Deserial – Serial Peripheral Interface (DSPI)
PXN20 Microcontroller Reference Manual, Rev. 1
30-6 Freescale Semiconductor
Table 30-2. DSPI Memory Map
Offset from
DSPI_BASE
DSPI_A = 0xFFF9_0000
DSPI_B = 0xFFF9_4000
DSPI_C = 0xC3F9_0000
DSPI_D = 0xC3F9_4000
Register Access Reset Value
Section/Page
0x0000 DSPI_MCR—DSPI module configuration register R/W 0x0000_4001
30.3.2.1/30-7
0x0004 Reserved
0x0008 DSPI_TCR—DSPI transfer count register R/W 0x0000_0000
30.3.2.2/30-9
0x000C
DSPI_CTAR0
—
DSPI clock and transfer attributes register 0
R/W 0x7800_0000
30.3.2.3/30-10
0x0010
DSPI_CTAR1
—
DSPI clock and transfer attributes register 1
R/W 0x7800_0000
30.3.2.3/30-10
0x0014
DSPI_CTAR2
—
DSPI clock and transfer attributes register 2
R/W 0x7800_0000
30.3.2.3/30-10
0x0018
DSPI_CTAR3
—
DSPI clock and transfer attributes register 3
R/W 0x7800_0000
30.3.2.3/30-10
0x001C
DSPI_CTAR4
—
DSPI clock and transfer attributes register 4
R/W 0x7800_0000
30.3.2.3/30-10
0x0020
DSPI_CTAR5
—
DSPI clock and transfer attributes register 5
R/W 0x7800_0000
30.3.2.3/30-10
0x0024
DSPI_CTAR6
—
DSPI clock and transfer attributes register 6
R/W 0x7800_0000
30.3.2.3/30-10
0x0028
DSPI_CTAR7
—
DSPI clock and transfer attributes register 7
R/W 0x7800_0000
30.3.2.3/30-10
0x002C DSPI_SR—DSPI status register R 0x0000_0000
30.3.2.4/30-16
0x0030 DSPI_RSER—DSPI DMA/interrupt request select and
enable register
R/W 0x0000_0000
30.3.2.5/30-18
FIFO Registers
0x0034 DSPI_PUSHR—DSPI push TX FIFO register R/W 0x0000_0000
30.3.2.6/30-19
0x0038 DSPI_POPR—DSPI pop RX FIFO register R 0x0000_0000
30.3.2.7/30-21
0x003C DSPI_TXFR0—DSPI transmit FIFO register 0 R 0x0000_0000
30.3.2.8/30-21
0x0040 DSPI_TXFR1—DSPI transmit FIFO register 1 R 0x0000_0000
30.3.2.8/30-21
0x0044 DSPI_TXFR2—DSPI transmit FIFO register 2 R 0x0000_0000
30.3.2.8/30-21
0x0048 DSPI_TXFR3—DSPI transmit FIFO register 3 R 0x0000_0000
30.3.2.8/30-21
0x004C–0x0078 Reserved
0x007C DSPI_RXFR0—DSPI receive FIFO register 0 R 0x0000_0000
30.3.2.9/30-22
0x0080 DSPI_RXFR1—DSPI receive FIFO register 1 R 0x0000_0000
30.3.2.9/30-22
0x0084 DSPI_RXFR2—DSPI receive FIFO register 2 R 0x0000_0000
30.3.2.9/30-22
0x0088 DSPI_RXFR3—DSPI receive FIFO register 3 R 0x0000_0000
30.3.2.9/30-22
0x008C–0x00B8 Reserved
DSI Registers
0x00BC DSPI_DSICR—DSPI DSI configuration register R/W 0x0000_0000
30.3.2.10/30-23
0x00C0 DSPI_SDR—DSPI DSI serialization data register R 0x0000_0000
30.3.2.11/30-24
0x00C4 DSPI_ASDR—DSPI DSI alternate serialization data
register
R/W 0x0000_0000
30.3.2.12/30-25
0x00C8 DSPI_COMPR—DSPI DSI transmit comparison register R 0x0000_0000
30.3.2.13/30-26
0x00CC DSPI_DDR—DSPI DSI deserialization data register R 0x0000_0000
30.3.2.14/30-26
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