40.4.11 SAI Receive Configuration 4 Register (I2Sx_RCR4)This register must not be altered when RCSR[RE] is set.Address: 4002_F000h base + 90h offset = 4002_F090hBit 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16R 0FCONT 0FPACK0FRSZWReset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0R 0SYWD0MF FSEONDEMFSP FSDWReset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0I2Sx_RCR4 field descriptionsField Description31–29ReservedThis field is reserved.This read-only field is reserved and always has the value 0.28FCONTFIFO Continue on ErrorConfigures when the SAI will continue receiving after a FIFO error has been detected.0 On FIFO error, the SAI will continue from the start of the next frame after the FIFO error flag has beencleared.1 On FIFO error, the SAI will continue from the same word that caused the FIFO error to set after theFIFO warning flag has been cleared.27–26ReservedThis field is reserved.This read-only field is reserved and always has the value 0.25–24FPACKFIFO Packing ModeEnables packing of 8-bit data or 16-bit data into each 32-bit FIFO word. If the word size is greater than 8-bit or 16-bit then only the first 8-bit or 16-bits are stored to the FIFO. The first word in each frame alwaysstarts with a new 32-bit FIFO word and the first bit shifted must be configured within the first packed word.When FIFO packing is enabled, the FIFO read pointer will only increment when the full 32-bit FIFO wordhas been read by software.00 FIFO packing is disabled01 Reserved.10 8-bit FIFO packing is enabled11 16-bit FIFO packing is enabled23–17ReservedThis field is reserved.This read-only field is reserved and always has the value 0.Table continues on the next page...Chapter 40 Synchronous Audio Interface (SAI)KL27 Sub-Family Reference Manual , Rev. 5, 01/2016Freescale Semiconductor, Inc. 807
