Read/Write The operation is same as the Read/Write Command, firstly need to define the number of blocks to be read/written and the start address of the blocks to be processed. But the high level commands integrated the low level commands - “PN_InListPassiveTarget, PN_SelectTarget, Authenticaiton” in a single commands. The high level commands calculates the corresponding key set, which should be stored into the MFRC500’s internal EEPROM by the “Store Key”, according to the Start Block Address (i.e. the corresponding Sector Number) and use it for the Authentication. The Serial Number of the card to be read/written will be shown in the Message Window. The content of the blocks read will be also displayed in the Memory Page Buffer. The data to be written by the High Level Write Commands should be available in the Memory Pages Buffer. (Just as the same as the Write operation).