Invention Grant
US09374216B2 Multi-wire open-drain link with data symbol transition based clocking 有权
多线开漏链路,具有基于数据符号转换的时钟

Multi-wire open-drain link with data symbol transition based clocking
Abstract:
A method, an apparatus, and a computer program product are described. The apparatus generates a receive clock signal for receiving data from a multi-wire open-drain link by determining a transition in a signal received from the multi-wire open-drain link, generating a clock pulse responsive to the transition, delaying the clock pulse by a preconfigured first interval if the transition is in a first direction, and delaying the clock by a preconfigured second interval if the transition is in a second direction. The preconfigured first and/or second intervals are configured based on a rise time and/or a fall time associated with the communication interface and may be calibrated by measuring respective delays associated with clock pulses generated for first and second calibration transitions.
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