876784 Intel, 876784 Datasheet - Page 636
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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
- Current page: 636 of 848
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16.2.3
16.2.4
636
x_LVI—Last Valid Index Register (Audio—D30:F2)
I/O Address:
Default Value:
Lockable:
Software can read the registers at offsets 04h, 05h and 06h simultaneously by
performing a single, 32-bit read from address offset 04h. Software can also read this
register individually by doing a single, 8-bit read to offset 05h.
NOTE: Reads across DWord boundaries are not supported.
x_SR—Status Register (Audio—D30:F2)
I/O Address:
Default Value:
Lockable:
Software can read the registers at offsets 04h, 05h and 06h simultaneously by
performing a single, 32-bit read from address offset 04h. Software can also read this
register individually by doing a single, 16-bit read to offset 06h. Reads across DWord
boundaries are not supported.
7:5
4:0
Bit
Hardwired to 0.
Last Valid Index [4:0] — R/W. This value represents the last valid descriptor in the
list. This value is updated by the software each time it prepares a new buffer and adds
it to the list.
NABMBAR + 05h (PILVI),
NABMBAR + 15h (POLVI),
NABMBAR + 25h (MCLVI)
MBBAR + 45h (MC2LVI)
MBBAR + 55h (PI2LVI)
MBBAR + 65h (SPLVI)
00h
No
NABMBAR + 06h (PISR),
NABMBAR + 16h (POSR),
NABMBAR + 26h (MCSR)
MBBAR + 46h (MC2SR)
MBBAR + 56h (PI2SR)
MBBAR + 66h (SPSR)
0001h
No
AC ’97 Audio Controller Registers (D30:F2) (Desktop and Mobile Only)
Description
Size:
Power Well:
Size:
Power Well:
Attribute:
Attribute:
Intel
R/W
8 bits
Core
R/WC, RO
16 bits
Core
®
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