NXP Semiconductors MPC5605BK, Reference Manual, Page: 617 / 964

Chapter 26 Deserial Serial Peripheral Interface (DSPI)
MPC5606BK Microcontroller Reference Manual, Rev. 2
Freescale Semiconductor 615
Table 26-20. DSPI x _PUSHR field descriptions
Field Description
CONT Continuous peripheral chip select enable
Selects a continuous selection format. The bit is used in SPI master mode. The bit enables the selected
CS signals to remain asserted between transfers. See
Section 26.6.5.5, Continuous selection format ,
for more information.
0 Return peripheral chip select signals to their inactive state between transfers
1 Keep peripheral chip select signals asserted between transfers
CTAS Clock and transfer attributes select
Selects which of the DSPI
x _CTARs is used to set the transfer attributes for the SPI frame. In SPI slave
mode, DSPI x _CTAR0 is used. The following table shows how the CTAS values map to the
DSPI x _CTARs. There are eight DSPI x _CTARs in the device DSPI implementation.
Note: Use in SPI master mode only.
EOQ End of queue
Provides a means for host software to signal to the DSPI that the current SPI transfer is the last in a
queue. At the end of the transfer the EOQF bit in the DSPI
x _SR is set.
0 The SPI data is not the last data to transfer
1 The SPI data is the last data to transfer
Note: Use in SPI master mode only.
CTCNT Clear SPI_TCNT
Provides a means for host software to clear the SPI transfer counter. The CTCNT bit clears the
SPI_TCNT field in the DSPI
x _TCR. The SPI_TCNT field is cleared before transmission of the current
SPI frame begins.
0 Do not clear SPI_TCNT field in the DSPI x _TCR
1 Clear SPI_TCNT field in the DSPI x _TCR
Note: Use in SPI master mode only.
CTAS
Use clock and transfer
attributes from
000 DSPI x _CTAR0
001 DSPI x _CTAR1
010 DSPI x _CTAR2
011 DSPI x _CTAR3
100 DSPI x _CTAR4
101 DSPI x _CTAR5
110 Reserved
111 Reserved