Adaptive configuration of non-volatile memory

An apparatus comprising:

• a non-volatile memory;
• and
• a mode register to maintain information to indicate default configurations for the non-volatile memory, the default configurations to include:
• a default external clock operating frequency,
• a default input/output bus width, and
• a default command address cycle count;
• wherein the mode register is accessible to a controller in order to update the default configurations based on one or more capabilities of the non-volatile memory discoverable by the controller during initialization of the non-volatile memory, the one or more capabilities to include:
• available external clock operating frequencies,
• available input/output pins,
• available command/address pins, and
• a mode of operation for the non-volatile memory to include a storage mode or a memory mode;
• wherein values included in the mode register following an update to the default configuration indicate:
• a selected external clock operating frequency from among the available external clock operating frequencies,
• updated input/output bus width based on active input/output pins from among the available input/output pins, and
• updated command address cycle count based on active command/address pins from among the available command/address pins.

A method comprising:

• storing default values to a mode register for a non-volatile memory to indicate default configurations for the non-volatile memory, the default configurations including a default external clock operating frequency, an input/output bus width and a default command address cycle count;
• receiving updated values based on one or more capabilities of the non-volatile memory discoverable by a controller during initialization of the non-volatile memory, the one or more capabilities to include available external clock operating frequencies, available input/output pins, available command/address pins and a mode of operation for the non-volatile memory to include a storage mode or a memory mode, the one or more capabilities to include available external clock operating frequencies, available input/output pins, available command/address pins and a mode of operation for the non-volatile memory to include a storage mode or a memory mode;
• and
• storing the updated values in the mode register to enable an available external clock operating frequency, the input/output bus width and an updated command address cycle count to be configured based on the updated values, wherein the updated values indicate a selected external clock operating frequency from among the available external clock operating frequencies, updated input/output bus widths based on active input/output pins from among the available input/output pins and the updated command address cycle count based on active command/address pins from among the available command/address pins.

A system comprising:

• a controller;
• a non-volatile memory;
• and
• a mode register to maintain information to indicate default configurations for the non-volatile memory, the default configuration to include:
• a default external clock operating frequency,
• a default input/output bus width, and
• a default command address cycle count;
• wherein the mode register is accessible to the controller in order to update the default configurations based on one or more capabilities of the non-volatile memory discoverable by the controller during initialization of the non-volatile memory, the one or more capabilities to include:
• available external clock operating frequencies,
• available input/output pins,
• available command/address pins, and
• a mode of operation for the non-volatile memory to include a storage mode or a memory mode;
• wherein values included in the mode register following an update to the default configuration indicate:
• a selected external clock operating frequency from among the available external clock operating frequencies,
• updated input/output bus width based on active input/output pins from among the available input/output pins, and
• updated command address cycle count based on active command/address pins from among the available command/address pins.

A controller comprising;

• a configuration control logic to:
• receive information from a mode register maintained at a non-volatile memory that indicates default configurations for the non-volatile memory, the default configurations to include:
• a default external clock operating frequency,
• a default input/output bus width, and
• a default command address cycle count;
• and
• update the default configurations based on one or more capabilities of the non-volatile memory discoverable during initialization of the non-volatile memory, the one or more capabilities to include:
• available external clock operating frequencies,
• available input/output pins,
• available command/address pins, and
• a mode of operation for the non-volatile memory to include a storage mode or a memory mode;
• wherein values included in the mode register following an update to the default configuration indicate:
• a selected external clock operating frequency from among the available external clock operating frequencies,
• updated input/output bus width based on active input/output pins from among the available input/output pins, and
• updated command address cycle count based on active command/address pins from among the available command/address pins.