公开(公告)号：WO2017058301A1

公开(公告)日：2017-04-06

申请号：PCT/US2016/036362

申请日：2016-06-08

Applicant: SANDISK TECHNOLOGIES LLC

Inventor： KELNER, Vered ,  VISHNE, Gadi ,  KRAYF, Ravit

IPC: G06F3/06 ,  G06F21/00

CPC classification number: G06F3/0638 ,  G06F3/0611 ,  G06F3/0619 ,  G06F3/0635 ,  G06F3/064 ,  G06F3/0647 ,  G06F3/0659 ,  G06F3/0679 ,  G06F3/0688 ,  G06F12/1408 ,  G06F21/00 ,  G06F21/79 ,  G06F2212/402

Abstract: A system and method is disclosed for providing zero data in response to a host data read directed to a logical address that is not associated with valid data. The system may be a non-volatile memory system including non-volatile memory and a controller configured to determine whether a logical address in a read command is associated with valid data. The controller may be configured to generate, store in non-volatile memory and retrieve from that non-volatile memory a zero data entry. The controller may also be configured to include any associated encryption key or logical address in the generation of the zero data in order to satisfy data path protection and/or encryption requirements for the non- volatile memory system. Storage and retrieval of the zero data may be via the non-volatile memory array or only the data latches of the non-volatile memory.

Abstract translation: 公开了一种用于响应于定向到与有效数据不相关联的逻辑地址的主机数据读取来提供零数据的系统和方法。 该系统可以是非易失性存储器系统，其包括非易失性存储器和被配置为确定读取命令中的逻辑地址是否与有效数据相关联的控制器。 控制器可以被配置为生成，存储在非易失性存储器中并从该非易失性存储器检索零数据条目。 控制器还可以被配置为在生成零数据时包括任何相关联的加密密钥或逻辑地址，以便满足非易失性存储器系统的数据路径保护和/或加密要求。 零数据的存储和检索可以经由非易失性存储器阵列或只有非易失性存储器的数据锁存器。