STAC9250 Datasheet, PDF (40/137 Pages) Integrated Device Technology – TWO-CHANNEL HD AUDIO CODEC WITH MODEM & DUAL DIGITAL MICROPHONE INTERFACES

STAC9250/9251
TWO-CHANNEL HD AUDIO CODEC WITH MODEM & DUAL DIGITAL MICROPHONE INTERFACES
PC AUDIO
Bit
[10:8]
[7]
[6:4]
[3:0]
Table 49. DAC0Cnvtr Frmt Command Response Format
Bitfield Name
RW
Reset
Description
RateDiv
Sample Base Rate Divisor
000 = Divide by 1
001 = Divide by 2
010 = Divide by 3
RW
0x0
011 = Divide by 4
100 = Divide by 5
101 = Divide by 6
110 = Divide by 7
111 = Divide by 8
Rsvd1
R
0x0
Reserved
NumBits
Bits per Sample:
000 = 8 bits
RW
0x3
001 = 16 bits
010 = 20 bits
011 = 24 bits
100-111 = Reserved
NumChan
Number of Channels in each frame of the
stream.
RW
0x1
0000 = 1 channel
0001 = 2 channels
...
1111 = 16 channels
5.6.2. DAC0Cnvtr WCap
Get
Table 50. DAC0Cnvtr WCap Command Verb Format
Verb ID
Payload
F00
09
Response
See bitfield table
Bit
[31:24]
[23:20]
[19:16]
[15:12]
Table 51. DAC0Cnvtr WCap Command Response Format
Bitfield Name
RW
Reset
Description
Rsvd2
R
0x0
Reserved
Type
R
0x0
Widget type = Audio Output
Delay
R
0xD
Number of sample delays through widget
Rsvd1
R
0x0
Reserved
IDT™
40
TWO-CHANNEL HD AUDIO CODEC WITH MODEM & DUAL DIGITAL MICROPHONE INTERFACES
STAC9250/9251
V 1.1 102706