20.11.6 System Services Availability when Accessed Externally and Device is Protected
External access: Access performed in the DSU address offset 0x100-0x1FFF range.
Internal access: Access performed in the DSU address offset 0x000-0x0FF range.
| Features | Availability From The External Address Range and Device is Protected |
|---|---|
| Chip-Erase command and status | Yes |
| CRC32 | Yes, only full array or full Data Flash section |
| CoreSight Compliant Device identification | Yes |
| Debug communication channels | Yes |
| STATUSA.CRSTEXT clearing | No (STATUSA.PERR is set when attempting to do so) |
| Testing of onboard memories (MBIST) | No |