Cirrus Logic AN298 - Manual (Page 26)

26 AN298RC14
6.4 PCM Module Notes
6.4 PCM Module Notes
The following are the possible PCM input modes:
• Stereo Mode: Stereo PCM into DAI_D4. 2 Channel Mode set in IO_CONFIG in the OS Manager.
• Multi-channel Mode: PCM into DAI_D0 thru DAI_D3. Multi-Channel Mode set in IO_CONFIG in the OS Manager.
Stereo and Multi-channel input modes above are mutually exclusive and must be configured prior to runtime
(pre-kick-start). At runtime, switching between modes is not allowed.
Table 6-2. Valid IO_BUFF_*_SOURCE Values
Value Source (multichannel mode)
Source
(Stereo mode)
0 DAI1_D0 Left DAI Left
1 DAI1_D0 Right DAI Right
2 DAI1_D1 Left None
3 DAI1_D1 Right None
4 DAI1_D2 Left None
5 DAI1_D2 Right None
6 DAI1_D3 Left None
7 DAI1_D3 Right None
8 DAI1_D4 Left None
9 DAI1_D4 Right None
10 DAI2_D0 Left None
11 DAI2_D0 Right None
0x08000000 None None