NH82801HBM S LB9A Intel, NH82801HBM S LB9A Datasheet - Page 693

• Manufacturer Part Number: NH82801HBM S LB9A
• Description: CONTROLLER HUB, ICH8M, I/O, 82801HBM
• Manufacturer: Intel

Specifications of NH82801HBM S LB9A

• Power Dissipation Pd: 2.4W
• Digital Ic Case Style: BGA
• No. Of Pins: 676
• Pci Bus Type: I/O Controller Hub
• Pci Express Base Spec: PCIe 1.1
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Intel
17.2.42
Intel
®
®
ICH8 Family Datasheet
High Definition Audio Controller Registers (D27:F0)
SDFIFOS—Stream Descriptor FIFO Size Register
(Intel
Memory Address:Input Stream[0]: HDBAR + 90h Attribute:
Default Value:
15:8
7:0
Bit
Reserved.
FIFO Size — RO (Input stream), R/W (Output stream). This field indicates the
maximum number of bytes that could be fetched by the controller at one time. This is
the maximum number of bytes that may have been DMA’d into memory but not yet
transmitted on the link, and is also the maximum possible value that the PICB count
will increase by at one time.
The value in this field is different for input and output streams. It is also dependent on
the Bits per Samples setting for the corresponding stream. Following are the values
read/written from/to this register for input and output streams, and for non-padded
and padded bit formats:
Output Stream R/W value
NOTES:
1.
2.
3.
Input Stream RO value
NOTE: The default value is different for input and output streams, and reflects the
®
77h = 120B
7Fh = 128B
BFh = 192B
FFh = 256B
9Fh = 160B
0Fh = 16B
1Fh = 32B
3Fh = 64B
High Definition Audio Controller—D27:F0)
Value
Value
All other values not listed are not supported.
When the output stream is programmed to an unsupported size, the hardware
sets itself to the default value (BFh).
Software must read the bit field to test if the value is supported after setting the
bit field.
default state of the BITS fields (in Stream Descriptor Format registers) for the
corresponding stream.
Input Stream[1]: HDBAR + B0h Output:
Input Stream[2]: HDBAR + D0h
Input Stream[3]: HDBAR + F0h
Output Stream[0]: HDBAR + 110h
Output Stream[1]: HDBAR + 130h
Output Stream[2]: HDBAR + 150h
Output Stream[3]: HDBAR + 170h
Input Stream: 0077h
Output Stream: 00BFh
8, 16, 32 bit Input Streams
20, 24 bit Input Streams
8, 16, 20, 24, or 32 bit Output Streams
8, 16, 20, 24, or 32 bit Output Streams
8, 16, 20, 24, or 32 bit Output Streams
8, 16, 20, 24, or 32 bit Output Streams
Input Streams
8, 16, or 32 bit Output Streams
20, 24 bit Output Streams
Output Streams
Description
Size:
16 bits
Input: RO
R/W
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