A system and method for enabling a vendor mode on an integrated circuit. A method is disclosed for applying a potential to a no-connect pin, whose function is unknown to the customer, to prevent the accidental enabling of the vendor mode. Applying the potential to the no-connect pin while concurrently applying a distinct sequence of logic values to other pins signals the deliberate intention to activate the vendor mode.

 
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> Computer guided ablation of tissue using integrated ablative/temperature sensing devices

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