Deserial Serial Peripheral Interface (DSPI)MPC5606S Microcontroller Reference Manual, Rev. 7Freescale Semiconductor 3299. Clear transfer count either by setting CTCNT bit in the command word of the first entry in the newqueue or via CPU writing directly to SPI_TCNT field in the DSPIx_TCR.10. Enable DMA channel by enabling the DMA enable request for the DMA channel assigned to theDSPI TX FIFO, and RX FIFO by setting the corresponding DMA set enable request bit.11. Enable serial transmission and serial reception of data by clearing the EOQF bit.11.9.2 Baud rate settingsTable 11-26 shows the baud rate that is generated based on the combination of the baud rate prescaler PBRand the baud rate scaler BR in the DSPIx_CTARs. The values are calculated at a 64 MHz system frequencywith DBR = 0.Table 11-26. Baud rate valuesBaud rate divider prescaler values(DSPI_CTAR[PBR])2 3 5 7Baud Rate Scaler Values (DSPI_CTAR[BR])2 16.0 MHz 10.7 MHz 6.4 MHz 4.57 MHz4 8 MHz 5.33 MHz 3.2 MHz 2.28 MHz6 5.33 MHz 3.56 MHz 2.13 MHz 1.52 MHz8 4 MHz 2.67 MHz 1.60 MHz 1.15 MHz16 2 MHz 1.33 MHz 800 kHz 571 kHz32 1 MHz 670 kHz 400 kHz 285 kHz64 500 kHz 333 kHz 200 kHz 142 kHz128 250 kHz 166 kHz 100 kHz 71.7 kHz256 125 kHz 83.2 kHz 50 kHz 35.71 kHz512 62.5 kHz 41.6 kHz 25 kHz 17.86 kHz1024 31.2 kHz 20.8 kHz 12.5 kHz 8.96 kHz2048 15.6 kHz 10.4 kHz 6.25 kHz 4.47 kHz4096 7.81 kHz 5.21 kHz 3.12 kHz 2.23 kHz8192 3.90 kHz 2.60 kHz 1.56 kHz 1.11 kHz16384 1.95 kHz 1.31 kHz 781 Hz 558 Hz32768 979 Hz 653 Hz 390 Hz 279 Hz
