About half-duplex communication (Rx frame size is 3)-2

Hello,

Is it possible to perform half-duplex communication like the attached document?

 (I understand that the timing to switch to Rx is tricky.)

The Rx frame size is 3 instead of 1.

After changing to Rx, can I receive 3 bytes continuously as shown in the figure?

In that case, should I use RXFIFO?

Is it possible to select only 8-bit or 16-bit data size for the FIFO?

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