Abstract: A memory controller and a physical interface layer may accommodate multiple memory types. In some examples, the memory controller and/or PHY may include a register that includes operating parameters for multiple operating modes. Different operating modes may be compatible with different memory types. In some examples, the memory controller and physical interface may be included in a system for testing multiple memory types. The system may provide multiple interfaces for communicating with the memory. The different communication types may be used for performing different tests and/or simulating different types of devices that may utilize the memory.

Abstract: Immersion-type vacuum countergravity casting apparatus having a vacuum chamber including spring means for pressing the mold portions sealingly together and/or resisting destructive inward flexure of the mold. A split vacuum chamber, including a floating lower skirt portion, avoids the creation of stress concentration sites between the chamber and the mold.