在区域火灾报警控制器中，FM 31256芯片的非易失性数据存储器、实时时钟、看门狗等功能，增强系统可靠性。
The nonvolatile data memory, real-time clock, and watchdog functions of FM31256 chip were adopted by region fire alarm and control device to improve the system reliability.
它是永久或非易失性存储，如软盘上存储的数据。
It is permanent or nonvolatile storage, such as the data stored on diskettes.
数据的非易失性安全存储；
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