Programable identification circuitry
AssigneeMicron Technology, Inc.
InventorFrankie Fariborz Roohparvar
Life of this patent
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Abstract
An integrated circuit has been described that includes a user programmable identification code register. The register can be programmed by the user to emulate other integrated circuit devices. The integrated circuit register can also be reset to reflect the original manufacturer information. The integrated circuit can be a memory device and allows the user to upgrade a system while indicating to the original system that the device is compatible.
Claims18
An integrated circuit device comprising:
- a programmable identification register to store identification data;
- and
- a control circuit coupled to program the identification register in response to an externally provided command.
A memory device comprising:
- a programmable identification register to store identification data;
- control signal inputs;
- and
- a control circuit coupled to program the identification register in response to a command provided on the control signal inputs.
A method of operating an integrated circuit comprising:
- reading identification codes stored in a register of the integrated circuit;
- and
- reprogramming the register in response to external commands to change the identification codes to user provided codes.
A method of operating an integrated circuit comprising:
- programming first and second registers of the integrated circuit with manufacturer provided identification codes;
- installing the integrated circuit in a system comprising a controller;
- and
- reprogramming the second register in response to external commands from the controller to store user provided codes.
Dependencies are inferred from the claim text.