Renesas Electronics /R7FA6M3AH /SCI0 /FDR

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Interpret as FDR

FIFO Data Count Register

R	Receive FIFO Data CountIndicate the quantity of receive data stored in FRDRH and FRDRL(Valid only in asynchronous mode(including multi-processor) or clock synchronous mode, while FCR.FM=1)
T	Transmit FIFO Data CountIndicate the quantity of non-transmit data stored in FTDRH and FTDRL(Valid only in asynchronous mode(including multi-processor) or clock synchronous mode, while FCR.FM=1)

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