ST STM32F31xx - Page 415

UM1581
Serial peripheral interface (SPI)
DocID023800 Rev 1
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20.2.7.10 SPI_RxFIFOThresholdConfig
Function Name
void SPI_RxFIFOThresholdConfig ( SPI_TypeDef * SPIx,
uint16_t SPI_RxFIFOThreshold)
Function Description
Configures the FIFO reception threshold for the selected SPI.
Parameters
 SPIx : where x can be 1, 2 or 3 to select the SPI peripheral.
 SPI_RxFIFOThreshold : specifies the FIFO reception
threshold. This parameter can be one of the following values:
 SPI_RxFIFOThreshold_HF : RXNE event is generated
if the FIFO level is greater or equal to 1/2.
 SPI_RxFIFOThreshold_QF : RXNE event is generated
if the FIFO level is greater or equal to 1/4.
Return values
 None.
Notes
 None.
20.2.7.11 SPI_BiDirectionalLineConfig
Function Name
void SPI_BiDirectionalLineConfig ( SPI_TypeDef * SPIx,
uint16_t SPI_Direction)
Function Description
Selects the data transfer direction in bidirectional mode for the
specified SPI.
Parameters
 SPIx : where x can be 1, 2 or 3 to select the SPI peripheral.
 SPI_Direction : specifies the data transfer direction in
bidirectional mode. This parameter can be one of the
following values:
 SPI_Direction_Tx : Selects Tx transmission direction
 SPI_Direction_Rx : Selects Rx receive direction
Return values
 None.
Notes
 None.