NH82801FBM S L89K Intel, NH82801FBM S L89K Datasheet - Page 671
NH82801FBM S L89K
Manufacturer Part Number
NH82801FBM S L89K
Description
Manufacturer
Intel
Datasheet
1.NH82801FBM_S_L89K.pdf
(786 pages)
Specifications of NH82801FBM S L89K
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18.2.37
18.2.38
Intel
®
I/O Controller Hub 6 (ICH6) Family Datasheet
SDLVI—Stream Descriptor Last Valid Index Register
(Intel
Memory Address: Input Stream[0]: HDBAR + 8Ch
Default Value:
SDFIFOW—Stream Descriptor FIFO Watermark Register
(Intel
Memory Address: Input Stream[0]: HDBAR + 8Eh
Default Value:
15:8
15:3
Bit
7:0
Bit
2:0
®
®
Reserved.
Last Valid Index — R/W. The value written to this register indicates the index for the last valid Buffer
Descriptor in BDL. After the controller has processed this descriptor, it will wrap back to the first
descriptor in the list and continue processing.
This field must be at least 1, i.e. there must be at least 2 valid entries in the buffer descriptor list
before DMA operations can begin.
This value should only modified when the RUN bit is 0.
Reserved.
FIFO Watermark (FIFOW) — R/W. Indicates the minimum number of bytes accumulated/free in the
FIFO before the controller will start a fetch/eviction of data.
010 = 8B
011 = 16B
100 = 32B (Default)
Others = Unsupported
NOTES:
1. When the bit field is programmed to an unsupported size, the hardware sets itself to the default
2. Software must read the bit field to test if the value is supported after setting the bit field.
High Definition Audio Controller—D27:F0)
High Definition Audio Controller—D27:F0)
value.
Input Stream[1]: HDBAR + ACh
Input Stream[2]: HDBAR + CCh
Input Stream[3]: HDBAR + ECh
Output Stream[0]: HDBAR + 10Ch
Output Stream[1]: HDBAR + 12Ch
Output Stream[2]: HDBAR + 14Ch
Output Stream[3]: HDBAR + 16Ch
0000h
Input Stream[1]: HDBAR + AEh
Input Stream[2]: HDBAR + CEh
Input Stream[3]: HDBAR + EEh
Output Stream[0]: HDBAR + 10Eh
Output Stream[1]: HDBAR + 12Eh
Output Stream[2]: HDBAR + 14Eh
Output Stream[3]: HDBAR + 16Eh
0004h
Intel
®
High Definition Audio Controller Registers (D27:F0)
Description
Description
Attribute:R/W
Size:
Attribute:R/W
Size:
16 bits
16 bits
671
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