NXP Semiconductors freescale K51 Series Reference Manual

I2Sx_FCSR field descriptions (continued)Field DescriptionThese bits indicate the number of data words in Receive FIFO 0.0000 0 data word in receive FIFO.0001 1 data word in receive FIFO.0010 2 data word in receive FIFO.0011 3 data word in receive FIFO.0100 4 data word in receive FIFO.0101 5 data word in receive FIFO.0110 6 data word in receive FIFO.0111 7 data word in receive FIFO.1000 8 data word in receive FIFO.1000 8 data word in receive FIFO.1001 9 data word in receive FIFO.1010 10 data word in receive FIFO.1011 11 data word in receive FIFO.1100 12 data word in receive FIFO.1101 13 data word in receive FIFO.1110 14 data word in receive FIFO.1111 15 data word in receive FIFO.11–8TFCNT0Transmit FIFO Counter 0.These bits indicate the number of data words in Transmit FIFO 0.0000 0 data word in transmit FIFO.0001 1 data word in transmit FIFO.0010 2 data word in transmit FIFO.0011 3 data word in transmit FIFO.0100 4 data word in transmit FIFO.0101 5 data word in transmit FIFO.0110 6 data word in transmit FIFO.0111 7 data word in transmit FIFO.1000 8 data word in transmit FIFO.1001 9 data word in transmit FIFO.1010 10 data word in transmit FIFO.1011 11 data word in transmit FIFO.1100 12 data word in transmit FIFO.1101 13 data word in transmit FIFO.1110 14 data word in transmit FIFO.1111 15 data word in transmit FIFO.7–4RFWM0Receive FIFO Full WaterMark 0.These bits control the threshold at which the RFF0 flag will be set. The RFF0 flag is set whenever thedata level in Rx FIFO 0 reaches the selected threshold.0000 Reserved0001 RFF set when at least one data word have been written to the Receive FIFO Set when RxFIFO =1,2.....15 data wordsTable continues on the next page...Memory map/register definitionK51 Sub-Family Reference Manual, Rev. 6, Nov 20111446 Freescale Semiconductor, Inc.