Hi,

The manual mentions that the Clock and Data lines for I2C devices can be made either open-collector or bipolar. Open-collector requires a 4.7K pull-up resistor on the Clock and Data lines, and bipolar requires DEFINE I2C_SCLOUT 1.

What is the difference between each option?

Is there a performance difference?

Can you mix open-collector and bipolar on the same mcu?

Robert