Sampling-based read enabling window generation method

Abstract

Systems and methods are herein disclosed that relate to generating read enabling windows in a multi-rank memory system that includes a memory controller connected to a plurality of memory ranks via a shared physical channel. The systems and methods disclosed herein provide for opening and closing read enabling windows for a memory controller in response to processing of data strobe signals output by a memory rank connected to the memory controller. By processing of the data strobe signals, a preamble can be detected that precedes a data transmission from a memory rank to the memory controller and a post-amble that follows the data transmission can also be detected. Detection of the preamble triggers opening of the read enabling window, and detection of the post-amble triggers closing of the read enabling window.