D) Write_Data (*); E) Write_Protection (*); F) Present_Code (Only Sle 4442) (*) - ACS ACR30 Reference Manual

PROT 1
P8 P7 P6 P5 P4 P3 P2 P1 P16 P15 P14 P13 P12 P11 P10 P9
Px is the protection bit of BYTE x in the response data
'0' : byte is write protected
'1' : byte can be written
d) WRITE_DATA (*)
To write the specified data bytes to the specified address of the inserted card.
Command format
Instruction Data length
Code
LEN
91
H
LEN Number of data bytes to be written to the card, N, + 2
ADDR Byte address in the card of the first byte to be written. The high byte of the address is specified as the first byte of ADDR.
BYTE x Byte values to be written to the card starting at address ADDR. BYTE 1 is written to address ADDR; BYTE N is written to
address ADDR+N-1.
Response data format
No response data
e) WRITE_PROTECTION (*)
To write the protection bits for the specified addresses in the card.
Each of the bytes specified in the command is internally in the card compared with the byte stored at the specified address and if the data match,
the corresponding protection bit is irreversibly programmed to '0'.
Command format
Instruction Data length
Code
LEN
94
H
LEN Number of data bytes to be write protected, N, + 2
ADDR Byte address in the card of the first byte to be write protected. The high byte of the address is specified as the first byte of
ADDR.
BYTE x Byte values to be compared with the data in the card starting at address ADDR. BYTE 1 is compared with the data at address
ADDR; BYTE N is compared with the data at address ADDR+N-1.
Response data format
No response data
f) PRESENT_CODE (only SLE 4442) (*)
To submit the secret code to the card to enable the write operation with the SLE 4442 card.
The following actions are executed by the ACR30:
- search a '1' bit in the presentation error counter and write the bit to '0'
- present the specified code to the card
- try to erase the presentation error counter
Copyright  ADVANCED CARD SYSTEMS LTD. 2002
PROT 2 ....
.. .. .. .. ..
Data
ADDR BYTE 1 ...
Data
ADDR BYTE 1 ...
ACR30 Reference Manual
.. P18 P17
... BYTE N
... BYTE N
19