METHOD AND APPARATUS FOR IMPLEMENTING WRITE LEVELIZATION IN MEMORY SUBSYSTEMS

摘要

provides a method and apparatus for aligning clock signals and strobe signals in one set. In one embodiment, the memory controller includes a generator for generating each strobe signal and a clock generator, and each of the strobe signal to generate a clock signal. In addition, the memory controller, a phase restoring engine adapted to receive the error signal from a corresponding memory device further wherein, the error signal is the strobe signal for the clock signal for each of the plurality of cycles of said strobe signal carry the indication of the sort of error. The phase restoration engine includes an accumulator adapted to maintain a cumulative value which depends on the error indication for a plurality of cycles of said strobe signal. Said strobe signal generator is configured to control the delay related to the generation of said strobe signal according to the accumulated value. ;