Csm Password Match Flow - Texas Instruments Concerto F28M35 Series Technical Reference Manual

Code Security Module (CSM)
150
System Control and Interrupts
Figure 1-23. CSM Password Match Flow
START
Dummy Read of CSM PWL
of the secure zone, which
needs to be unsecure
Are CSM
PWL = All
Fs?
NO
Write the CSM Password of
that zone into CSMKEY(0/1/2/3)
registers
NO
Correct
Password?
YES
Zone Unsecure
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YES
SPRUH22I – April 2012 – Revised November 2019
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