ACS ACR38K Smart Keyboard - Manual (Page 40)

ACR38x (CCID) – Reference Manual [email protected]
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Response Data Format (abData field in the RDR_to_PC_DataBlock)
SW1 SW2
Where:
SW1 SW2 = 90 00h if no error
9.3.6.7. PRESENT_CODE_MEMORY_CARD (SLE 4442 and SLE 5542)
To submit the secret code to the memory card to enable the write operation with the SLE 4442 and
SLE 5542 card, the following actions are executed:
1. Search a ‘1’ bit in the presentation error counter and write the bit to ‘0’.
2. Present the specified code to the card.
3. Try to erase the presentation error counter.
Command Format (abData field in the PC_to_RDR_XfrBlock)
Pseudo-APDU
CLA INS P1 P2 MEM_L
CODE
Byte 1 Byte 2 Byte 3
FFh 20h 00h 00h 03h
Where:
CODE Three bytes secret code (PIN)
Response Data Format (abData field in the RDR_to_PC_DataBlock)
SW1
SW2
ErrorCnt
90h
Where:
SW1 = 90h
SW2 (ErrorCnt) = Error Counter. 07h indicates that the verification is correct. 00h indicates
the password is locked (exceeded the maximum number of retries). Other
values indicate that the current verification has failed.
9.3.6.8. CHANGE_CODE_MEMORY_CARD (SLE 4442 and SLE 5542)
This command is used 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 to the execution of this command.