Hi,
I am sorry, this is a location to discuss DSC for example MC56F83xx/MC56F84xxx, I am not familiar with original NXP product. I have searched the NXP home page, but I do not find any data sheet or RM about the saf7741.
I suggest you submit a new service request by the following procedure so that the other engineers can help you.
BR
XiangJun Rong
To submit your case into the new system, please follow below steps:
1) Go to http://www.nxp.com/support/sales-and-support:SUPPORTHOME.
2) On the bottom of the page under Submit New Issues, click Hardware & Software.
3) Register with your business email to access NXP technical online support.
4) A verification email will be sent to your account. Click the link embedded in that email to verify your access.
5) On the NXP online support page, select Contact Support from the top menu and click “submit a new case” to start the process.