RFR[0]

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Interpret as RFR[0]

RCP=RCP_0

SAI Receive FIFO Register

RFP	Read FIFO Pointer
RCP	Receive Channel Pointer 0 (RCP_0): No effect. 1 (RCP_1): FIFO combine is enabled for FIFO reads and this FIFO will be read on the next FIFO read.
WFP	Write FIFO Pointer

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