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8. NFC management interface commands
The NFC module exposes an interface, known as the Management Interface. Your application
software uses to manage and configure the NFC module. This section of the manual describes the
command set and its responses.
Note: If there is a response to the command, the command is successful. If the command times out,
it has failed.
USB-connected device
• The Management Interface sends commands as HID reports.
• The report length is always 64 bytes long, even if the commands are just a few bytes.
• The NFC module ignores unused bytes at the end of the commands, but the recommendation is
that you should initialise unused bytes to [0x00]. The example commands and responses omit
trailing zeroes.
Serial-connected device
• The NFC module exposes a Management Interface on slot [0xFF].
• The management commands are always less than 64 bytes long, while the responses are
always 64 bytes long. Even though the response is just a few bytes, it is always padded with
[0x00] to make it a 64-byte packet to preserve compatibility across different host interfaces.
• All management commands use a CCID PC_to_RDR_XferBlock message to communicate
with the module. The application software should be aware of this and it should add/remove the
CCID header as required.
Note: All commands have an attached CCID header, which is shown in black text in the
examples. The example responses omit trailing zeroes.
8.1 Get firmware version
Use this command to retrieve the firmware version on the NFC module.
8.1.1 Management command bytes
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