DS90UB913A-Q1: How to do the setting

Yes. The host will still be able to communicate with far end camera even when PCLK is not there through I2C and through back-channel

Thanks

Vijay

Hi Ceekala,

Thanks a lot for your reply! To be more specific, do you know how to configure the register through I2C and back-channel? Alternative, do you have any document or E2E Q&A link for this case to share?

Thanks!

Dylan

Hi Dylan,

Are you asking how to configure registers so that you can talk to the 913 if PCLK is not available?  The 913 will switch to an internal oscillator if the PCLK is invalid and BC communication will still be available.

Regards,

Nick

Hi Darash,

Yep! BC communication will still be available, while I am not sure how to configure the I2C in the register?

Hi Dylan,

What are you trying to configure and what deserializer are you using?  If you have LOCK you should be able to communicate to the remote serialzier.  Make sure that the SER_ID and SER_ALIAS are set correctly so that you can communicate.

Regards,

Nick

Hi Darash,

The situation is like that:

When the sensor provides the 913 clock, it is already able to communicate. But there is a function, if the sensor wants to change to sleep mode, there is no clock provided to 913. When using Maxim's chip, before the sensor enters the sleep mode, its serial chip can be configured to generate a clock internally, so it can continue to work. I did not find a clear configuration method from TI's manual, and you need your support.

Thanks!

Dylan

Hello Dylan,

The internal clock is an always on clock. When the PCLK is no longer available the PLL will relock to the internal oscillator automatically. 

Regards,

Nick