Controls the operation of watchpoint comparator 0
| MATCH | Controls the type of match generated by this comparator |
| ACTION | Defines the action on a match. This field is ignored and the comparator generates no actions if it is disabled by MATCH |
| DATAVSIZE | Defines the size of the object being watched for by Data Value and Data Address comparators |
| MATCHED | Set to 1 when the comparator matches |
| ID | Identifies the capabilities for MATCH for comparator *n |