AMD SB600 User Manual

Page 229

Advertising
background image


©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

Advertising