NH82801DBSL8DE 869490 Intel, NH82801DBSL8DE 869490 Datasheet - Page 485
NH82801DBSL8DE 869490
Manufacturer Part Number
NH82801DBSL8DE 869490
Description
Manufacturer
Intel
Datasheet
1.NH82801DBSL8DE_869490.pdf
(587 pages)
Specifications of NH82801DBSL8DE 869490
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14.2.5
14.2.6
Intel
®
82801DB ICH4 Datasheet
x_PICB—Position In Current Buffer Register
I/O Address:
Default Value:
Lockable:
Software can read the registers at the offsets 08h, 0Ah, and 0Bh by performing a 32-bit read from
the address offset 08h. Software can also read this register individually by doing a single, 16-bit
read to offset 08h. Reads across DWord boundaries are not supported.
x_PIV—Prefetched Index Value Register
I/O Address:
Default Value:
Lockable:
Software can read the registers at the offsets 08h, 0Ah, and 0Bh by performing a 32-bit read from
the address offset 08h. Software can also read this register individually by doing a single, 8-bit read
to offset 0Ah. Reads across DWord boundaries are not supported.
15:0
7:5
4:0
Bit
Bit
Position In Current Buffer [15:0] — RO. These bits represent the number of samples left to be
processed in the current buffer. Once again, this means, the number of samples not yet read from
memory (in the case of reads from memory) or not yet written to memory (in the case of writes to
memory), irrespective of the number of samples that have been transmitted/received across AC-
link.
Hardwired to 0.
Prefetched Index Value [4:0] — RO. This field indicates which buffer descriptor in the list has been
prefetched. The bits in this register are also modulo 32 and roll over after they reach 31.
NABMBAR + 08h (PIPICB),
NABMBAR + 18h (POPICB),
NABMBAR + 28h (MCPICB)
MBBAR + 48h (MC2PICB)
MBBAR + 58h (PI2PICB)
MBBAR + 68h (SPPICB)
0000h
No
NABMBAR + 0Ah (PIPIV),
NABMBAR + 1Ah (POPIV),
NABMBAR + 2Ah (MCPIV)
MBBAR + 4Ah (MC2PIV)
MBBAR + 5Ah (PI2PIV)
MBBAR + 6Ah (SPPIV)
00h
No
Description
Description
AC ’97 Audio Controller Registers (D31:F5)
Attribute:
Size:
Power Well:
Attribute:
Size:
Power Well:
RO
16 bits
Core
RO
8 bits
Core
485
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