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    • 2. 发明申请
    • THROTTLING SUPPORT FOR ROW-HAMMER COUNTERS
    • 滚动计数器的支持支持
    • US20140189228A1
    • 2014-07-03
    • US13730181
    • 2012-12-28
    • ZAIKA GREENFIELDTOMER LEVYSUNEETA SAH
    • ZAIKA GREENFIELDTOMER LEVYSUNEETA SAH
    • G11C11/406
    • G11C11/40607G06F13/1605G11C11/40603G11C11/40611
    • Throttling of memory access commands. Accesses to rows of a memory device are monitored for a timeframe. The timeframe is divided into at least two sub-frames. If the number of accesses for any of the rows during a first sub-frame exceeds a first threshold throttling accesses to the accessed row at a first rate. Not throttling accesses to the accessed row if the number of accesses to the accessed row does not exceed the first threshold. The first threshold is associated with risk of data corruption on a row physically adjacent to the accessed row. If a number of accesses for the accessed row during a second sub-frame exceeds a second threshold, throttling accesses to the accessed row at a second rate. Not throttling accesses to the accessed row if the number of accesses to the accessed row does not exceed the second threshold. The second threshold is greater than the first threshold. The second throttling rate is greater than the first throttling rate.
    • 调节内存访问命令。 在一段时间内监视访问存储设备的行。 时间框架被划分为至少两个子帧。 如果在第一子帧期间的任何行的访问次数超过第一阈值,则以第一速率限制对所访问的行的访问。 如果访问行的访问次数不超过第一个阈值,则不访问被访问的行。 第一个阈值与物理上与访问行相邻的行的数据损坏风险相关。 如果在第二子帧期间对所访问的行的访问次数超过第二阈值,则以第二速率限制对所访问的行的访问。 如果访问行的访问次数不超过第二个阈值,则不访问被访问的行。 第二阈值大于第一阈值。 第二节流率大于第一节流速率。