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FAST TRANSITION FROM LOW-SPEED MODE TO HIGH-SPEED MODE IN HIGH-SPEED INTERFACES
FAST TRANSITION FROM LOW-SPEED MODE TO HIGH-SPEED MODE IN HIGH-SPEED INTERFACES
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机译:高速接口中从低速模式到高速模式的快速过渡
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摘要
Embodiments directed to a memory device and a memory controller that continue to operate in a low-power mode during the period required for analog timing circuitry to initialize and become usable, are described. During a low-speed to high-speed transition mode of operation for a high-speed interface, timing circuitry of the interface between the memory device and memory controller locks to a forward clock signal concurrent with the continued operation of the interface in low-speed mode. A reference clock signal configured to operate at a rate that provides both a high-speed mode and a low-speed mode and which is used as a single rate clock allows phase detection and correction circuitry to be disabled, thus allowing the idle period caused by a transition from low-speed mode to high-speed mode to be significantly reduced.
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