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©2008 Advanced Micro Devices, Inc.
SMBus Module and ACPI Block (Device 20, Function 0)
AMD SB600 Register Reference Manual Proprietary Page 155
OthersConfig- RW – 8 bits - [PM_Reg: 3Ch]
Field Name Bits Default Description
Ac97Config 7:6 00b These two bits configure AC97 PME
00 ACPI Event (trigger SCIOUT or SMI#
depending on SCI_EN bit)
01 Ac97 PME to generate SMI#
10 Ac97 PME to generate SMI# followed by SCI
11 Ac97 PME to generate IRQ13
MorePmeConfig – RW – 8 bits - [PM_Reg: 3Dh]
Fi/eld Name Bits Default Description
OtherThermConfig 1:0 00b These two bits configure OtherTherm
00 ACPI Event (trigger SCIOUT or SMI#
depending on SCI_EN bit)
01 OtherTherm to generate SMI#
10 OtherTherm to generate SMI# followed by SCI
11 OtherTherm to generate IRQ13
Gpm9Config 3:2 00b These two bits configure GPM[9]
00 ACPI Event (trigger SCIOUT or SMI#
depending on SCI_EN bit)
01 GPM[9] to generate SMI#
10 GPM[9] to generate SMI# followed by SCI
11 GPM[9] to generate IRQ13
PCIeHotPlugConfig 5:4 00b These two bits configure PCIeHotPlug
00 ACPI Event (trigger SCIOUT or SMI#
depending on SCI_EN bit)
01 PCIeHotPlug to generate SMI#
10 PCIeHotPlug to generate SMI# followed by SCI
11 PCIeHotPlug to generate IRQ13
Reserved 7:6 00b
VRT_T1 - RW – 8 bits - [PM_Reg: 3Eh]
Field Name Bits Default Description
VRT_T1 7:0 01h The RTC battery is sampled (to conserve power) periodically
to checks its state of health. VRT_T1 and VRT_T2 make up
the interval of the checking. When VRT_Enable is high, the
battery is being sampled. When VRT_enable is low, the
battery is not being sampled. This register defines the time
of VRT enable being high for RTC battery monitor circuit, in
miliseconds.
VRT_T1 register.
VRT_T2 - RW – 8 bits - [PM_Reg: 3Fh]
Field Name Bits Default Description
VRT_T2 7:0 FFh This register defines the time of VRT enable being low for the
RTC battery monitor circuit, in 4 ms increment.
VRT_T2 register.
AD_Pull_UpB - RW – 8 bits - [PM_Reg: 40h]
Field Name Bits Default Description
AD_Pull_UpB 7:0 00h This register controls integrated pull-up for AD[31:24]
respectively.
0: Enable
1: Disable
AD_Pull_UpB register.