METHOD AND APPARATUS FOR SYNCHRONIZING DATA BETWEEN DIFFERENT CLOCK DOMAINS IN A MEMORY CONTROLLER

摘要

The present invention provides method and apparatus for synchronizing data between different clock domains in a memory controller. In one embodiment, a memory controller is provided that includes a command decoder and synchronizing logic. The command decoder is operable to receive a command in accordance with a first clock domain. The synchronizing logic synchronizes the command to a second clock domain that is different from the first clock domain, and includes a first synchronization flop and a second synchronization flop operable to prevent metastability associated with synchronizing the command to the second clock domain.