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ACR30 Reference Manual

Version 3.3 January 2009

Page 33 of 44

ACR30

9.2.3.7. CHANGE_CODE (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 to the execution of this command!

Command format

Instruction

Code

Data length Data

CODE

CODE The three bytes new secret code (PIN)

Response data format

No response data

Note (*) – SAM Reader does not support for memory cards

9.2.4. Siemens SLE 4418/4428 intelligent 1K Byte Memory Card (*)

9.2.4.1. RESET (*)

This command powers up the card inserted in the card reader and performs a card reset.

If the card is powered up when the command is being issued, only a reset of the card is carried out,

the power supply to the card is not switched off.

Command format

Instruc

tion

Code

Data

length

Response data format

ATR

ATR Four bytes Answer-To-Reset read from the card.

The ATR bytes are read from the card with LSB first, i.e., the first bit read from the card is

the LSB of the first ATR byte.

9.2.4.2. POWER_OFF (*)

This command powers off the card inserted in the card reader.

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ACS ACR30 Spécifications Page 33