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c6748连接2个codec的音频配置方案?

ti的工程师:

请问一下,使用c6748的mcasp模块连接两个codec,codec用的是aic3106。DSP做主,提供2个codec帧时钟位时钟和主时钟,也同时接收两个codec的数据。

DSP的mcasp模块的slotnum,slotsize和wordsize应该怎么设置,因为同时接了两个codec是不是就不能用i2s格式传输了,要把dsp和codec的数据格式都改成tdm格式?