Provides control and status information for Secure debug
| SBRSELEN | Controls whether the SBRSEL field or the current Security state of the processor selects which version of the memory-mapped Banked registers are accessed to the debugger |
| SBRSEL | If SBRSELEN is 1 this bit selects whether the Non-secure or the Secure version of the memory-mapped Banked registers are accessible to the debugger |
| CDS | This field indicates the current Security state of the processor |
| CDSKEY | Writes to the CDS bit are ignored unless CDSKEY is concurrently written to zero |