SPRUJC6A December 2024 – July 2025 AM2752-Q1 , AM2754-Q1
General Purpose Control Register Modules (and also Pad Configuration Register Modules) are organized into different partitions. Partitions can be locked to prevent unintended changes to the register value that might occur due to uncontrolled or malfunctioning software.
Each partition has two registers associated with partition locking - LOCKi_KICK0 and LOCKi_KICK1 registers are used for this purpose. A write is required first to the LOCKi_KICK0[31-1] KEY field and then to the LOCKi_KICK1[31-0] KEY field with exact data values to unlock the protection mechanism. Once released then all registers within Partition "i" having write permissions can be written to. The read only registers are still read only. An indication for unlocked Partition "i" is when the LOCKi_KICK0[0] UNLOCKED bit is set to 1h. When the protection mechanism is locked (indicated by LOCKi_KICK0[0] UNLOCKED = 0h) none of the registers within Partition "i" can be written to. They can only be read.
The key values for all partitions are:
Writing any other data value to either of these registers locks the protection mechanism and blocks any writes to the registers that reside in Partition "i".