Intel 6 SERIES CHIPSET - DATASHEET 01-2011 Datasheet page 731

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Integrated Intel High Definition Audio Controller Registers
17.1.2.43 SDFMT—Stream Descriptor Format Register
®
(Intel
Memory Address:Input Stream[0]: HDBAR + 92h
Default Value:
Bit
15 Reserved.
Sample Base Rate — R/W
14 0 = 48 kHz
1 = 44.1 kHz
Sample Base Rate Multiple — R/W
000 = 48 kHz, 44.1 kHz or less
001 = x2 (96 kHz, 88.2 kHz, 32 kHz)
13:11
010 = x3 (144 kHz)
011 = x4 (192 kHz, 176.4 kHz)
Others = Reserved.
Sample Base Rate Devisor — R/W.
000 = Divide by 1(48 kHz, 44.1 kHz)
001 = Divide by 2 (24 kHz, 22.05 kHz)
010 = Divide by 3 (16 kHz, 32 kHz)
10:8
011 = Divide by 4 (11.025 kHz)
100 = Divide by 5 (9.6 kHz)
101 = Divide by 6 (8 kHz)
110 = Divide by 7
111 = Divide by 8 (6 kHz)
7 Reserved.
Bits per Sample (BITS) — R/W.
000 =8 bits. The data will be packed in memory in 8-bit containers on 16-bit
001 =16 bits. The data will be packed in memory in 16-bit containers on 16-bit
010 = 20 bits. The data will be packed in memory in 32-bit containers on 32-bit
6:4
011 =24 bits. The data will be packed in memory in 32-bit containers on 32-bit
100 =32 bits. The data will be packed in memory in 32-bit containers on 32-bit
Others = Reserved.
Number of Channels (CHAN) — R/W. Indicates number of channels in each frame of the
stream.
0000 =1
3:0
0001 =2
........
1111 =16
Datasheet
High Definition Audio Controller—D27:F0)
Input Stream[1]: HDBAR + B2h
Input Stream[2]: HDBAR + D2h
Input Stream[3]: HDBAR + F2h
Output Stream[0]: HDBAR + 112h
Output Stream[1]: HDBAR + 132h
Output Stream[2]: HDBAR + 152h
Output Stream[3]: HDBAR + 172h
0000h
boundaries
boundaries
boundaries
boundaries
boundaries
Attribute:
Size:
Description
R/W
16 bits
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