JAJSFZ4E March 2009 – August 2018 TMS320C28341 , TMS320C28342 , TMS320C28343 , TMS320C28344 , TMS320C28345 , TMS320C28346
PRODUCTION DATA.
デバイスごとのパッケージ図は、PDF版データシートをご参照ください。
The 128-bit password locations on these devices will always read back 0xFFFF. To preserve compatibility with other C28x designs with code security, the password locations at 0x33FFF8–0x33FFFF must be read after a device reset; otherwise, certain memory locations will be inaccessible. The Boot ROM code performs this read during start-up. If during debug the Boot ROM is bypassed, then it is the responsibility of the application software to read the password locations after a reset.
Custom Encryption: Activating the Code Security Module (CSM) and Emulation Code Security Logic (ECSL)
Custom secure versions of these devices enable the CSM and ECSL logic. In the custom version, the 128-bit password locations are set to a customer-chosen value, activating the Code Security Module (CSM), which protects the Hx RAM memories from unauthorized access. Additionally, a TI-generated AES decryption routine is embedded into an on-chip secure ROM, providing a method to secure application code that is stored externally. Requests for custom secure versions are not accepted by TI anymore.
CODE SECURITY MODULE DISCLAIMER
THE CODE SECURITY MODULE (CSM) INCLUDED ON THIS DEVICE WAS DESIGNED TO PASSWORD PROTECT THE DATA STORED IN THE ASSOCIATED MEMORY (Hx RAM) AND IS WARRANTED BY TEXAS INSTRUMENTS (TI), IN ACCORDANCE WITH ITS STANDARD TERMS AND CONDITIONS, TO CONFORM TO TI'S PUBLISHED SPECIFICATIONS FOR THE WARRANTY PERIOD APPLICABLE FOR THIS DEVICE.
TI DOES NOT, HOWEVER, WARRANT OR REPRESENT THAT THE CSM CANNOT BE COMPROMISED OR BREACHED OR THAT THE DATA STORED IN THE ASSOCIATED MEMORY CANNOT BE ACCESSED THROUGH OTHER MEANS. MOREOVER, EXCEPT AS SET FORTH ABOVE, TI MAKES NO WARRANTIES OR REPRESENTATIONS CONCERNING THE CSM OR OPERATION OF THIS DEVICE, INCLUDING ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
IN NO EVENT SHALL TI BE LIABLE FOR ANY CONSEQUENTIAL, SPECIAL, INDIRECT, INCIDENTAL, OR PUNITIVE DAMAGES, HOWEVER CAUSED, ARISING IN ANY WAY OUT OF YOUR USE OF THE CSM OR THIS DEVICE, WHETHER OR NOT TI HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. EXCLUDED DAMAGES INCLUDE, BUT ARE NOT LIMITED TO LOSS OF DATA, LOSS OF GOODWILL, LOSS OF USE OR INTERRUPTION OF BUSINESS OR OTHER ECONOMIC LOSS.