Specifications

 2012 Advanced Micro Devices, Inc.
HD Audio (bus-0, dev-20, fun-02)
AMD SP5100 Register Programming Requirements
Page 66
All Revs SP5100 Smbus_PCI_Config_Extend_Reg 0x00[5:4]
= 10 (default)
Port 2 configuration for HD Audio/AC97/GPIO:
00 or 11 = GPIO
01 = no function
10 = HD Audio
Note: Port 2 refers to the ACZ_SDIN2/GPIO44 pin.
All Revs SP5100 Smbus_PCI_Config_Extend_Reg 0x00[7:6]
= 10 (default)
Port 3 configuration for HD Audio/AC97/GPIO:
00 or 11 = GPIO
01 = no function
10 = HD Audio
Note: Port 3 is the AZ_SDIN3/GPIO46 pin.
Note: The Smbus_PCI_Config_Extend_Reg are indirectly accessed registers that are accessed through Smbus_PCI_config
xF8 (ExtendedAddrPort) and Smbus_PCI_config xFC (ExtendedDataPort). Refer to the AMD SP5100 Register Reference
Guide, SMBUS section describing the PCI config xF8/FC details.
SATA
USB
SMBUS
PATA
AC97
HD AUDIO
LPC
PCI
For register details refer to
the sections check-marked
in the SP5100 Register
Reference Guide
X
RTC
ACPI
PM REG
A-LINK
I/O REG
XIOAPIC