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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 147
ProgramIo2RangeLo - RW – 8 bits - [PM_Reg: 18h]
Field Name Bits Default Description
ProgramIo2RangeLo register.
ProgramIo2RangeHi - RW – 8 bits - [PM_Reg: 19h]
Field Name Bits Default Description
ProgramIo2RangeHi 7:0 00h I/O range base address; these bits define the most significant
byte of the 16 bit I/O range base address. Bit 7 corresponds
to Addr[15] and bit 0 to Addr[8].
ProgramIo2RangeHi register.
ProgramIo3RangeLo - RW – 8 bits - [PM_Reg: 1Ah]
Field Name Bits Default Description
ProgramIo3Mask 3:0 0h These four bits are used to mask the least 4 bits of the 16 bit
I/O. If bit [3] is set, then bit [3] of the I/O address is not
compared. If it is not set, then bit [3] of the monitored
address is 0. The same applies to the other three bits [2:0].
For example, if x15=80h, x14[7:4]=Ah, and x14[3:0]=3h, then
the monitored range is 80A4h : 80A0h (bit 0 and 1 are
masked)
ProgramIo3RangeLo 7:4 0h I/O range base address; these bits define the least significant
byte of the 16 bit I/O range base address that is programmed
to trigger SMI# when the address is accessed. Bit 7
corresponds to Addr[7] and bit 4 to Addr[4].
ProgramIo3RangeLo register.
ProgramIo3RangeHi - RW – 8 bits - [PM_Reg: 1Bh]
Field Name Bits Default Description
ProgramIo3RangeHi 7:0 00h I/O range base address; these bits define the most significant
byte of the 16 bit I/O range base address. Bit 7 corresponds
to Addr[15] and bit 0 to Addr[8].
ProgramIo3RangeHi register.
ProgramIoEnable - RW – 8 bits - [PM_Reg: 1Ch]
Field Name Bits Default Description
AD_LIB_MonitorEn 0 0b Enables AD_LIB monitoring to trigger SMI#, 1=On, 0=Off
MIDI_MonitorEn 1 0b Enables MIDI monitoring to trigger SMI#; 1= On, 0= Off
AudioMSSMonitorEn 2 0b Enables Audio/MSS monitoring to trigger SMI#; 1= On, 0 =
Off
MouseKbMonitorEn 3 0b Enables Mouse/Keyboard monitoring to trigger SMI#; 1= On,
0 = Off
ProgramIo3Enable 4 0b Enables IO monitoring for ProgramIO3 (defined by index 1A,
1B); 1= On, 0 = Off
ProgramIo2Enable 5 0b Enables IO monitoring for ProgramIO2 (defined by index 18,
19); 1= On, 0 = Off
ProgramIo1Enable 6 0b Enables IO monitoring for ProgramIO1 (defined by index 16,
17); 1= On, 0 = Off
ProgramIo0Enable 7 0b Enables IO monitoring for ProgramIo0 (defined by index 14,
15); 1= On, 0 = Off
IOMonitorEn register
IOMonitorStatus - RW – 8 bits - [PM_Reg: 1Dh]
Field Name Bits Default Description
AD_LIB_MonitorStatus 0 - AD_LIB status bit; write 1’b1 to clear the status
MIDI_MonitorStatus 1 - MIDI status bit; write 1’b1 to clear the status bit
AudioMSSMonitorStatus 2 - Audio/MSS status bit; write 1’b1 to clear the status bit