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1. 发明申请

US20090089526A1 MEMORY DEVICES WITH DATA PROTECTION 有权
标题翻译：具有数据保护功能的存储器件
公开(公告)号：US20090089526A1
公开(公告)日：2009-04-02
申请号：US11863254
申请日：2007-09-28
申请人： YU-LAN KUO , CHUN-YI LEE , KUEN-LONG CHANG , CHUN-HSIUNG HUNG
发明人： YU-LAN KUO , CHUN-YI LEE , KUEN-LONG CHANG , CHUN-HSIUNG HUNG
IPC分类号： G06F13/00
CPC分类号： G11C8/20 , G06F21/79 , G11C16/22
摘要： A memory device comprises a memory array, a status register coupled with the memory array, and a security register coupled with the memory array and the status register. The memory array contains a number of memory blocks configured to have independent access control. The status register includes at least one protection bit indicative of a write-protection status of at least one corresponding block of the memory blocks that corresponds to the protection bit. The security register includes at least one register-protection bit. The register-protection bit is programmable to a memory-protection state for preventing a state change of at least the protection bit of the status register. The register-protection bit is configured to remain in the memory-protection state until the resetting of the memory device.
摘要翻译：存储器件包括存储器阵列，与存储器阵列耦合的状态寄存器，以及与存储器阵列和状态寄存器耦合的安全寄存器。存储器阵列包含被配置为具有独立访问控制的多个存储器块。状态寄存器包括至少一个保护位，指示对应于保护位的存储器块的至少一个相应块的写保护状态。安全寄存器包括至少一个寄存器保护位。寄存器保护位可编程为存储器保护状态，以防止至少状态寄存器的保护位的状态改变。寄存器保护位被配置为保持存储器保护状态，直到存储器件的复位。

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