User's Manual

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Argument
Size
Value
Description
Command ID
1
0x71
MFDF_CREDIT
File number
1
X
File number inside application
Credit value
4
X
4 bytes signed value, LSB first
Response description
ACK
1
0x00
Command ID
1
0x71
MFDF_CREDIT
Example:
HOST=>READER: 0x71 – MFDF_CREDIT
0x02 – file number
0x05 0x00 0x00 0x00 – 4 bytes signed value, LSB first
READER=>HOST: 0x00 – ACK byte
0x71 – related command code MFDF_CREDIT
3.5.19 Credit file (0x72)
This command allows a limited increase of a value stored in a value file without having full credit
permissions to the file. Please refer to the NXP documentation for more information.
Command description
Argument
Size
Value
Description
Command ID
1
0x72
MFDF_LIMITED_CREDIT
File number
1
X
File number inside
application
Credit value
4
X
4 bytes signed value, LSB first
Response description
ACK
1
0x00
Command ID
1
0x72
MFDF_ LIMITED_CREDIT
Example:
HOST=>READER: 0x72 – MFDF_ LIMITED_CREDIT
0x02 – file number
0x05 0x00 0x00 0x00 – 4 bytes signed value, LSB first
READER=>HOST: 0x00 – ACK byte
0x72 – related command code MFDF_ LIMITED_CREDIT
3.5.20 Debit file (0x73)
This command decreases a value stored in a value file on the TAG.
Command descript
ion
Argument
Size
Value
Description