AM5716: T_RTW field of EMIF_SDRAM_TIMING_1 register

Part Number:AM5716

Hi,

I try to figure out how the AM571x EMIF TOOL is setting the "T_RTW" bit field in the EMIF_SDRAM_TIMING_1 register.
To my understanding and after some research tRTW calculates as follows:

tRTW=tCCD+2CK+CL-CWL

If I change CL and/or CWL in the EMIF TOOL I expect that the T_RTW value in the EMIF_SDRAM_TIMING_1 register changes. But it always stays constant.
Also there is no possibility to set tCCD in the EMIF TOOL.

I use EMIF TOOL Revision 2.0.1.

Is this a bug in the EMIF TOOL?

Thanks and best regards,

Patrick