876784 Intel, 876784 Datasheet - Page 638
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876784
Manufacturer Part Number
876784
Description
Manufacturer
Intel
Datasheet
1.876784.pdf
(848 pages)
Specifications of 876784
Lead Free Status / RoHS Status
Compliant
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16.2.5
16.2.6
638
x_PICB—Position In Current Buffer Register
(Audio—D30:F2)
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 (Audio—D30:F2)
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
Hardwired to 0.
Prefetched Index Value [4:0] — RO. These bits represent 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.
Position In Current Buffer [15:0] — RO. These bits represent the number of
samples left to be processed in the current buffer. 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.
NABMBAR + 08h (PIPICB), Attribute:
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
AC ’97 Audio Controller Registers (D30:F2) (Desktop and Mobile Only)
Description
Description
Size:
Power Well:
Attribute:
Size:
Power Well:
Intel
RO
16 bits
Core
RO
8 bits
Core
®
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