significant byte of the 16 bit I/O
base address. Bit 0 corresponds to Addr[8] and bit 7
corresponds to Addr[15].

AcpiSmiCmdHi register.

AcpiPmaCntBlkLo - RW – 8 bits - [PM_Reg: 2Ch]

Field Name

Bits

Default

Description

AcpiPmaCntBlkLo 7:0

00h

These

bits define the least significant byte of the 16 bit I/O

base address of the ACPI power management additional
control block. Bit 0 corresponds to Addr[0] and bit 7
corresponds to Addr[7].

AcpiPmaCntBlkLo register.

AcpiPmaCntBlkHi - RW – 8 bits - [PM_Reg: 2Dh]

Field Name

Bits

Default

Description

AcpiPmaCntBlkHi 7:0

00h

These

bits define the most significant byte of the 16 bit I/O

base address. Bit 0 corresponds to Addr[8] and bit 7
corresponds to Addr[15].

AcpiPmaCntBlkHi register.

GEvtConfig0 – RW – 8 bits - [PM_Reg: 30h]

Field Name

Bits

Default

Description

GEvtConfig0 7:0

00h

GEVENT

Configuration. These 8 bits are used for

configuring general purpose events 0-3. Two bits for each
event pin. Bit[1:0] for GEVENT[0], bit[3:2] for GEVENT[1]
and so on
00 ACPI Event (trigger SCIOUT or SMI#
depending on SCI_EN bit)
01 GEVENT to generate SMI#
10 GEVENT to generate SMI# followed by SCI
11 GEVENT to generate IRQ13

GEvtConfig0 register.

GEvtConfig1 – RW – 8 bits - [PM_Reg: 31h]

Field Name

Bits

Default

Description

GEvtConfig1 7:0

00h

GEVENT

Configuration. These 8 bits are used for

configuring General Purpose Events 4-7. Two bits for each
event pin. Bit[1:0] for GEVENT[4], bit[3:2] for GEVENT[5]
and so on
00 ACPI Event (trigger SCIOUT or SMI#
depending on SCI_EN bit)
01 GEVENT to generate SMI#
10 GEVENT to generate SMI# followed by SCI
11 GEVENT to generate IRQ13

GEvtConfig1 register.

Advertising