the card 2 contains the default rca the card 2 sends a response to the host containing cid information via the card 1 circle 8 at circle 9 the host transmits a second rca command cmd_rca 2 to the card 1 since the rca 1 of card 1 is different than the default rca the cmd_rca 2 is then passed onto to card 2 at circle 10 at circle 11 since the card 2 contains the default rca the card 2 changes the default rca stored in the register 242 with the new rca 2 of the cmd_rca 2 and sends an acknowledgment to the host via the card 1 circle 12 at this time identification of card 2 is complete the process described above in connection with fig5 is then repeated to complete the identification process of card 3 and card 4 fig6 7 and 8 illustrate examples of command response and data tokens respectively which may be transmitted in the memory system of fig1 the command token 64 bits is generated by the host 500 the response token 32 bits is generated by the memory cards 100 200 300 and 400 the data token is transmitted to and from the host 500 and the memories contained in the memory cards 100 200 300 and 400 as shown the command token of the example of fig6 includes a 1 bit start bit a 1 bit transmission section a 1 bit data command section a 3 bit rca section a 9 bit cmd command index a 32 bit argument section a 9 bit reserved section a 7 bit crc7 section and a 1 bit end bit the response token of the example of fig7 includes a 1 bit start bit a 1 bit transmission section a 1 bit data response.