Read_Presentation_Error_Counter_Memory_Card (Only Sle4442 And Sle5542); Read_Protection_Bits - Advanced Card ACR39x Reference Manual

The arrangement of the protection bits in the PROT bytes is as follows:
PROT 1
P8 P7 P6 P5
Where:
Px is the protection bit of BYTE x in the response data.
'0' byte is write protected.
'1' byte can be written.
8.4.3. READ_PRESENTATION_ERROR_COUNTER_MEMORY_CARD (Only
SLE4442 and SLE5542)
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
FFh B1h
Response Data Format (abData field in the RDR_to_PC_DataBlock)
ERRCNT
Where:
ERRCNT
DUMMY
SW1 SW2
8.4.4.

READ_PROTECTION_BITS

This command is used to read the protection bits for the first 32 bytes.
Command Format (abData field in the PC_to_RDR_XfrBlock)
Pseudo-APDU
CLA INS
FFh B2h
ACR39x – Reference Manual
Version 1.03
P4 P3 P2 P1 P16 P15
P1 P2 MEM_L
00h 00h 04h
DUMMY 1 DUMMY 2
The value of the presentation error counter. 07h indicates that the last
verification is correct. 00h indicates that the password is locked (exceeded
the maximum number of retries). Other values indicate that the last
verification has failed.
Three bytes dummy data read from the card.
= 90 00h if no error.
P1 P2 MEM_L
00h 00h 04h
PROT 2
P14 P13 P12 P11 P10 P9
DUMMY 3 SW1 SW2
...
.. .. .. .. .. .. P18 P17
Page 30 of 35
info@acs.com.hk
www.acs.com.hk