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CS软件中的USB interface支持I2C fast, I2C standard，8bit SPI。
EVM user's guide中有描述使用SPI通讯的配置方法：To communicate to the TLV320AIC3254 using SPI, SW1 must be switched towards SPI and W14 must be set to 1-2 on the TLV320AIC3254EVM.
