AURIX™ MCU: Locking or disabling debug interfaces - KBA235788
Community Translation: AURIX™ MCU: デバッグインターフェースのロックまたは無効化 - KBA235788
For all AURIX™ devices, by default the On-Chip Debug System (OCDS) is disabled. To enable the OCDS module, the debug tools use a predefined pattern. You can secure the debug connection (DAP, DXCPL, and JTAG) by using a 256-bit password, which is evaluated during the startup software. If the password is incorrect, access to the tool is denied. For additional levels of security, use the Hardware Security Module (HSM).
For more details, see the "On-Chip Debug Support (OCDS)” section in the User’s manual.
Note: This KBA applies to the following series of AURIX™ MCUs:
- AURIX™ TC2xx series
- AURIX™ TC3xx series