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    • 1. 发明申请
    • DYNAMIC RAM PHY INTERFACE WITH CONFIGURABLE POWER STATES
    • 具有可配置电源状态的动态RAM PHY接口
    • US20120066445A1
    • 2012-03-15
    • US12910412
    • 2010-10-22
    • Shawn SearlesNicholas T. HumphriesBrian W. AmickRichard W. ReevesHanwoo ChoRonald L. Pettyjohn
    • Shawn SearlesNicholas T. HumphriesBrian W. AmickRichard W. ReevesHanwoo ChoRonald L. Pettyjohn
    • G06F12/00G11C5/14G11C7/22
    • G06F12/00G06F1/3275G06F13/1689G06F13/4072G06F13/4086Y02D10/14
    • A physical memory interface (Phy) and method of operating is disclosed. The Phy interface includes command and status registers (CSRs) configured to receive a first power context and second power context. Selection circuitry is configured to switch between the first and second power contexts. A plurality of adjustable delay elements are provided, each having a delay time responsive to the selected power context. A first set of CSRs configured may store the first power context and a second set of CSRs configured may store the second power context. The Phy interface may also include a plurality of drivers each having a selectable drive strength responsive to the selected power context. The Phy interface may also include a plurality of receivers each having a selectable termination impedance responsive to the selected power context. Switching between power contexts may result in adjusting of the delay elements, drive strength and/or termination impedance of one or more drivers/receivers.
    • 公开了物理存储器接口(Phy)和操作方法。 Phy接口包括被配置为接收第一功率上下文和第二功率上下文的命令和状态寄存器(CSR)。 选择电路被配置为在第一和第二电源上下文之间切换。 提供了多个可调延迟元件,每个延迟元件具有响应于所选功率上下文的延迟时间。 配置的第一组CSR可以存储第一功率上下文,并且配置的第二组CSR可以存储第二功率上下文。 Phy接口还可以包括多个驱动器,每个驱动器响应于所选择的功率上下文具有可选择的驱动强度。 Phy接口还可以包括多个接收器,每个接收器具有响应于所选择的功率上下文的可选择的终端阻抗。 在功率上下文之间切换可导致延迟元件的调整,一个或多个驱动器/接收器的驱动强度和/或终端阻抗。
    • 2. 发明授权
    • Dynamic RAM Phy interface with configurable power states
    • 动态RAM Phy接口具有可配置的电源状态
    • US08356155B2
    • 2013-01-15
    • US12910412
    • 2010-10-22
    • Shawn SearlesNicholas T. HumphriesBrian W. AmickRichard W. ReevesHanwoo ChoRonald L. Pettyjohn
    • Shawn SearlesNicholas T. HumphriesBrian W. AmickRichard W. ReevesHanwoo ChoRonald L. Pettyjohn
    • G06F12/00
    • G06F12/00G06F1/3275G06F13/1689G06F13/4072G06F13/4086Y02D10/14
    • A physical memory interface (Phy) and method of operating is disclosed. The Phy interface includes command and status registers (CSRs) configured to receive a first power context and second power context. Selection circuitry is configured to switch between the first and second power contexts. A plurality of adjustable delay elements are provided, each having a delay time responsive to the selected power context. A first set of CSRs configured may store the first power context and a second set of CSRs configured may store the second power context. The Phy interface may also include a plurality of drivers each having a selectable drive strength responsive to the selected power context. The Phy interface may also include a plurality of receivers each having a selectable termination impedance responsive to the selected power context. Switching between power contexts may result in adjusting of the delay elements, drive strength and/or termination impedance of one or more drivers/receivers.
    • 公开了物理存储器接口(Phy)和操作方法。 Phy接口包括被配置为接收第一功率上下文和第二功率上下文的命令和状态寄存器(CSR)。 选择电路被配置为在第一和第二电源上下文之间切换。 提供了多个可调延迟元件,每个延迟元件具有响应于所选功率上下文的延迟时间。 配置的第一组CSR可以存储第一功率上下文,并且配置的第二组CSR可以存储第二功率上下文。 Phy接口还可以包括多个驱动器,每个驱动器响应于所选择的功率上下文具有可选择的驱动强度。 Phy接口还可以包括多个接收器,每个接收器具有响应于所选择的功率上下文的可选择的终端阻抗。 在功率上下文之间切换可导致延迟元件的调整,一个或多个驱动器/接收器的驱动强度和/或终端阻抗。