ICC_FLUSH=normal, CCHK=complete, CHKRES=pass
System Control.
| ICC_FLUSH | Code Cache Flush. This bit is used to flush the code caches and the instruction buffer of the Cortex-M4. 0 (normal): Normal Code Cache Operation 1 (flush): Code Caches and CPU instruction buffer are flushed |
| CCHK | Compute ROM Checksum. This bit is self-cleared when calculation is completed. Once set, software clearing this bit is ignored and the bit will remain set until the operation is completed. 0 (complete): No operation/complete. 1 (start): Start operation. |
| CHKRES | ROM Checksum Result. This bit is only valid when the checksum is done and CCHK0 bit is cleared… 0 (pass): ROM Checksum Correct. 1 (fail): ROM Checksum Fail. |
| OVR | Operating Voltage Range. |