Interrupt Enable Register
| RHC | Region Hash Completed Interrupt Enable |
| RDM | Region Digest Mismatch Interrupt Enable |
| RBE | Region Bus Error Interrupt Enable |
| RWC | Region Wrap Condition detected Interrupt Enable |
| REC | Region End bit Condition Detected Interrupt Enable |
| RSU | Region Status Updated Interrupt Disable |
| URAD | Undefined Register Access Detection Interrupt Enable |