Bit4 – SMB_A(Set if 1st battery on SMBus)
Bit5 – SMB_B(Set if 2nd battery on SMBus)
Bit6 – SMB_C(Set if 3rd battery on SMBus)
Bit7 – SMB_D(Set if 4th battery on SMBus)
12.17.6 EC interface OEM common RAM definition
ACPI_FLAG0
Bit0 –Main HDD (1:exist)
Bit1 – Internal FDD (1:exist)
Bit2 – Internal CD_COM (1:exist)
Bit3 – 2ND HDD (1:exist)
Bit4 – LS-120 (1:exist)
Bit5 –External FDD(1:exist)
Bit6 – CRT-PLUG (1:in)
ACPI_FLAG1
Bit0 – Sleep button(1:pressed)
Bit1 – Video out button(1:pressed)
Bit2 – Decrease Volume(1:pressed)
Bit3 – Increase Volume(1:pressed)
Bit4 – Mute button(1:pressed)
Bit5 – Contrast button(1:pressed)
Bit6 – Brightness button(1:pressed)
Bit7 – Save to disk button(1:pressed)
ACPI_FLAG2
Bit0 – ACPI entry S4 state
Bit1 = password enable, set 1
Bit2=beep alarm enable, set 1
Bit3= touch pad button(1:enable)
Bit4=Fn state (1: fn key down)
Bit5= CD/DVD mode selected,set 1
Bit6= Digitial mode selected,set 1
Bit7= CD Lock mode enable,set 1
SWI Event indicators
Bit1 – Lid open event(0=off,1=on)
Bit2 – PME event(0=off,1=on)
Bit3 – Power button event(0=off,1=on))
Bit4 – Ring in event(0=off,1=on)