MA35D1有硬件OTP功能，可以存储其中的程序数据进行加密。
Chip-level Storage Security
The MA35D1 series provides Key Store for key management and write-protected OTP (One-Time
Programmable) memory for secret key or sensitive data storage to prevent tamper. Key Store and OTP
memory can be accessed by the cryptographic engines, retrieving secret keys without the need of CPU
access to reduce further risk of leakage of the sensitive cryptographic keys.
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