A method and apparatus for providing a preferred operating voltage to a
memory device as specified by a stored configuration parameter. The
apparatus includes a nonvolatile memory configured to store a preferred
memory device voltage configuration corresponding to a preferred
operating voltage of the memory device. The preferred memory device
voltage configuration is readable by a host and the circuit is responsive
to a command to modify the voltage to the memory device in accordance
with the preferred memory device configuration. The voltage to the memory
device is modified for improved performance and compatibility of the
memory device with a host system.