STMicroelectronics SPC572L series Reference Manual page 1158

Deserial Serial Peripheral Interface (DSPI)
Field
Transmit FIFO Fill Request Enable
Enables the TFFF flag in the status register to generate a request.
6
DSPI_RSER[TFFF_DIRS] toggles between either an interrupt or a DMA request.
TFFF_RE
0 Disabled.
1 Enabled.
Transmit FIFO Fill DMA or Interrupt Request Select
Selects between generating a DMA request or an interrupt request.
7
DSPI_SR[TFFF] flag and DSPI_RSER[TFFF_RE] must be set.
TFFF_DIRS
0 Interrupt requests.
1 DMA requests.
Command Transmission Complete Request Enable.
8
The CMDTCF_RE bit enables CMDTCF flag in the status register to generate an interrupt request.
CMDTCF_RE 0 Disabled.
1 Enabled.
DSI Parity Error Request Enable
9
Enables the DPEF flag in the status register to generate an interrupt request.
DPEF_RE 0 Disabled.
1 Enabled.
SPI Parity Error Request Enable
10
Enables the SPEF flag in the status register to generate an interrupt request.
SPEF_RE 0 Disabled.
1 Enabled.
DSI data received with active bits Request Enable
11
Enables the DDIF flag in the status register to generate an interrupt requests.
DDIF_RE 0 Disabled.
1 Enabled.
Receive FIFO Overflow Request Enable
12
Enables the RFOF flag in the status register to generate an interrupt request.
RFOF_RE 0 Disabled.
1 Enabled.
Transmit FIFO Invalid Write Request Enable
13
Enables the TFIWF flag in the status register to generate an interrupt request.
TFIWF_RE 0 Disabled.
1 Enabled.
Receive FIFO Drain Request Enable
Enables the RFDF flag in the status register to generate a request.
14
DSPI_RSER[RFDF_DIRS] toggles either an interrupt or a DMA request.
RFDF_RE
0 Disabled
1 Enabled
Receive FIFO Drain DMA or Interrupt Request Select.
Selects between generating a DMA request or an interrupt request.
15
DSPI_SR[RFDF] flag and DSPI_RSER[RFDF_RE] must be set.
RFDF_DIRS
0 Interrupt request.
1 DMA request.
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Table 618. DSPI_RSER field descriptions(Continued)
DocID027809 Rev 4
Description
RM0400