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    • 7. 发明授权
    • Memory system having flash memory where a one-time programmable block is included
    • 具有闪存的存储器系统,其中包括一次性可编程块
    • US07031188B2
    • 2006-04-18
    • US10990307
    • 2004-11-15
    • Chul-Ho LeeHyun-Duk ChoChang-Rae Kim
    • Chul-Ho LeeHyun-Duk ChoChang-Rae Kim
    • G11C16/04
    • G11C16/22G11C2216/26
    • A memory system includes a flash memory device and an interface device. The flash memory device includes a one-time programmable block where protection data information is stored in a predetermined region, and the interface device includes a register for storing one-time programmable lock status information to indicate whether the one-time programmable block is programmed. When a program/erase command is applied externally in a one-time programmable mode, the interface device having the one-time programmable lock status information indicates whether the one-time programmable block is programmed. If the one-time programmable lock status information indicates that the one-time programmable block is programmed, the interface device cuts off an external access to the one-time programmable block.
    • 存储器系统包括闪存器件和接口器件。 闪存装置包括保护数据信息存储在预定区域中的一次性可编程块,并且接口装置包括用于存储一次性可编程锁定状态信息的寄存器,以指示一次性可编程块是否被编程。 当在一次性可编程模式中外部应用编程/擦除命令时,具有一次性可编程锁定状态信息的接口装置指示一次性可编程块是否被编程。 如果一次性可编程锁定状态信息指示一次性可编程块被编程,则接口设备切断对一次性可编程块的外部访问。