Invention Application
- Patent Title: TIMING-DRIFT CALIBRATION
- Patent Title (中): 定时漂移校准
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Application No.: PCT/US2011060213Application Date: 2011-11-10
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Publication No.: WO2012082274A3Publication Date: 2012-08-16
- Inventor: FRANS YOHAN U , ELLIS WAYNE F , BANSAL AKASH
- Applicant: RAMBUS INC , FRANS YOHAN U , ELLIS WAYNE F , BANSAL AKASH
- Assignee: RAMBUS INC,FRANS YOHAN U,ELLIS WAYNE F,BANSAL AKASH
- Current Assignee: RAMBUS INC,FRANS YOHAN U,ELLIS WAYNE F,BANSAL AKASH
- Priority: US41558310 2010-11-19
- Main IPC: G11C7/22
- IPC: G11C7/22 ; G11C7/10
Abstract:
The disclosed embodiments relate to components of a memory system that support timing-drift calibration. In specific embodiments, this memory system contains a memory device (or multiple devices) which includes a clock distribution circuit and an oscillator circuit which can generate a frequency, wherein a change in the frequency is indicative of a timing drift of the clock distribution circuit. The memory device also includes a measurement circuit which is configured to measure the frequency of the oscillator circuit. Additionally, the memory system contains a memory controller which can transmit a request to the memory device to trigger the memory device to measure the frequency of the oscillator circuit. The memory controller is also configured to receive the measured frequency from the memory device and uses the measured frequency to determine the timing drift in the memory device.
Information query