ISO1641: is somehow more robust for applications that do not need the bidirectional clock vs ISO1640

Tool/software:

e2e, 

I missed we couldn't support clock stretching with the ISO1641BDR and would appreciate some input on whether the ISO1641BDR is 

somehow more robust for applications that do not need the bidirectional 

clock than ISO1640, or whether it offers no benefits over the bidirectional part even 

when we don't need the bidirectional operation.”

Thank you,

Adam