LTC2325-16 About "tCYC" and "tREADOUT"

Hi,

I want to use LTC2325-16.
I have a question, please let me know.

The following timing chart is in the data sheet.

tREADOUT is a parameter that does not appear in electrical characteristics.
Also, since tCYC = tCNVH + tCONV, I don't know what this tREADOUT means.

The timing chart of the similar product LTC2323-16 is
It is as follows.
In this case, it is understandable that tCYC = tCNVH + tCONV.
Which is correct?

Best Regards,

Naohisa