AMD SB600 - Manual (Page 120)

©2008 Advanced Micro Devices, Inc. SMBus Module and ACPI Block (Device 20, Function 0)
AMD SB600 Register Reference Manual Proprietary Page 120
2.3.1.2 Extended Registers
Register Name Configuration Offset
AudioPortConfig 00h
AudioGpioControl 04h
AudioPortConfig- RW - 32 bits - [Extend_Reg: 00h]
Field Name Bits Default Description
AzPort0Config 1:0 01b Port configuration for HD Audio and AC97 input port:
00 or 11 = GPIO port
01 = Set as ac97 port
10 = Set as HD Audio port
AzPort1Config 3:2 01b Port configuration for HD Audio and AC97 input port:
00 or 11 = GPIO port
01 = Set as ac97 port
10 = Set as HD Audio port
AzPort2Config 5:4 10b Port configuration for HD Audio and AC97input port:
00 or 11 = GPIO port
01 = Set as ac97 port
10 = Set as HD Audio port
AzPort3Config 7:6 10b Port configuration for HD Audio and AC97input port:
00 or 11 = GPIO port
01 = Set as ac97 port
10 = Set as HD Audio port
Reserved 15:8
AudioGpioIn0Status 16 - When ACZ_SDIN0 is configured as GPIO, this bit returns the
GPIO input status.
AudioGpioIn1Status 17 - When ACZ_SDIN 1 is configured as GPIO, this bit returns the
GPIO input status.
AudioGpioIn2Status 18 - When ACZ_SDIN 2 is configured as GPIO, this bit returns the
GPIO input status.
AudioGpioIn3Status 19 - When ACZ_SDIN 3 is configured as GPIO, this bit returns the
GPIO input status.
AzRstGpioIN 20 - When AZ_RST# is configured as GPIO, this bit returns the
GPIO input status.
Reserved 23:21
Ac97RstGpioIn 24 - When AC_RST# is configured as GPIO, this bit returns the
GPIO input status.
Ac97BclkGpioIn 25 - When AC_BitClk is configured as GPIO, this bit returns the
GPIO input status.
Ac97SyncGpioIn 26 - When AC_Sync is configured as GPIO, this bit returns the
GPIO input status.
Ac97DOutGpioIn 27 - When AC_DataOut is configured as GPIO, this bit returns the
GPIO input status.
SpdifGpioIn 28 - When AC_SPDIF is configured as GPIO, this bit returns the
GPIO input status.
Reserved 31:29
AudioPortConfig register.