Exclusive Access Restriction Clarification

Hi,

The description in the Spec is a little vague on this. The requirements for a pair exclusive access are same id, same length, transaction can't be cacheable and control signals must be identical. Does this imply AWPROT and ARPROT have to be same for EA read and EA write? What if the AWPROT and ARPROT are different, should the device should return OKAY instead of EXOAKY?

Does anyone out there have any comments on this?

Thanks,

Ting