Memory devices, systems and methods employing command/address calibration

    公开(公告)号:US10120591B2

    公开(公告)日:2018-11-06

    申请号:US15962706

    申请日:2018-04-25

    Inventor: Young-Jin Jeon

    Abstract: During a command/address calibration mode, a memory controller may transmit multiple cycles of test patterns as signals to a memory device. Each cycle of test pattern signals may be transmitted at an adjusted relative phase with respect to a clock also transmitted to the memory device. The memory device may input the test pattern signals at a timing determined by the clock, such as rising and/or falling edges of the clock. The test pattern as input by the memory device may be sent to the memory controller to determine if the test pattern was successfully transmitted to the memory device during the cycle. Multiple cycles of test pattern transmissions are evaluated to determine a relative phase of command/address signals with respect to the clock for transmission during operation of the system.

    Memory devices, systems and methods employing command/address calibration
    15.
    发明授权
    Memory devices, systems and methods employing command/address calibration 有权
    使用命令/地址校准的存储器件,系统和方法

    公开(公告)号:US09076515B2

    公开(公告)日:2015-07-07

    申请号:US14504087

    申请日:2014-10-01

    Inventor: Young-Jin Jeon

    Abstract: During a command/address calibration mode, a memory controller may transmit multiple cycles of test patterns as signals to a memory device. Each cycle of test pattern signals may be transmitted at an adjusted relative phase with respect to a clock also transmitted to the memory device. The memory device may input the test pattern signals at a timing determined by the clock, such as rising and/or falling edges of the clock. The test pattern as input by the memory device may be sent to the memory controller to determine if the test pattern was successfully transmitted to the memory device during the cycle. Multiple cycles of test pattern transmissions are evaluated to determine a relative phase of command/address signals with respect to the clock for transmission during operation of the system.

    Abstract translation: 在命令/地址校准模式期间,存储器控制器可以将多个测试图案周期作为信号发送到存储器件。 测试模式信号的每个周期可以相对于也传送到存储器件的时钟以调整的相对相位传输。 存储器件可以在由时钟确定的定时(例如时钟的上升沿和/或下降沿)输入测试图形信号。 可以将由存储器件输入的测试图案发送到存储器控制器,以确定在该周期期间测试图案是否被成功发送到存储器件。 评估测试模式传输的多个周期,以确定命令/地址信号相对于系统操作期间传输的时钟的相对相位。

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