NHE6300ESB S L7XJ Intel, NHE6300ESB S L7XJ Datasheet - Page 555

• Manufacturer Part Number: NHE6300ESB S L7XJ
• Manufacturer: Intel

Specifications of NHE6300ESB S L7XJ

• Lead Free Status / RoHS Status: Compliant

13—Intel
13.1.8
13.1.9
13.1.10 Offset 10 - 13h: NAMBAR—Native Audio
November 2007
Order Number: 300641-004US
Bits
Bits
Default Value:
Default Value:
7:0
7:0
Table 467. Offset 0Bh: BCC—Base Class Code Register (Audio—D31:F5)
Table 468. Offset 0Eh: HEDT—Header Type Register (Audio—D31:F5)
Lockable:
Lockable:
Note: The tertiary codec cannot be addressed through this address space. The tertiary space
Device:
Device:
®
Offset:
Offset:
6300ESB ICH
Header Type Value
Base Class Code
Offset 0Bh: BCC—Base Class Code Register
(Audio—D31:F5)
Offset 0Eh: HEDT—Header Type Register (Audio—
D31:F5)
Mixer Base Address Register (Audio—D31:F5)
The Native PCI Mode Audio function uses PCI Base Address register 1 to request a
contiguous block of I/O space that is to be used for the Native Audio Mixer software
interface. The mixer requires 256 bytes of I/O space. This 256 bytes space is divided
into 128 bytes for the primary codec (offsets 00-7Fh) and 128 bytes for the secondary
codec (offsets 80-FFh). Access to these registers will be decoded by the AC’97
controller and forwarded over the AC-link to the codec. The codec will then respond
with the register value.
In the case of split codec implementation, accesses to the different codecs are
differentiated by the controller by using address offsets 00h - 7Fh for the primary codec
and address offsets 80h - FEh for the secondary codec.
is only available from the new MMBAR register. This register powers up as read only
and only becomes writeable when the IOSE bit in offset 41h is set.
For descriptions of these I/O registers, refer to the AC’97 specification.
31
0Bh
04H
No
Name
31
0Eh
00h
No
Name
04h = Multimedia device
Hardwired to 00h.
Power Well:
Power Well:
Description
Description
Attribute:
Attribute:
Function:
Function:
Size:
Size:
5
Read-Only
8-bit
Core
5
Read-Only
8-bit
Core
Intel
®
6300ESB I/O Controller Hub
Access
Access
RO
555
DS