Figure 3-2. 6-pin Adapter Connection
Be sure to unplug jumpers in-between JP307 and JP308 so the HW-I2C interface will not be used:
In order to use Embedded mode, please connect P2_6 of JP309 to P1_3 of JP402, P2_3 of JP309 to P1_2 of JP402.
Then IS2083BM can communicate with ST codec over SW I2C.
IS2083
Hardware Connection
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User Guide
DS50002892A-page 12