This is a blank CPU cards used by individuals and company teams to study and research COS. Developed and produced by Seabreeze Smart Card Co.,Ltd. The card has a built-in COS downloader and can download COS written by the user himself.
The blank cards itself provides a basic check PIN, read, write, erase EEPROM commands, any content can be written by the user to the any space in the EEPROM. Can make many companies without COS development capabilities can be simply applied to the actual product.
The cards supports PPS and supports a communication protocol with T=1.
