User's Manual

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READER=>HOST: 0x00 – ACK byte
0x69 – related command code MFDF_CHANGE_APP
3.5.11 Get key settings (0x6A)
This command gets the key settings bytes from the tag. This command does not require any arguments but
an application must be selected and authorized.
Command description
Argument
Size
Value
Description
Command ID
1
0x6A
MFDF_GET_KEY_SETTINGS
Response description
ACK
1
0x00
Command ID
1
0x6A
MFDF_GET_KEY_SETTINGS
Key settings
2
X
Key settings bytes
Example:
HOST=>READER: 0x6A – MFDF_GET_KEY_SETTINGS
READER=>HOST: 0x00 – ACK byte
0x6A – related command code MFDF_GET_KEY_SETTINGS
0x01 0x02 – key settings bytes
3.5.12 Change key settings (0x6B)
This command changes the key settings bytes for the selected and authorized application. It takes one
argument, 2-byes long with key settings.
Command description
Argument
Size
Value
Description
Command ID
1
0x6B
MFDF_CHANGE_KEY_SETTINGS
New key settings
2
X
Key settings bytes
Response description
ACK
1
0x00
Command ID
1
0x6B
MFDF_CHANGE_KEY_SETTINGS
Example:
HOST=>READER: 0x6B – MFDF_GET_KEY_SETTINGS
0x01 0x02 – key settings bytes
READER=>HOST: 0x00 – ACK byte
0x6B – related command code MFDF_GET_KEY_SETTINGS
3.5.13 Create standard or backup data file (0x6C)
This command creates a file for the storage of plain unformatted user data within the selected application.
It takes four arguments listed in the table below.