ACS ACR38 Reference Manual

Also see for ACR38 Smart: Reference manual

Contents

ACS ACR38 Reference Manual Manual pdf 35 page image

ACR38 Reference Manual version 1.9 February 2006Response data formatHeader Status Data length ERRCNT CODE SW1 SW2LEN Byte 1 Byte 2 Byte 301 HERRCNT The value of the presentation error counter after the code presentation.CODE The three bytes secret code read from the card.SW1, SW2 = 90 H 00 H if no errorIf the correct code has been presented to the card, the value of ERRCNT is 07 H and the value of CODE isidentical to the code data specified in the command.8.2.7.6 READ_PRESENTATION_ERROR_COUNTER_MEMORY_CARD (only SLE 4442)To read the presentation error counter for the secret code.Command formatHeader Instruction Data length DataLEN CLA INS P1 P2 MEM_LMSB LSB01 H A0 H 00 H 08 H FF H B1 H 00 H 00 H 00 HResponse data formatHeader Status Data length ERRCNT DUMMY 1 DUMMY 2 DUMMY 3 SW1 SW2LEN01 HERRCNT The value of the presentation error counter.DUMMY Three bytes dummy data read from the card.SW1, SW2 = 90 H 00 H if no error8.2.7.7 CHANGE_CODE_MEMORY_CARD (only SLE 4442)To write the specified data as new secret code in the card.The current secret code must have been presented to the card with the PRESENT_CODE command prior tothe execution of this command!Command formatHeader Instruction Data length DataLEN CLA INS P1 P2 MEM_L CODEMSB LSB Byte 1 Byte 2 Byte 301 H A0 H 00 H 08 H FF H D2 H 00 H 01 H 03 H Advanced Card Systems Ltd. Page 35 of 43