Read_Presentation_Error_Counter_Memory_Card (Only Sle 5542); Change_Code_Memory_Card (Only Sle 5542) - ACS ACR 38 Reference Manual

Response data format
ERRCNT The value of the presentation error counter after the code presentation.
CODE The three bytes secret code read from the card.
SW1, SW2 = 90 00
H
If the correct code has been presented to the card, the value of ERRCNT is 07
identical to the code data specified in the command.

READ_PRESENTATION_ERROR_COUNTER_MEMORY_CARD (only SLE 5542)

To read the presentation error counter for the secret code.
Command format
Response data format
Header
01
H
ERRCNT The value of the presentation error counter.
DUMMY Three bytes dummy data read from the card.
SW1, SW2 = 90 00
H

CHANGE_CODE_MEMORY_CARD (only SLE 5542)

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!
Command format
Header Instruction
01 A0
H
ACR38 Reference Manual
Version 2.2 January 2008
A C R 3 8 S m a r t C a r d R e a d e r / W r i t e r
Header Status Data length ERRCNT
LEN
01
H
if no error
H
Header Instruction Data length
LEN
MSB LSB
01 A0 00 08
H H H
Status Data length ERRCNT
LEN
if no error
H
Data length
LEN CLA
MSB LSB
00 08 FF
H H H H
CODE
Byte 1 Byte 2 Byte 3
Data
CLA INS P1
FF B1 00
H H H H
DUMMY 1 DUMMY 2 DUMMY 3
Data
INS P1 P2 MEM_L
D2 00 01 03
H H H
SW1 SW2
and the value of CODE is
H
P2 MEM_L
00 00
H H
SW1 SW2
CODE
Byte 1 Byte 2 Byte 3
H
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