SIR System Initialization Registers. 0x40000400 read-only 0x00 0x400 registers SISTAT System Initialization Status Register. 0x00 read-only MAGIC Magic Word Validation. This bit is set by the system initialization block following power-up. 0 1 read-only read magicNotSet Magic word was not set (OTP has not been initialized properly). 0 magicSet Magic word was set (OTP contains valid settings). 1 CRCERR CRC Error Status. This bit is set by the system initialization block following power-up. 1 1 read-only read noError No CRC errors occurred during the read of the OTP memory block. 0 error A CRC error occurred while reading the OTP. The address of the failure location in the OTP memory is stored in the ERRADDR register. 1 ERRADDR Read-only field set by the SIB block if a CRC error occurs during the read of the OTP memory. Contains the failing address in OTP memory (when CRCERR equals 1). 0x04 read-only ERRADDR 0 32 FSTAT funcstat register. 0x100 read-only FPU FPU Function. 0 1 no 0 yes 1 NMI NMI function. 11 1 no 0 yes 1 SFES SFES function. 12 1 no 0 yes 1 SFSTAT secfuncstat register. 0x104 read-only TRNG TRNG function. 2 1 no 0 yes 1 AES AES function. 3 1 no 0 yes 1 SHA SHA function. 4 1 no 0 yes 1