Information

I2Sx_FCSR field descriptions (continued)
Field Description
These 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.
11–8
TFCNT0
Transmit 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.
7–4
RFWM0
Receive FIFO Full WaterMark 0.
These bits control the threshold at which the RFF0 flag will be set. The RFF0 flag is set whenever the
data level in Rx FIFO 0 reaches the selected threshold.
0000 Reserved
0001 RFF set when at least one data word have been written to the Receive FIFO Set when RxFIFO =
1,2.....15 data words
Table continues on the next page...
Memory map/register definition
K20 Sub-Family Reference Manual, Rev. 6, Nov 2011
1520 Freescale Semiconductor, Inc.