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公开(公告)号：US20140351675A1
公开(公告)日：2014-11-27
申请号：US14456559
申请日：2014-08-11
Applicant: Micron Technology, Inc.
Inventor： Federico Tiziani , Giovanni Campardo , Massimo Iaculo , Claudio Giaccio , Manuela Scognamiglio , Danilo Caraccio , Ornella Vitale , Antonino Pollio
CPC classification number: G06F3/0625 , G06F1/3275 , G06F3/0634 , G06F3/0659 , G06F3/0679 , G06F11/10 , G06F11/1044 , G06F11/1068 , G06F11/1072 , G06F12/0246 , G06F13/1668 , G11C29/52 , Y02D10/14
Abstract: In various embodiments, a single virtualized error correcting code (ECC) NAND controller executes an ECC algorithm and manages a stack of NAND flash memories. The virtualized ECC NAND controller allows the host processor to drive the stack of flash memory devices as a single NAND chip while the controller redirects the data to the selected NAND memory device in the stack. In various embodiments, a controller manages a plurality of NAND memory devices. The controller provides power to a select one of the plurality of NAND memory devices at a time to conserve overall power consumption of the storage system.
Abstract translation: 在各种实施例中，单个虚拟化纠错码（ECC）NAND控制器执行ECC算法并管理NAND闪存堆栈。 虚拟化ECC NAND控制器允许主机处理器作为单个NAND芯片驱动闪存器件堆叠，同时控制器将数据重定向到堆栈中选择的NAND存储器件。 在各种实施例中，控制器管理多个NAND存储器件。 控制器一次为多个NAND存储器件中的一个选择一个供电，以节省存储系统的整体功耗。
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公开(公告)号：US20140351493A1
公开(公告)日：2014-11-27
申请号：US14350558
申请日：2014-04-08
Applicant: Micron Technology, Inc.
Inventor： Massimo Iaculo , Ornella Vitale , Antonino Pollio
IPC: G06F12/02
CPC classification number: G06F12/0246 , G06F2212/7211 , G11C16/349
Abstract: In accordance with some embodiments, wear leveling may be done based on the difference in age of discarded blocks and engaged blocks. Data is moved to an older discarded block from a younger engaged block. Two wear leveling bits may be used for each logical block, such that the wear leveling bits are used in alternating cycles.
Abstract translation: 根据一些实施例，可以基于废弃块和接合块的年龄差异来进行磨损平衡。 数据从较年轻的被动块移动到较旧的废弃块。 每个逻辑块可以使用两个损耗均衡位，使得在交替周期中使用损耗均衡比特。
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