MULTI-WIRE OPEN-DRAIN LINK WITH DATA SYMBOL TRANSITION BASED CLOCKING

摘要

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 opendrain link by determining a transition in a signal received from the multi-wire opendrain 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.