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AT32F413
Series Reference Manual
2022.06.27
Page 9
Rev 2.00
Function overview ...................................................................... 159
SPI description ........................................................................... 159
Full-duplex/half-duplex selector .................................................. 160
Chip select controller .................................................................. 162
SPI_SCK controller .................................................................... 162
CRC .......................................................................................... 162
DMA transfer .............................................................................. 163
Transmitter ................................................................................ 164
Receiver .................................................................................... 164
Motorola mode ........................................................................... 165
Interrrupts ............................................................................... 167
IO pin control .......................................................................... 167
Precautions ............................................................................. 168
S functional description ............................................................ 168
S introduction .......................................................................... 168
Operation mode selector ............................................................. 169
Audio protocol selector ............................................................... 170
I2S_CLK controller ..................................................................... 171
DMA transfer .............................................................................. 174
Transmitter/Receiver .................................................................. 174
I2S communication timings ......................................................... 175
Interrupts ................................................................................... 176
IO pin control ............................................................................. 176
SPI registers ............................................................................. 177
SPI control register1 (SPI_CTRL1) (Not used in I
SPI control register2 (SPI_CTRL2) .............................................. 178
SPI status register (SPI_STS) ..................................................... 179
SPI data register (SPI_DT) ......................................................... 180
SPICRC register (SPI_CPOLY) (Not used in I
SPIRxCRC register (SPI_RCRC) (Not used in I2S mode) .............. 180
SPITxCRC register (SPI_TCRC) .................................................. 180
SPI_I2S register (SPI_I2SCTRL) ................................................. 180
SPI_I2S prescaler register (SPI_I2SCLKP) .................................. 181
Timer .......................................................................................... 182