AMD SB600 User Manual
Page 229

©2008 Advanced Micro Devices, Inc.
HD Audio Controllers Registers
AMD SB600 Register Reference Manual
Proprietary
Page 229
Latency Timer – R – 8 bits – [PCI_Reg: 0Dh]
Field Name
Bits
Default
Description
Latency Timer
7:0
00h
Hardwired to “0”.
Header Type – R – 8 bits – [PCI_Reg: 0Eh]
Field Name
Bits
Default
Description
Header Type
7:0
00h
Hardwired to “0”.
BIST – R – 8 bits – [PCI_Reg: 0Fh]
Field Name
Bits
Default
Description
BIST
15:0
0000h
Hardwired to “0”
.
Lower Base Address Register – RW – 32 bits – [PCI_Reg: 10h]
Field Name
Bits
Default
Description
Space Type
0
0b
Hardwired to “0” to indicate this BAR is located in memory
space only.
Address Range
2:1
10b
Hardwired to 10b to indicate this BAR can be located
anywhere in 64-bit address space.
Prefetchable
3
0b
Hardwired to “0” to indicate this BAR is not prefetchable.
Reserved
13:4
000h
Hardwired to “0”.
Lower Base Address
31:14
00000h
Lower Base Address for the HD Audio controller’s memory
mapped configuration registers. 16K bytes are requested
by hardwiring bits[13:4] to 0.
Upper Base Address Register – RW – 32 bits – [PCI_Reg: 14h]
Field Name
Bits
Default
Description
Upper Base Address
31:0
00000000
h
Upper Base Address for the HD Audio controller’s memory
mapped configuration registers.
Subsystem Vendor ID – RW – 16 bits – [PCI_Reg: 2Ch]
Field Name
Bits
Default
Description
Subsystem Vendor ID
15:0
0000h
This register is implemented as write-once register. Any
subsequent writes have no effect.
Subsystem ID – RW – 16 bits – [PCI_Reg: 2Dh]
Field Name
Bits
Default
Description
Subsystem ID
15:0
0000h
This register is implemented as write-once register. Any
subsequent writes have no effect.
Capabilities Pointer – R – 8 bits – [PCI_Reg: 34h]
Field Name
Bits
Default
Description
Capabilities Pointer
7:0
50h
This register indicates the offset for the capability pointer