TMS320F28069: I2C RRDY status

Hi Linda,

The ways RRDY can be cleared are documented in the TRM, snippet from I2CSTR register below:

Best,

Kevin

Hello Kevin,

Thank you for your reply. Customer is asking what will cause below exception that RRDY will not be cleared to occur:

Exception: The ARDY, RRDY, and XRDY bits in I2CSTR are not cleared when I2CISRC is read.

Would you please help again? Thanks!

Best Regards,

Linda

Hello Linda,

Kevin is currently out of office.  He should get back to you at the end of the week. 

Thank you for your patience.

Lori

Hi Linda,

I better understand the question now. I think there's a misunderstanding of the TRM sentence below.

Linda Zhang84708 said:

Exception: The ARDY, RRDY, and XRDY bits in I2CSTR are not cleared when I2CISRC is read.

This means that ARDY, RRDY, and XRDY will never be cleared when I2CISRC is read. The only ways RRDY can be cleared are documented in the RRDY register description, attached in my first reply. I hope that clears up the confusion.

Best,

Kevin