Apparatus, method and system for performing successive writes to a bank of a dynamic random access memory

    公开(公告)号:US10121532B2

    公开(公告)日:2018-11-06

    申请号:US15640250

    申请日:2017-06-30

    Abstract: Techniques and mechanisms to provide write access to a memory device. In an embodiment, a memory controller sends commands to a memory device which comprises multiple memory banks. The memory controller further sends a signal specifying that the commands include back-to-back write commands each to access the same memory bank. In response to the signal, the memory device buffers first data of a first write command, wherein the first data is buffered at least until the memory device receives second data of a second write command. Error correction information is calculated for a combination of the first data and second data, and the combination is written to the memory bank. In another embodiment, buffering of the first data and combining of the first data with the second data is performed, based on the signal from the memory controller, in lieu of read-modify-write processing of the first data.

    Performance of additional refresh operations during self-refresh mode

    公开(公告)号:US09721640B2

    公开(公告)日:2017-08-01

    申请号:US15184944

    申请日:2016-06-16

    CPC classification number: G11C11/40615 G11C11/4074 G11C2211/4067

    Abstract: Embodiments are generally directed to performance of additional refresh operations during self-refresh mode. An embodiment of a memory device includes one or more memory banks, a mode register set, the mode register set including a first set of mode register bits, and a control logic to provide control operations for the memory device, the operations including refresh operations for the one or more memory banks in a refresh credit mode. The control logic is to perform one or more extra refresh cycles in response to receipt of a self-refresh command, the self-refresh command to provide current refresh status information, and is to store information in the first set of mode register bits regarding a modified refresh status after the performance of the one or more extra refresh cycles.

    EXTRACTING SELECTIVE INFORMATION FROM ON-DIE DYNAMIC RANDOM ACCESS MEMORY (DRAM) ERROR CORRECTION CODE (ECC)
    68.
    发明申请
    EXTRACTING SELECTIVE INFORMATION FROM ON-DIE DYNAMIC RANDOM ACCESS MEMORY (DRAM) ERROR CORRECTION CODE (ECC) 有权
    从片上动态随机访问存储器(DRAM)提取选择信息错误修正代码(ECC)

    公开(公告)号:US20160283318A1

    公开(公告)日:2016-09-29

    申请号:US14670413

    申请日:2015-03-27

    Abstract: Error correction in a memory subsystem includes a memory device generating internal check bits after performing internal error detection and correction, and providing the internal check bits to the memory controller. The memory device performs internal error detection to detect errors in read data in response to a read request from the memory controller. The memory device selectively performs internal error correction if an error is detected in the read data. The memory device generates check bits indicating an error vector for the read data after performing internal error detection and correction, and provides the check bits with the read data to the memory controller in response to the read request. The memory controller can apply the check bits for error correction external to the memory device.

    Abstract translation: 存储器子系统中的错误校正包括在执行内部错误检测和校正之后产生内部校验位的存储器件,以及向内存控制器提供内部校验位。 存储器件执行内部错误检测以响应于来自存储器控制器的读取请求来检测读取数据中的错误。 如果在读取的数据中检测到错误,则存储器件选择性地执行内部纠错。 在执行内部错误检测和校正之后,存储器件产生指示读取数据的错误向量的校验位,并且响应于读取请求将校验位与读取的数据提供给存储器控制器。 存储器控制器可以将校验位应用于存储器件外部的纠错。

    METHOD, APPARATUS AND SYSTEM FOR RESPONDING TO A ROW HAMMER EVENT
    69.
    发明申请
    METHOD, APPARATUS AND SYSTEM FOR RESPONDING TO A ROW HAMMER EVENT 有权
    方法,设备和系统,用于响应一个ROW HAMMER事件

    公开(公告)号:US20160225434A1

    公开(公告)日:2016-08-04

    申请号:US15011286

    申请日:2016-01-29

    Abstract: Techniques and mechanisms to facilitate an operational mode of a memory device to prepare for a targeted refresh of a row in memory. In an embodiment, the memory device performs one or more operations while in the mode to prepare for a future command from a memory controller, the command to implement, at least in part, a targeted refresh of a row in a first bank of the memory device. Prior to such a command, the memory device services another command from the memory controller. In another embodiment, servicing the other command includes the memory device accessing a second bank of the memory device while the memory device operates in the mode, and before completion of an expected future targeted row refresh.

    Abstract translation: 促进存储器设备的操作模式以准备存储器中的行的目标刷新的技术和机制。 在一个实施例中,存储器装置在处于来自存储器控制器的未来命令的模式中执行一个或多个操作,该命令至少部分地实现存储器的第一存储体中的行的目标刷新 设备。 在这样的命令之前,存储器设备从存储器控制器服务另一命令。 在另一个实施例中,服务另一个命令包括存储设备访问存储器设备的第二组,同时存储设备在模式下操作,并且在预期的未来目标行刷新完成之前。

    DISABLING A COMMAND ASSOCIATED WITH A MEMORY DEVICE
    70.
    发明申请
    DISABLING A COMMAND ASSOCIATED WITH A MEMORY DEVICE 有权
    禁用与存储设备相关的命令

    公开(公告)号:US20150277790A1

    公开(公告)日:2015-10-01

    申请号:US14230338

    申请日:2014-03-31

    Abstract: In an embodiment, a memory device may contain device processing logic and a mode register. The mode register may a register that may specify a mode of operation of the memory device. A field in the mode register may hold a value that may indicate whether a command associated with the memory device is disabled. The value may be held in the field until either the memory device is power-cycled or reset. The device processing logic may acquire an instance of the command. The device processing logic may determine whether the command is disabled based on the value held by the mode register. The device processing logic may not execute the instance of the command if the device processing logic determines the command is disabled. If the device processing logic determines the command is not disabled, the device processing logic may execute the instance of the command.

    Abstract translation: 在一个实施例中,存储器设备可以包含设备处理逻辑和模式寄存器。 模式寄存器可以是可以指定存储器件的操作模式的寄存器。 模式寄存器中的字段可以保存可以指示与存储器设备相关联的命令是否被禁用的值。 该值可以保持在现场,直到存储器件被上电或复位为止。 设备处理逻辑可以获取命令的实例。 设备处理逻辑可以基于模式寄存器保持的值来确定该命令是否被禁用。 如果设备处理逻辑确定该命令被禁用,则设备处理逻辑可能不执行该命令的实例。 如果设备处理逻辑确定命令未被禁止,则设备处理逻辑可以执行该命令的实例。

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