The RF module generates a 13.56 MHz signal over the antenna to the card, thus transmitting power and the clock signal. Data transmission to the card is achieved using amplitude modulation on the carrier. Transmission from the card to the coupler is achieved by means of load modulation. The GemEasyLink 681-BAT has a battery soldered onto the circuit board to safeguard the secret keys when the power supply is cut off. Direct access to 16 control and exchange registers Specific low-level function set can be provided in C source code allowing access to all features available in the GemEasy and GemFlash cards.
All trademarks are the property of their respective owners.
Gemplus Privacy Policy .