LP5036: I2C bus reset

Hi Koji,

Our expert is out of office and will reply to your questions once coming back. Thanks for your patience.

BR

Patrick

Hi Koji,

You can reset the I2C bus by configuring the RESET register 0x38.

BR, Jared

Jared-san,

Thank you for your support. Do 0x38 mean register reset? They would like to know I2C bus reset, how does LP5036 reset I2C bus communication? If they set stop condition, can LP5036 reset I2C bus and receive new start condition and communication?

Thanks,

Koji Ikeda

Hi Koji-san,

Our expert is out of office and will reply to your questions once coming back, thanks for your patience.

BR

Patrick

Hello Patrick-san,

Could you support? Could you tell me when you will get answer?

Thanks,

Koji Ikeda

Hi Koji,

Sorry to late reply, the pass few days are our National Day Holidays, hope you can understand.

For your question, LP5036 doesn't have external I2C reset pin, it can only reset by configuring the RESET register 0x38.

BR, Jared

Hi Koji,

One more advice, you can try to toggle the external signal of EN pin. I am not sure if the behavior can meet the customer's requirement since it will restart the chip not reset the I2C bus.

BR, Jared

Jared-san,

Thank you for your support. Please let me confirm, if customer has any trouble on I2C communication, is disable only method to resolve issue? In some other IC case, stop condition can reset the communication and new start condition can start new I2C communication.

I think that 0x38 reset register, not I2C bus.

Thanks,

Koji Ikeda

Jared-san,

Customer asks additional question. Could you support?

I2C Bus specification defines that I2C BUS can be reset by 9 clock pulse from master. Can LP5036 reset I2C bus by this way?

Thanks,

Koji Ikeda

Hi Koji,

If you don't mind, you can directly contact me via email. Here is my email address (jared-zhou@ti.com).

For this way to reset LP5036, I didn't do it before. Please give me some time to verify it.

BR, Jared