Write binary apdu, Erase counter apdu – MagTek IntelliStripe65 99875161 User Manual

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IntelliStripe 65 Command Reference


100

The entire card can be read with one command. Bits that are “unreadable” will be
returned with the electrical value the card imposes on the I/O line at the time of read
sampling.

Response APDU:

Data Field (from card)

SW1

SW2

Possible SW1/SW2 combinations:

SW1/SW2

Meaning

9000

Normal completion, no errors


Write Binary APDU

The Write Binary command performs a logical AND of the bits already present in the card with
the bits given in the command APDU. For each bit that is 0 in the command APDU, if the
corresponding bit on the card is 1, it will be written to 0. Bits in the command APDU that are set
to 1 will be ignored, the state of the corresponding bit on the card will not be checked. Even
though each specified bit will be written, the result of the operation is NOT verified and no errors
are reported. The user may desire to Read the data to assure all intended bits have been written.

If there is a need to set a bit on the card to the value of 1, it must be done using the Erase Counter
command. These commands may cause erasure of more than one bit on the card, so be careful!

Command APDU:

CLA

INS

P1

P2

Lc

Data Field

00

D0

xx

Adr

Len

Data to be written

CLA is always 00

INS is always D0

P1 is ignored
P2 is the address where the write will start

Lc is the number of bytes to write.

Data Field contains the bytes to write.

Response APDU:

SW1

SW2

Possible SW1/SW2 combinations:

SW1/SW2

Meaning

9000

Normal completion, no errors


Erase Counter APDU

The Erase Counter command is used to erase counter bytes of the card. For this type of card
erased means that each bit = 1.

If the specified address is not in the range specified by the Counter Lowest Address and the

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