分类： LINUX
2012-07-16 15:04:01
MX53板子上的HDMI音频调试，SIi9022ACNU, I2S和SPDIF输入设置
Audio Configuration
The audio subsystem can operate in S/PDIF or I2S mode, S/PDIF, I2S or DSD mode (DSD only SiI9136/9334), as selected by the host through TPI. In either case, the host determines which configurations are valid by reading the audio descriptors directly from the EDID.
Configuring Audio using S/PDIF
The S/PDIF audio subsystem selection is made by TPI control. Most operations thereafter are automatic.
S/PDIF Initialization and Operation
select SPDIF input mode using register bits 0x26[7:6],0x27.
Auto recognition audio rates.check the fs value,calculates N value accordingly whenever fs changes.
SiI9022A9024A-PR-1032-0[1].72-Lefeel.PDF
P36,37,38
PLL P53
