Nordic Semiconductor ASA
DEVICES WITH REMOVABLE SMART CARDS

Abstract:

A method of controlling an electronic device including a memory and a removable smart card. The method involves the device sending a request for context data to the smart card. The smart card sends context data to the device in response to the request and stores this data in the memory and power to the smart card is reduced. Power to the smart card is then increased or restored, and the data is written back to the smart card.