TMS320F28375DPZP datasheet(199/226 Pages) TI

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9.11 Dual Code Security Module

The dual code security module (DCSM) prevents access to on-chip secure memories. The term “secure” means

access to secure memories and resources is blocked. The term “unsecure” means access is allowed; for

example, through a debugging tool such as Code Composer Studio™ (CSS).

The code security mechanism offers protection for two zones, Zone 1 (Z1) and Zone 2 (Z2). The security

implementation for both the zones is identical. Each zone has its own dedicated secure resource (OTP memory

and secure ROM) and allocated secure resource (CLA, LSx RAM, and flash sectors).

The security of each zone is ensured by its own 128-bit password (CSM password). The password for each zone

is stored in an OTP memory location based on a zone-specific link pointer. The link pointer value can be

changed to program a different set of security settings (including passwords) in OTP.

Note

THE CODE SECURITY MODULE (CSM) INCLUDED ON THIS DEVICE WAS DESIGNED TO

PASSWORD PROTECT THE DATA STORED IN THE ASSOCIATED MEMORY 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.

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TMS320F28379D, TMS320F28379D-Q1, TMS320F28378D, TMS320F28377D

TMS320F28377D-Q1, TMS320F28376D, TMS320F28375D, TMS320F28374D

SPRS880O – DECEMBER 2013 – REVISED FEBRUARY 2021

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TMS320F28377D-Q1 TMS320F28376D TMS320F28375D TMS320F28374D

TMS320F28375DPZP Datasheet(PDF) 199 Page - Texas Instruments