Advanced Card Systems Limited ACR1281U Benutzerhandbuch
ACR1281U
Advanced Card Systems Ltd.
Page 56 of 81
PROT 1
PROT 2
PROT3
PROT 4
SW1
SW2
• PROT y
Bytes containing the protection bits from protection memory
• SW1, SW2
= 90 00 if no error
• The arrangement of the protection bits in the PROT bytes is as follows:
•
•
PROT 1
PROT 2
…
P8
P7
P6
P5
P4
P3
P2
P1
P16
P15
P14
P13
P12
P11
P10
P9
..
..
..
..
..
..
P18
P17
• Px is the protection bit of BYTE x in the response data
• ‘0’ byte is write protected
• ‘1’ byte can be written
6.5 Write Memory Card
• Command format
Pseudo-APDU
CLA
INS
P1
Byte
Address
MEM_L
Byte 1
....
....
Byte N
FF
H
D0
H
00
H
Byte Address
= A7A6A5A4 A3A2A1A0 b is the memory address location of the memory card.
MEM_L
Length of data to be written to the memory card.
Byte x
Data to be written to the memory card.
• Response data format
SW1
SW2
• SW1, SW2
= 90 00 if no error
6.6 Write Protection Memory 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’.
at the specified address and if the data match, the corresponding protection bit is irreversibly
programmed to ‘0’.
• Command format
Pseudo-APDU
CLA
INS
P1
Byte
Address
MEM_L
Byte 1
....
....
Byte N
FF
H
D1
H
00
H