Advanced Card ACR39x, Reference Manual

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ACR39x – Reference Manual
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Version 1.03
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Page 25 of 35
8.3.3. READ_PRESENTATION_ERROR_COUNTER_MEMORY_CARD (Only
SLE4428 and SLE5528)
This command is used to read the presentation error counter for the secret code.
Command format ( abData field in the PC_to_RDR_XfrBlock )
Pseudo-APDU
CLA INS P1 P2 MEM_L
FFh B1h 00h 00h 03h
Response data format ( abData field in the RDR_to_PC_DataBlock )
ERRCNT DUMMY 1 DUMMY 2 SW1 SW2
Where:
ERRCNT The value of the presentation error counter. FFh indicates the last verification is
correct. 00h indicates the password is locked (exceeded maximum number of
retries). Other values indicate the last verification failed.
DUMMY Two bytes dummy data read from the card.
SW1 SW2 = 90 00h if no error.
8.3.4. READ_PROTECTION_BIT
Command format ( abData field in the PC_to_RDR_XfrBlock )
Pseudo-APDU
CLA INS
Byte Address
MEM_L
MSB LSB
FFh B2h
Where:
MSB Byte Address = 0000 00A
9
A
8
b is the memory address location of the memory card.
LSB Byte Address = A
7
A
6
A
5
A
4
A
3
A
2
A
1
A
0
b is the memory address location of the memory
card
MEM_L Length of data to be read from the memory card (in multiple of 8 bits;
maximum of 32).
MEM_L = 1 + INT [(number of bits – 1)/8]
For example: To read eight protection bits starting from memory
0010h, the following pseudo-APDU should be issued as:
FF B1 00 10 01h