The card ID associated with the card initialized by this command.
The starting byte offset into the card buffer, as a decimal or hex (0xnnnn) number.
The number of bytes to be transmitted.
The list of bytes read, in ASCII BCD, formatted as:
(devGet card_id offset nbytes byte0 byte1 ... byteN)
otherwise (error).
This command provides direct read access to the hardware card buffers (if available). It is intended for use only during very low-level debug.