Pre-Production
WM8850
00h
01h
02h
03h
04h
05h
06h
07h
08h
09h
0Ah
0Bh
0Ch
0Dh
0Eh
0Fh
10h
11h
12h
13h
14h
15h
16h
17h
DAC3 AUDIO OUTPUT CONVERTER WIDGET (NID = 08H)
STREAM FORMAT VERB
Verb ID
Ah
Payload [15:0]
0000h
Response[31:0]
Get
Set
Bits [31:0] in the table below
00000000h
2h
Bits [15:0] in the table below
Bit
Bitfield Name
Rsvd
RW
R
Default
0000h
0h
Description
[31:16]
[15]
Reserved
Type
R
Indicates the widget supports only PCM streams
Used to set the base rate frequency:
0 = 48 kHz
[14]
Base
RW
0
1 = 44.1 kHz
[13:11]
Mult
RW
RW
0h
0h
Used to set the base rate multiplication factor:
0h = x1 (48kHz, 44.1kHz or less)
1h = x2 (96kHz, 88.2kHz, 32kHz)
2h = Reserved
3h = x4 (192kHz, 176.4kHz)
4h-7h = Reserved
[10:8]
Div
Used to set the base rate division factor:
0h = divide by 1 (48kHz, 44.1kHz)
1h = divide by 2 (24kHz, 22.05kHz)
2h = divide by 3 (16kHz, 32kHz)
3h = divide by 4 (11.025kHz)
4h = Reserved
5h = divide by 6 (8kHz)
6h = Reserved
7h = Reserved
[7]
Rsvd
Bits
R
0
Reserved
[6:4]
RW
3h
Bits per Sample:
0h = Reserved
1h = 16 bits
2h = 20 bits
3h = 24 bits
4h = 32 bits (Float 32)
5h-7h = Reserved
[3:0]
Chan
RW
1h
Number of Channels in each frame of the stream:
0h = 1 channel
1h = 2 channels
2h = 3 channels
3h = 4 channels
4h = 5 channels
5h = 6 channels
6h-Fh = reserved
Note: When the internal path between the S/PDIF Rx node to the DAC1, DAC2 and DAC3 nodes is active, Mult, Base & Div
become read only and are programmed by the S/PDIF In node to match the incoming sample rate.
PP, April 2011, Rev 3.2
133
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
