Is it possible to read multiple bytes of data at once from CLRC663's internal FIFO via RS232?

[Elly]

Hello, 
There are 10 bytes of data read from tag memory in the internal FIFO(inventory).
Is there a way to read this data at once? 
Since the register for reading and writing FIFO data (0x05) is 1 byte, is there no choice but to read byte by byte?
The host interface is RS232.