The TRCRSCTLR controls the trace resources
| SELECT | Selects one or more resources from the wanted group. One bit is provided per resource from the group |
| GROUP | Selects a group of resource |
| INV | Inverts the selected resources |
| PAIRINV | Inverts the result of a combined pair of resources. This bit is only implemented on the lower register for a pair of resource selectors |