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TLV320DAC3101 耳机插入偵測

請問,

硬件目前我們是phone jack上有一pin接到DAC3101的VOL/MICDET.

軟件的部分需要設定那些寄存器 & 流程可以實現以下功能.

在不接入耳机时喇叭出声音,接入耳机时只有耳机出声音.

軟件 & 硬件上 應該怎麼設計? 謝謝!